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Technical Training ManualIncluding…Down-to-1High Speed Troubleshooting
COPYRIGHT © 2009 MITSUBISHI DIGITAL ELECTRONICS AMERICA, INC.ALL RIGHTS RESERVED
T 20092010
ECHNICALRAINING
1080pLCD
Flat Panel
1080pLCD
Flat Panel
V41C V41 V41+WD-60C9 WD-60737 WD-65837WD-65C9 WD-65737 WD-73837WD-73C9 WD-73737 WD-82837
WD-82737
DLP Projection
VLP41 VLP41+ VLP41++LT-40151 LT-40153 LT-46249LT-46151 LT-46153 LT-52249LT-52151 LT-52153
LCD Flat Panel
1080pDLP®
PTV
1080pDLP®
PTV
2009/2010Technical Training Manual
Table of ContentsINTRODUCTION .......................................................................................................... Page
Display Technologies ............................................................................................................. IDLP Projection & LCD Flat Panel Product line ...................................................................... IFeatures and Technologies .................................................................................................... IIFeature Matrix .................................................................................................................... VIDimensions ........................................................................................................................ VIINew User Interface .......................................................................................................... VIII
DLP Projection............................................................................................................... Part 1Chapter 1: Service Adjustments, & Data Transfer ............................................................. 1-1Chapter 2: Down-to-1 Troubleshooting ............................................................................. 2-1Chapter 3: Disassembly .................................................................................................... 3-1Chapter 4: Circuit Block Diagrams .................................................................................... 4-1Chapter 5: DLP Parts Quick Reference ............................................................................. 5-1
LCD Flat Panel .............................................................................................................. Part 2Chapter 1: Down-to-1 Troubleshooting ............................................................................. 1-1Chapter 2: Disassembly .................................................................................................... 2-1Chapter 3: Circuit Block Diagrams .................................................................................... 3-1Chapter 4: LCD Parts Quick Reference ............................................................................ 4-1
Features, specifications and dimensions are subject to changewithout notice.
Digital Light Processing, Digital Micro mirror Device, and DLPare trademarks or registered trademarks of Texas Instruments.
ENERGY STAR and the ENERGY STAR mark are registeredU.S. marks. ENERGY STAR is a registered mark owned by theU.S. government.
Dolby, Dolby Digital and Dolby Pro Logic are registered trade-marks of Dolby Laboratories.
HDMI,the HDMI logo and High-Definition Multimedia Inter-face are trademarks or registered trademarks of HDMI Licens-ing, LLC.
In order to display 3D images, Mitsubishi LASERVUE & HomeTheater DLP TVs require source devices to support checker-board display formats for display of 3D gaming or 3D cinemacontent.
A 3D standard format does not currently exist for Blu-Ray orDVD prepackaged media. A 3D standard may emerge that is notcompatible with Mitsubishi LASERVUE or Home TheaterDLPs.
“x.v.Color” is a trademark of Sony Corporation.
6-Color Processor™, DeepField™ Imager, Easy Connect™, NetCommand®, PerfectColor™, PerfecTint™, Plush 1080p®,SharpEdge™, Smooth120Hz™, Tru1080p™, LASERVUE™ aretrademarks or registered trademarksof Mitsubishi Digital Elec-tronics America, Inc.
Trademark & Legal Information
I
IntroductionThis training manual will familiarize the service techni-cian with Mitsubishi’s 2009-2010 DLP Projection andLCD Flat Panel product line. While it can be used as aservice aid, be sure to refer to the Service Manual forcomplete service information including safety instructions.
Display TechnologiesThis training manual covers two of the three display tech-nologies used in the 2009-2010 product line, DLP Pro-jection and LCD Flat Panel. Mitsubishi’s product lineupalso includes LASERVUE™. The V40 Chassis is cur-rently available and the V42 Chassis is slated to be in-troduced in the near future.
This manual is divided to cover the two display typesseparately. DLP Projection is covered in Part 1. LCDFlat Panel is covered in Part 2.
IntroductionMitsubishi’s 2009-2010
DLP Projection & LCD Flat PanelProduct Line
Model / ChassisContinuing the trend from previous years, the 2009-2010product line focuses on large screen sizes in compactcabinets. With the introduction of two 82” DLP RearProjection TV models, the term Big Screen really doesapply to Mitsubishi. A breakdown of LCD and DLPmodels by size and chassis is shown below with DLPtechnology used for the larger screen sizes and LCD forthe smaller screen sizes.
The DLP Projection TV line includes ten models that inaddition to two 60” models, includes three 65” models,three 73” models and the two 82” models previouslymentioned.
The LCD Flat Panel line-up, referred to as Unisen, in-cludes eight models in 40”, 46” and 52” wide screensizes.
SIZE VLP41 VLP41+ VLP41++40" LT-40151 LT-4015346" LT-46151 LT-46153 LT-4624952" LT-52151 LT-52153 LT-52249LCD Flat Panel - Models by Screen Size and Chassis
SIZE V41C V41 V41+60" WD-60C9 WD-6073765" WD-65C9 WD-65737 WD-6583773" WD-73C9 WD-73737 WD-7383782" WD-82737 WD-82837DLP Projection - Models by Screen Size and Chassis
II
Features & TechnologiesWith today’s demanding customer, it is no longer enoughfor a service technician to be able to perform compe-tent repairs. He must be knowledgable of all the latestfeatures and technologies available in the market place.The ability to demonstrate and give knowledgable tech-nical advice will instill customer confidence in thetechnician’s abilities. This results in trust that repairs willbe performed properly and will build not only repeatbusiness but word of mouth references for the future.
An overview of the features and technologies used inthe DLP Projection and LCD Flat Panel product line isgiven below.
New Features and Technologies:• New User Interface - The TV operating
software has been redesigned for a speedyboot cycle and ease of use. The new userinterface and software will be discussed furtherat the end of the Introduction.
• Energy Star® 3.0 - All models meet EnergyStar 3.0 standards. Our LCD line consumesless energy than last year’s line of flat panels;while all of our DLP projection models con-sume significantly less energy than similar sizedflat panel TVs. In the Standard Mode, allmodels consume less than 0.5 Watts of powerin Standby.
• Internet Media Ready - This exciting featurelets you stream media content from a variety ofinternet content providers by way of a EthernetConnection. It is available in VLP41++models.
• Integrated Sound Projector - Introduced lastyear, Integrated Sound Projector is a built-in 16speaker array capable of producing Dolby®
Digital 5.1 channel surround sound withoutadditional audio equipment. It is now includedin all LCD Flat Panel models along with a digitalaudio input jack. The VLP41++ models’Immersive Sound TV adds Dual Driver Ex-tended Range speakers to deliver optimal
sound performance through a total of 18speakers.
• ISF ccc Advanced Calibration Mode - Allmodels have an additional ADV video settingthat can be adjusted to exacting standards.V41+ and VLP41++ models include twosettings (ADV1 & ADV2) to allow separateISF ccc calibrations for day and night use.
Video Features and Technologies:• Plush1080p® - 5th Generation The native
resolution for all DLP Projection and LCD FlatPanel models is 1080p. However they candisplay all video and many computer resolu-tions. For resolutions other than 1080p, thesignal must be reformatted in order to best fillthe TV screen. For a sharp, clear picture,Mitsubishi developed Plush1080p™ technol-ogy. Using 12 bit digital processing, it scalesthe picture precisely, with minimal side effects.And 1080i, currently the most common form ofHDTV signal, is spectacular at 1080p. Theconversion is precise, resulting in previouslyunachievable detail and clarity. In short,Plush1080p technology makes everything elselook better on a 1080p HDTV.
• Tru1080p™ Processing maintains 1080p highdefinition signals as 1080p from beginning toend. All 1080p HDMI™ and 1080p Broad-cast signals are passed through with no downconversions. The advancements of 1080p DLPtechnology for HDTV viewing deliver over twomillion pixels to you on-screen for a full and true1920 x 1080 resolution. With Mitsubishi 1080pDLP HDTVs, you can experience the best thathigh definition has to offer.
• Color 4D Video Noise Reduction usesadvanced algorithms to better identify videonoise from fine detail and correct the signalrather than distort it. Video noise is caused bydistortions in the video signal and makes thepicture look grainy or snowy. As signal resolu-tions improve with the introduction of DVD,
III
digital cable/ satellite and HDTV, the loss ofsharpness produced by most noise reductioncircuits becomes more noticeable. Mitsubishi’sadvanced 4D Video Noise Reduction correctsthe image in four dimensions: horizontally,vertically, within each frame and across multipleframes to provide an image that is crystal clearand extraordinarily detailed.
• 6-Color Processor™ Mitsubishi’s 6-ColorProcessor produces brighter colors, a widerrange of colors and whiter whites.
• PerfectColor™ is an exclusive Mitsubishifeature that provides the ability to adjust theintensity of six separate colors independently ofeach other and separately for every input.PerfectColor is much more powerful thanconventional color intensity control, which canonly increase or decrease the intensity of allcolors at the same time. While not new for thisyear, PerfectColor works in conjunction withPerfecTint™ to provide the user with the mostcolor control ever.
• PerfecTint™ is another exclusive Mitsubishifeature. It provides the ability to adjust the tintof six separate colors independently of eachother and separately for every input.PerfecTint™ is much more powerful thanconventional color tint control, which can onlyshift the tint of all colors at the same time.
• DeepField™ Imager constantly adjustsbrightness and contrast for optimum settings inall areas of the picture. It can even optimizecomplex scenes containing both dark and brightareas. DeepField™ Imager analyzes 135sectors of the picture in real time. It determinesthe optimum blend of contrast and brightnesssettings within the picture using advancedMitsubishi algorithms. Based on picture analysisit dynamically adjusts for areas that are too highor low in contrast and/or too dark or brightdisplaying the best balanced picture in everyscene.
• Sharpedge™ is an edge-definition signalprocessing system. It enhances horizontal andvertical edges for stunning picture precision.
• Video Modes: Brilliant / Bright / Natural /Game / ADV The five picture video modescan be used to adjust for optimum viewing indifferent room lighting and gaming applications.All modes are accessible via the VIDEO keyon the remote control.
• Side and Rear HDMI™ 1.3a InputsHDMI (High Definition Multimedia Interface) isan uncompressed, all-digital audio/videointerface. HDMI provides an interface betweenan audio/video source, such as a set-top box,DVD player, or A/V receiver and the TV overa single cable. These inputs accept digital 480i,480p, 720p, 1080i, and 1080p video signalsplus PCM digital stereo signals. The HDMIinputs can also accept a variety of PC signalsand resolutions. These inputs support HDMI1.3 Deep Color (up to 36 bits), the x.v.Colorextended color gamut and the use of CECcontrol signals. Mitsubishi recommends theuse of category 2 HDMI cables, also calledhigh-speed HDMI cables, to connect HDMI1.3 source devices.
• x.v.Color™ Advances in the display technolo-gies used by Mitsubishi greatly expand ourTV’s color gamut capabilities. Thanks to thesedisplay technologies, the display’s capabilitiesnow exceed those of the color signal. For thatreason Mitsubishi helped define the newstandard in high definition color. x.v.Colorenables more color than ever before for breath-taking realism and vivid, natural colors. Thisextended color gamut standard can support 1.8times as many colors as existing HDTV signals.This removes all limits on color selection.Mitsubishi’s 2009-2010 product line canprocess and display x.v.Color signals suppliedto either the HDMI or Component inputs.
IV
• Deep Color Another color performanceimprovement technology is referred to as DeepColor. As defined, Deep Color offers 10- bit,12-bit or 16-bit color depth. Using a higher bitrate allows more accurate reproduction of theoriginal color signal.
Additional benefits include…• Reduction or elimination of artifacts
known as posterization or contouring thatresult in color bands when gradual colorchanges occur.
• Less signal degradation during signalprocessing such as scaling and gamma.
• Increased contrast ratios and better colordetail.
Mitsubishi’s product line has 12-bit per color(36 bit) signal processing. Higher bit ratesresult in smoother color transitions.
• Dark Detailer™ (DLP only) is a Mitsubishiexclusive technology that uses a dynamicaperture system to add depth and texture to thepicture. Dark Detailer improves contrast ratioby more than four times, giving you a widearray of colors and shades that are essential foroptimal viewing of dark, dramatic scenes whilealso providing maximum brightness.
• Smooth120Hz™ (DLP Only) reduces motionblur in action scenes but may show pixelstructure during slower motion or in still images.When Off, standard picture smoothing process-ing is employed
• Lamp Power (DLP only) All DLP models havea 180W lamp with two modes of operation,Standard, 156W and Bright, 180W.
• 10 Bit LCD Panel (LCD Only) has the abilityto deliver 64 times the level of colors than 8-bitpanels. The result is a smoother transitionbetween colors.
• Wide Color Gamut CCFL Panel (LCD only)results in 25% more color than standard LCD.Reds and yellows become brighter and morevivid, and there are more available shades ofGreen, Cyan, and Blue. Mitsubishi uses a widerrange of phosphors in its backlight system for aricher, fuller spectrum of colors. To fully utilizethis added color range, Mitsubishi alsorecalibrated its color and brightness settings.The resulting picture quality adds realism toyellow sunlight, blue skies and crimson sunsets.
• Smooth120Hz™ Film Motion (LCD Only)makes fast-moving images appear smootherand more fluid, free from motion blur. Thisfeature doubles the traditional progressive scanframe rate and creates new frames of videobetween the traditional frames to smoothmoving images. Smooth120Hz Film Motionalso smooths film judder (image vibration) thatmay be present in film-based content such asmovies. The Diamond series includes VariableSmooth Film Motion™.
Other Features and Technologies• Easy Connect™ simplifies set-up and day-to-
day use. During set up, when an external deviceis plugged in, the TV recognizes each input as itis connected. The TV then prompts the user toname the device, and enters it into the DeviceMenu. The Device Menu then only shows usedinputs.
• CEC Control Signals - Mitsubishi’s newNetCommand for HDMI 1.3a uses industrystandard CEC control signals to provide controlof other compatible devices .
• NetCommand® IR - This exclusive Mitsubishifeature provides the user with a true one–remote control home theater system for analogproducts. NetCommand IR® provides on-screen control of analog-connected productssuch as your AV receiver, DVD player, satellite
V
receiver, and VCR. To set it up, you simply“tell” the television what products are con-nected and “teach it” their IR (infrared) com-mands. The TV will then take control, eliminat-ing the coffee table clutter of remote controls.
• USB Input - For viewing photographs up to 5mega pixels using a USB memory card.
• Wired IR Input provides a wired connectionfor control from an external device.
• 3D Ready (DLP Only) This feature allows theability to be immersed in your favorite videogame, movie or sporting event. As more contentbecomes available in 3D, this functionality willdevelop into one of the most exciting HDTVexperiences. The 3D Glasses Emitter jack onthe back panel outputs timing pulses for theoptional 3D glasses that are used when viewing3D programmed content.
• AMX Device Discovery interfaces the TVwith an AMX Controller to make it simpler andfaster than ever to program and control devicesalmost immediately upon plug-in.
• RS 232C allows external RS-232C controlcommunication.
Reliability and Serviceability Technologies• Reduction in the number of PWBs. The main
chassis is made up of only the PWB-POWERand PWB-MAIN. Note: LCD models thathave Internet Connectivity have two moreboards, PWB-ML POWER and PWB-NET/ML.
• The number of screws in both the cabinet andchassis construction have been reduced againthis year.
• The different types of screws have beenminimized.
• Mirror Area Access Portholes have beencarried over to simplify cleaning.
• 82” Rear Mirror Access Panel• Electronic geometry correction includes top
and bottom correction for 16:9 shaped picturesand side correction for displaying 4:3 shapedpictures (starting with V39).
• Engine replacement procedure is simplifiedby reducing the number of screws used in theDuct Assembly.
• LED diagnostics includes a “history log” toaid in identifying the cause of intermittentproblems (starting with V39).
• Color Filter Wheel is replaceable (startingwith V39).
• Optical Lens is replaceable (starting withV41).
• All Electrical Connectors lock in place toprevent loose connections.
VI
VLP41 VLP41+ VLP41++Base Features: All VLP41 Features Plus: All VLP41 & VLP41+ Features Plus:• 16-Speaker - 32W Total Power • High Gloss Finish • 16+2 Speaker – 52W Total Power Integrated Sound Projector • iSP Calibration Microphone Integrated Sound Projector• Digital Audio Input (Coaxial) • NetCommand® • Dual Driver Extended Range Sound• Variable Subwoofer Output • Wired IR Input • High Gloss Black Chrome w/Blue Light Accent• UltraThin™ Frame • Variable Smooth120Hz™ Film Motion • Internet Media Ready• JADE Activity-Based User Interface • PerfecTint & DeepField™ Imager • Plush1080p™ 18-bit Video Processing• Smooth120Hz™ Film Motion • ISFccc Advanced Video Adjustments• Clear Contrast Panel • RS-232C• Wide Color Gamut CCFL Backlight • AMX® Device Discovery• Plush1080p™ 12-bit Video Processing• Exclusive 6-Color Processor™ • 4 HDMI™ 1.3a Inputs w/CEC Supports Deep Color & x.v.Color™ • PerfectColor™ & SharpEdge™ • Advanced Video Calibration • Easy Connect™ • USB Media Input: Photos & Music • Detachable IEC Power Cord • Energy Star® 3.0 Qualified
LCD Flat Panel Feature Matrix
V41C & V41 V41+Base Features: All V41C & V41 Features Plus:• JADE Activity-Based User Interface • ISFccc Advanced Video Adjustments• Advanced Video Calibration • Dark Detailer™• Plush1080p™ 12-bit Video Processing • PerfecTint™• DeepField™ Imager and SharpEdge™ • NetCommand®• UltraThin™ Frame • RS-232C• Smooth120Hz™ • AMX Device Discovery• 3D Ready • USB Media Input: Photos & Music• 3 HDMI™ 1.3a Inputs w/CEC: Supports Deep Color™ & x.v.Color™
• 4 HDMI™ 1.3a Inputs w/CEC: Supports Deep Color™ & x.v.Color™
• Exclusive 6-Color Processor™ • Perfect Color™ • Easy Connect™ • Energy Star® 3.0 Qualified
DLP Projection Feature Matrix
2009-2010 DLP & LCD Product Line Feature Matrix
VII
LT-40151 VLP41 25.1" 26.4" 36.7" 2.9" 12.9" 52.9 lbsLT-40153 VLP41+ 25.1" 26.4" 36.7" 2.9" 12.9" 52.9 lbsLT-46151 VLP41 28.1" 29.4" 42" 2.9" 12.9" 62.4 lbsLT-46153 VLP41+ 28.1" 29.4" 42" 2.9" 12.9" 62.4 lbsLT-46249 VLP41++ 28.1" 29.4" 42" 3" 12.9" 62.4 lbsLT-52151 VLP41 31.5" 32.8" 47.7 3.5" 12.9" 80.9 lbsLT-52153 VLP41+ 31.5" 32.8" 47.7 3.5" 12.9" 80.9 lbsLT-52249 VLP41++ 31.5" 32.8" 47.7 3.6" 12.9" 80.9 lbs
Dimensions - LCD Flat Panel Models
WIDTH DEPTH DEPTH w base
WEIGHT w baseMODEL CHASSIS HEIGHT HEIGHT
w base
MODEL CHASSIS HEIGHT WIDTH DEPTH WEIGHTWD-60737 V41 36.7" 53.9" 14.4" 64.9 lbsWD-60C9 V41C 36.7" 53.9" 14.4" 64.9 lbsWD-65737 V41 39.5" 58.2" 15.3" 72.2 lbsWD-65837 V41+ 39.5" 58.2" 15.3" 72.2 lbsWD-65C9 V41C 39.5" 58.2" 15.3" 72.2 lbsWD-73737 V41 43.6" 65.2" 17.5" 92.8 lbsWD-73837 V41+ 43.6" 65.2" 17.5" 92.8 lbsWD-73C9 V41C 43.6" 65.2" 17.5" 92.8 lbsWD-82737 V41 48.5" 73.2" 22.7" 139.7 lbsWD-82837 V41+ 48.5" 73.2" 22.7" 139.7 lbs
Dimensions - DLP Projection Models
2009-2010 DLP & LCD Product Line Dimensions
VIII
New User Interface
Mitsubishi’s 2009-2010 product line has been designedto be easier than ever for the customer to operate. Theentire TV user interface has been simplified including:
• The Remote Control• The Front (or Side) Panel Controls• Front LEDs and Operational Indications• The TV Operating Software
While the improvements in the customer side of the in-terface will make operation easier, it also means thereare changes in the service interface. The changes willrequire technicians that are used to servicing previousyear models to become familiar with the differences. Thissection will give an overview of the differences.
Remote ControlA new Remote Control is being introduced this year. Itis smaller, lighter and has fewer buttons than previousversions. Some of the buttons for lesser used functionshave been eliminated. However, they are still acces-sible by using a clever two button procedure. Somebuttons now use icons to indicate their function and otherbuttons have been renamed to give their use a betterdescription. The new remote is shown in Figure 1.
Functions that are not assigned specific buttons on theremote are accessed by first pressing the MORE but-ton. When the MORE button is pressed, the TV will
Figure 1: New Remote Control
IX
display the MORE Menu indicating the functions as-signed to each key on the numeric keyboard of the re-mote. The functions assigned will vary according to thedevice selected to control (VCR-CABL / SAT / TV /DVD / AUDIO). The MORE Menu for the TV modeis shown in Figure 2.
For instance, if a customer wants to adjust the pictureshape (aspect ratio), he would first press MORE. TheMORE Menu will indicate to him that the number 0 isnow the FORMAT button. Each time he presses 0,much the same as in previous models, the picture willtoggle through the various picture formats such a Stan-dard, Narrow, Expand, Zoom, etc.
For service purposes, the MORE button is not used.
1 2 3
4 5 6
7CC
8VIDEO
9AUDIO
SLEEP 0
FORMAT MORE
Figure 2: MORE Menu for TV Mode
Remote Control For ServiceMany service functions and adjustments are accessedusing the Remote Control.
Service functions and adjustments can be performedusing either the old or new version remote. However,with several buttons having different names or labels,the technician will need to be familiar with the differ-ences to be able to interchange between the two.
The remote buttons associated with service that havebeen changed are shown in Figure 3 with the old but-tons’ name in parenthesis. For full remote instructions,refer to the Owner’s Guide for TV operation and theService Manual for service functions and adjustments.
ACTIVITY(INPUT or DEVICE)
LAST(QV)
PAGE UP(AUDIO)
PAGE DOWN(VIDEO)
NEW BUTTON NAME(OLD BUTTON NAME)
BACK(EXIT)
Figure 3: (Old) and New Button Names forService Functions and Adjustments
X
Front (or Side) Panel ControlsLike the remote control, the front (DLP) or side (LCD)panel controls on the 2009-2010 TV line-up have beensimplified. Fewer buttons and new terminologies willaffect the service technician in the same way the changesin the remote have.
An example of the controls on last year’s front panel iscompared with an example of this year’s front panel inFigures 4A & 4B.
Figure 4B: 2009-2010 (New) Front Panel Controls
Figure 4A: 2008-2009 (Old) Front Panel Controls
- CH + FORMAT
ENTER
- VOL +
MENU CANCEL
MENU GUIDE INPUT SYSTEMRESET
- CH + ACTIVITY
ENTER
- VOL +
This change impacts the following service functions:• System Reset• A/V Reset• Front Panel Unlock• Self Diagnostics (Error Code) Activation
Table 1 lists both the old and new service function acti-vation methods.
FUNCTION OLD METHOD NEW METHODSYSTEM RESET Press SYSTEM RESET button Press and hold POWER button for 8 seconds.
A/V RESET Press FORMAT & GUIDE at the same time. Press ACTIVITY & VOL- at the same time and hold for 8 seconds.
FRONT PANEL UNLOCK Press MENU button and hold for 8 seconds. Press ACTIVITY button and hold for 8 seconds.
ERROR CODE ACTIVATION Press INPUT & MENU at the same time and hold for 8 seconds.
Press ACTIVITY & CHAN- at the same time and hold for 8 seconds.
Table 1: Old/New Service Function Activation Methods
XI
Front LEDs and Operational IndicationsThe front LED Indicators are also different. We nowuse only one (3 color) STATUS LED in place of thethree LEDs ( DLP) or two LEDs (LCD & LASERVUE).
POWERSTATUS
POWERTIMERSTATUSLAMP -----
STATUS ConditionOff Off (standby)Green Power OnSlow Blink Green Power On Timer is setFast Blink Green (20 seconds) > On Booting (after POWER button is pressed)Blink Green (80 seconds) > Off Power Off (Cooling fan still working, 80 sec)
STATUS ConditionRed Lamp FailureYellow TV Too HotSlow Blink Red TV May Require ServiceSlow Blink Yellow Lamp Door Open or No Lamp Installed
NORMAL INDICATIONS
ABNORMAL INDICATIONS (For details perform Self Diagnostics procedure.)
Indications of the TV’s operational status have changedwith the LEDs. See Figures 5A & 5B for details of thevarious normal and abnormal indications for the old andthe new DLP models.
Figure 5B: 2009-2010 (New) LED Indications
Figure 5A: 2008-2009 (Old) LED Indications
POWER/TIMER STATUS LAMP ConditionOff Off Off Off (Standby)
Fast Blink Green Off Off Booting (40 - 60 seconds after AC applied)
Off Off Green Blink Power Off (Cooling fan still working, 90 sec)
Green Off Off Power OnSlow Blink Green Off Off Power On Timer is set
POWER/TIMER STATUS LAMP ConditionOff Yellow Off TV Too HotOff Off Blink Yellow Lamp Door OpenOff Off Red Lamp FailureOff Blink Red Off Fan StoppedOff Red Off TV May Require Service
NORMAL INDICATIONS
ABNORMAL INDICATIONS (For details perform Self Diagnostics procedure.)
XII
TV Operating SoftwareThe TV Operating Software, including the customermenu system, is new. While intuitive to use, some dif-ferences in terminology, navigation and interaction maybe noticed.
In order to meet Energy Star requirements of less than1.0W power consumption in the Standby mode, the op-erating software is not loaded (boot-up) until after aPower-On command is given. While the Low Powerfeature has been offered in the past, it was not well re-ceived by consumers because of the extra time neededfor boot-up, over 60 seconds in some models.
The boot cycle for the new operating software is a scant21 seconds, a period of time even the most impatienttelevision viewer can learn to deal with, especially inlight of the energy savings.
This leads to another item the technicianmay not be used to seeing on a MitsubishiTV, an Hour Glass icon. Rather than load-ing all menus and feature controls each time
the TV is powered on, they are loaded into memoryonly on demand (Activity Based). That means the firsttime a menu selection is made, there is a small time de-lay while the menu data is retrieved. During this briefperiod, the Hour Glass icon is displayed. After a menuhas been selected one time, there is no delay if the menuis selected a second time.
There are other timing differences included in the newsoftware. Shown below are timing comparisons of theV39 and V41 AC Connected / Power-On, NormalPower-Off and Power-On after loss of AC while hot.There are similar differences in the VLP39 and VLP41without the lamp cooling requirements.
Figure 6: AC Connected / Power-On
Figure 7: Normal Power-Off
Power-On CommandAC Connected
2s 10s
V39 Audio Video
Welcome Screen
0s 16s 21s
V41 Video & Audio
43s
(System Booting)
(System Booting)(Ready to Receive Power-On Command)
Power-Off CommandMitsubishi Logo3s Lamp Off 80s Lamp Cooling Stand by
V39
300s DM still ON Stand by
V41
TV Can not be turned on during this period
60s Blanking (Lamp still ON)
Figure 8: Power-On After Loss of AC While Hot
Power-On Command
2s 10s
V39 Audio Video Out
0s 21s 76s (Typ)
V41 Audio Video Out(Ready to Receive Power-On Command)
80s
& Lamp Cooling)(System Booting
(System Booting & Lamp cooling)
AC-Plug in to Stand By
Part 1 Page 1-1
Part 1 - DLP
Part 1 - Chapter 1Service Adjustments & Data Transfer
SERVICE ADJUSTMENTSThere are 3 Service Adjustments and Six Data Transfer Functions
Electrical Service Adjustments (there are no mechanical adjustments)• Horizontal and Vertical Centering Adjustment• Index Delay Adjustment• Geometry Alignment
Data Transfer Functions• Restore Engine Data From Backup• Restore Geometry Data From Backup• Restore Index Delay• Save Engine and Geometry Settings To Backup• Backup ISF Settings• Restore ISF Settings
CAUTION: Failure to follow data transfer procedures exactly can cause a complete loss of data.
Test Equipment and Test Patterns• Remote Control• Internally generated Test Patterns• No external test equipment or pattern generators are required.
Service ModeThe Service Mode is used for all Service Adjustments and Data Transfer Functions.Service adjustments can only be performed using the remote control.
1. Activating the Service Mode1. Press the <MENU> button on a remote control. (The “MENU” display will appear.)2. Press the buttons <2-4-5-7>. (The Service Mode On Screen Display will appear.)If no display appears, press <BACK> and repeat steps 1 and 2.
Service Mode <MENU> <2-4-5-7>
SERVICE
Function TVMAdjustment 1. HVPOS -3 Data (HPOS)
4 Data (VPOS)
Part 1 Page 1-2
Part 1 - DLP
2. Test Pattern ActivationWhen in the Service Mode, press Play < > to activate the internal test patterns (no indication will bedisplayed initially). Use Fast Forward < > and Rewind < > to select a specific pattern.Examples:
3. Adjustment FunctionService adjustments are performed in the TVM mode. No other Adjustment Functions are available.
4. Adjustment SelectionUse the Page Down < > button to select a specific electrical adjustment, i.e. “1.HVPOS.”
5. Adjusting DataAfter selecting an adjustment item, use the Navigation < > buttons to perform the adjustment.
6. Saving DataPress <ENTER> to save the adjustment data. The menu display will turn red for approximately one second.Note: If the circuit adjustment mode is terminated without pressing <ENTER>, changes in adjustment dataare not saved.
7. Data Transfer & Geometry MenuWhile in the Service Mode, press the <0> button to activate the Data Transfer & Geometry Menu.
Data Transfer & Geometry Menu <MENU><2-4-5-7><0>
RESTORE ENGINE DATA FROM BACKUPRESTORE GEOMETRY DATA FROM BACKUPMANUAL GEOMETRY ALIGNMENTRESTORE INDEX DELAYSAVE ENGINE AND GEOMETRY SETTING TO BACKUPBACKUP AND RESTORE IS F SETTINGSRED ONLY AND GREEN ONLY
Part 1 Page 1-3
Part 1 - DLP
Horizontal and Vertical Position Adjustment1. Enter the Service Mode <MENU><2-4-5-7> .2. Select the Geometry Test Pattern shown below < >< > x2.3. If necessary, select the adjustment, “1.HVPOS” < >.
4. After selecting the HVPOS adjustment item, use the Navigation < > buttons to center the display.• If a Up/Down < > button is pressed, the vertical position and VPOS adjustment data changes.• If a Right/Left < > button is pressed, the horizontal position and HPOS adjustment data changes.
5. Press <ENTER> to save the adjustment data.
Index Delay Adjustment - (Perform after Color Wheel Replacement)1. Enter the Service Mode <MENU><2-4-5-7> .2. Select the Ramp Pattern shown below < >< > x3.3. Select the adjustment, “60.IDL” < >.
4. After selecting the IDL adjustment item, use the Navigation < > buttons to adjust the Ramp Patterncolorbars so they are smooth and solid. HINT: The data value is typically in the mid 30’s.
5. Press <ENTER> to save the adjustment data.
TVM
60.IDL 35
Data
AdjustmentSERVICE
TVM
1.HVPOS -34
Data (HPOS)
AdjustmentSERVICE
Data (VPOS)
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Part 1 - DLP
Manual Geometry Alignment1. Activate the Service Mode <MENU><2-4-5-7>. From the Service Menu, press the <0> button. The Data
Transfer & Geometry Menu will appear.2. Use the < > buttons to select “MANUAL GEOMETRY ALIGNMENT” and press <ENTER>.
The Manual Keystone Geometry Alignment Pattern will appear. See below.Note: To remove all geometry correction, while the Geometry Alignment Pattern is displayed, press <1> then
<ENTER>. This will null all correction data. Then re-enter the Manual Geometry Alignment mode byrepeating step 2.
Note: To restore the original factory correction data, select “RESTORE GEOMETRY DATA FROM BACKUP” andpress <ENTER>.
Cursor +
Adjustment Points (16 Total)
Align Cursor + Flush With Bezel Edge
+
Phase 1 - 16 Point Geometry Alignment1. 16 Adjustment Points are indicated by white dots around the edge of the raster. The adjustment position is
indicated by a + cursor.2. Starting from the upper left corner, use the < > buttons to align the + at each point in a straight line,
flush with the bezel as a reference. See example above.Note: Only the cursor will move. The Geometry Pattern will not change.
3. After adjusting each point, use the < > button to shift the cursor to the next point clockwise and repeatuntil all 16 points have been adjusted.
4. After all 16 points are adjusted and the cursor is returned to the original starting point, press <ENTER>.Correction will be automatically calculated and saved and the Manual Geometry Alignment will be ended.
5. Press <ENTER> to re-activate the Manual Geometry Alignment. The geometry pattern will appear with thecorrections applied.
Data Transfer & Geometry Menu <MENU><2-4-5-7><0>
RESTORE ENGINE DATA FROM BACKUPRESTORE GEOMETRY DATA FROM BACKUPMANUAL GEOMETRY ALIGNMENTRESTORE INDEX DELAYSAVE ENGINE AND GEOMETRY SETTING TO BACKUPBACKUP AND RES TORE ISF S ETTINGSRED ONLY AND GREEN ONLY
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Part 1 - DLP
Phase 2 - 4:3 and 16:9 Alignment1. With the Manual Geometry Alignment activated, press < > to enter the 4:3 Alignment Mode. The
pattern elow will be displayed.Note: Pressing < > will toggle between the 4:3,16:9 (top & bottom) and 16 Point Geometry Alignment modes.
2. In the 4:3 Alignment Mode, continuing to press < > will cause the geometry pattern to be displayedwith 11 different preset amounts of correction. Continue pressing < > or < > to cycle through the 11patterns until you find the one with the straightest Blue 4:3 Lines. It may help to count the patterns asyou cycle through them. When you find the pattern with the straightest Blue 4:3 Lines, press < >. TheTop 16:9 Alignment Mode will then be activated as indicated by the Top Red 16:9 Line.
4:3 MODE
Select Straightest Blue Lines
3. In the Top 16:9 Alignment Mode, continuing to press <uu> will cause the geometry pattern to be displayedwith 15 different preset amounts of correction to the Top Red 16:9 Line. Continue pressing < > or < >to cycle through the 15 patterns until you find the one with the straightest Top Red 16:9 Line. Again, countthe patterns as you cycle through them. When you find the pattern with the straightest line, press < >.The Bottom 16:9 Alignment Mode will then be activated as indicated by the Bottom Red 16:9 Line.
4:3 MODE
Select Straightest Red Line (Top)
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Part 1 - DLP
4. In the Bottom 16:9 Alignment Mode, continuing to press < > will cause the geometry pattern to bedisplayed with 10 different preset amounts of correction to the Bottom Red 16:9 Line. Continue pressing< > or < > to cycle through the 10 patterns until you find the one with the straightest Bottom Red16:9 Line. Again, count the patterns as you cycle through them. When you find the pattern with thestraightest line, press <ENTER> to exit and save the 4:3 and 16:9 data.
5. Select the Geometry Test Pattern (See HVPOS). If Geometry is acceptable, press <BACK> to quit. To touch-up the raster geometry, proceed.
4:3 MODE
Select Straightest Red Line (Bottom)
Phase 3 - Geometry Touch-up Alignment1. Enter the Manual Geometry Alignment mode.2. Use the < > or < > button to shift the cursor to the point needing correction.3. Use the < > buttons to indicate the direction and amount of correction necessary at the particular
point. Note: Only the cursor will move. The Geometry Pattern will not change.4. Press the <INFO> button to apply the correction. The Geometry Pattern will now show the correction.5. Repeat steps 2, 3 and 4 as needed.6. Press <ENTER> to save your changes. The Manual Geometry Alignment will be terminated.
Part 1 Page 1-7
Part 1 - DLP
DATA TRANSFERService Data is duplicated and stored in separate EEPROMs in two locations.
• PWB-MAIN - Working data for TV operation• OPTICAL ENGINE - Backup data
The Optical Engine also includes data for the Color Wheel Index Delay setting determined at the factory.
Procedure:1.Enter the Service Mode <MENU><2-4-5-7> Select the Data Transfer & Geometry Menu <0>
Note: Besides MANUAL GEOMETRY ALIGNMENT, there are six data transfer functions.• RESTORE ENGINE DATA FROM BACKUP - copies backup factory adjustments HVPOS, White
Balanceand Index Delay from the Optical Engine to the PWB-MAIN.• RESTORE GEOMETRY DATA FROM BACKUP - copies backup factory Geometry Alignment data
from the Optical Engine to the PWB-MAIN.• RESTORE INDEX DELAY - copies factory Index Delay Adjustment data from the Optical Engine to
the PWB-MAIN.• SAVE ENGINE AND GEOMETRY SETTING TO BACKUP - copies all working data from the PWB-
MAIN into backup memory on the Optical Engine.• BACKUP AND RESTORE ISF SETTINGS - (V41+ and V41 s/w V41 011.01 and later only) - allows
the ISF (ADV) video settings to be backed up and restored using an external USB memory device.See the following page for instructions.
• RED ONLY AND GREEN ONLY - (V41+ and V41 s/w V41 011.01 and later only) - displays the videoin red or green only.
2.Use the < > buttons to select the item and press <ENTER>.3.Follow on-screen instructions if given.3.Press <MENU> to quit.
After Engine Replacement:1.Restore Index Delay.2.Save Engine and Geometry Setting to Backup
After PWB-MAIN Replacement:1.Restore Engine Data From Backup2.Restore Geometry Data From Backup.3.Restore ISF Settings From Backup (Only if backup USB memory device is available) See following page..
Data Transfer & Geometry Menu <MENU><2-4-5-7><0>
RESTORE ENGINE DATA FROM BACKUPRESTORE GEOMETRY DATA FROM BACKUPMANUAL GEOMETRY ALIGNMENTRESTORE INDEX DELAYSAVE ENGINE AND GEOMETRY SETTING TO BACKUPBACKUP AND RESTORE ISF SETTINGS
RED ONLY AND GREEN ONLY
Warning - Only use "SAVE ENGINE AND GEOMETRY SETTING TO BACKUP" after Optical Engine replacement.
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Backup / Restore ISF SettingsIf the customer has calibrated the ISF (ADV) video settings, the settings data can be backed up on a USBmemorydevice. If the settings are lost due to a Reset or Initialization procedure, PWB-MAIN replacement or other reasons,the settings data can be restored.
Backup ISF Settings.1. Insert a empty USB memory device into the USB slot.2. Press the <MENU> button on the remote control. The Customer Menu will appear.3. Press the <2-4-5-7> buttons. The Service Menu will appear.4. Press the <0> button. The Data Transfer and Geometry Menu will appear.5. Use the < > buttons to select “BACKUP AND RESTORE ISF SETTING” and press <ENTER>.6. Use the < > buttons to toggle to "Backup ISF Settings to USB” (Default).
7. While "Backup ISF Settings to USB” is displayed, press <ENTER>. The screen will flash the message"Backup completed."
8. Remove the USB memory device and store it in a safe place.9. Press <MENU> to exit.
Restore ISF Settings.1. Insert the USB memory device with the backup data into the USB slot.2. Press the <MENU> button on the remote control. The Customer Menu will appear.3. Press the <2-4-5-7> buttons. The Service Menu will appear.4. Press the <0> button. The Data Transfer and Geometry Menu will appear.5. Use the < > buttons to select “BACKUP AND RESTORE ISF SETTING” and press <ENTER>.6. Use the < > buttons to toggle to “Restore ISF Settings From USB.”
Warning: DO NOT press <ENTER> while "Backup ISF Settings to USB" is displayed. The data on theUSB will be overwritten and lost.
7. While “Restore ISF Settings From USB” is displayed, press <ENTER>. The screen will flash themessage "Restore completed." The TV will then turn off.
8. Remove the USB memory device before turning the TV back on.
BACKUP/RESTORE ISF SETTING MENU
Backup ISF S et t ings t o USB WARNING Do Not Press ENTER
BACKUP/RESTORE IS F SETTING M ENU
Rest ore IS F Set t ings Fro m USB
Rest ore co mplet ed.
BACKUP/RESTORE ISF SETTING M ENU
Backup ISF S et t ings t o USB
BACKUP/RESTORE ISF SETTING MENU
Backup ISF S et t ings t o USB Backup co mple t ed.
Part 1 Page 2-1
Part 1 - DLP
Part 1 - Chapter 2Down-to-1
High Speed Troubleshooting
Troubleshooting today’s products is usually limited toidentifying a defective circuit board or sub-assembly.Down-to-1 troubleshooting procedures are developedto:
• Require a minimum amount of time.• Require a minimum amount of test equipment.• Make an accurate diagnosis 9 out of 10 times.
User Level Resets and InitializationAs in previous models, many symptoms (customer gen-erated or intermittent) may be resolved by performinga reset or initialization. Many of these functions are avail-able to the customer. Asking the user to perform theseresets may eliminate the need for a service call. If the
exact nature of a symptom is unknown, it’s best to havethe customer perform the most common procedures ina specific order to minimize the number of settings thatwill be affected. That order is:
1) System Reset2) A/V Reset by Input3) A/V Reset all Inputs4) Initialize (User Level)
Refer to the Reset/Initialization Chart shown in Table 2-1 for all procedures. Of course, if a user level resetdoes not correct the problem, it may be necessary toperform the Service Level Initialization as part of a ser-vice call.
User Level Initialization<MENU><1-2-3>
RESET SERVICE MENUWARNING: RESET SYSTEM DEFAULTSResets all settings back to default.
To reset system defaults, press ENTER.Press EXIT or MENU to exit.
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Part 1 Page 2-2
Reset Name When to use How to use Resulting ActionRemote Control TV Layer Reset
Returns the remote control TV layer to normal operation.
1) 2) 2) 3) 3)
Set the slide switch to TV position.Press and hold the <POWER> button until it flashes twice then release the button.Enter the code <0-0-9-3-5>.
Once the valid code has been entered and confirmed, the remote contrrol has been reset.
Remote Control TV Volume/Mute functions
Returns the volume and mute functions of the remote control to TV volume and mute for TV, Cable/Sat, VCR and DVD layers after the Audio Lock for AV Receiver feature has been used.
1) 2) 2) 3)
(1) Set the slide switch to TV position.(2) Press and hold the <POWER> button until it flashes twice then release the button.(3) Enter the code <9-9-3>< + >.
The remote will now operate the TV's volume and mute when the slide switch is in the TV, CABLE/SAT, VCR or DVD positions.
A/V Memory Reset by individual input
When the audio and or video settings for a single input seems to be incorrect.
All Audio and Video settings for the individual input are reset except for the Listen To, Language, Balance and Closed Caption settings.
A/V Reset, all inputs
To reset audio and video adjustments for all inputs to the original factory settings.
All Audio and Video settings are reset to the factory default settings. No other menu options are changed.
System Reset
To reset the TV when it does not turn on or off, does not respond to the remote control, front panel buttons or has other unusual symptoms.
TV Micro Re-boots. Note: The changes made during the current TV-On period may be lost. All other previous user settings are not lost.
Initialize User Level
To reset all customer settings except V-Chip
All customer menu options and A/V settings except V-Chip are reset to factory default.
Initialize - Service Level
To reset all customer settings All customer menu options and A/V settings are reset to factory default.
V-Chip Password Bypass
If V-Chip password is not known Password will be bypassed. If in the V-Chip menu, enter a new password.
Unlock Front Panel
To unlock the front panel if it has been locked in the V-Chip Menu.
Front Panel becomes operational. Other V-Chip settings not changed. Note: Cannot be performed while in the Low Power mode and the set is Off.
<MENU><2-4-7-0>. Highlight INITIALIZE and press <ENTER>
Press < > & <9> at the same time.
Press and hold the front panel <ACTIVITY> button for 8 seconds.
1) Select Input to be reset2) <MENU> --> Adjust --> Reset
While viewing the TV, press the front panel buttons <ACTIVITY> & <VOL > at the same time and hold for 10 seconds.
Press the <POWER> button on the front panel and hold it for 8 seconds.
Press <MENU><1-2-3><ENTER>
Table 2-1: Reset/Initialization Chart
Resets and Initialization
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Option MenuThe Option Menu is used for Service Level Initializa-tion. It also has other functions that can be useful indiagnosing a problem. To access the Option Menu:
1) Press <MENU><2-4-7-0>2) The Option Menu is displayed.
Figure 2-1 shows the Option Menu for V41 models.
The items listed in the Option Menu are:• INITIALIZE: Resets all user settings including
V-Chip settings and password and ADV (ISF)Video settings.
• POWER RESTORE: Allows the TV to beoperated by switching AC power. (A factoryfunction)
• PRODUCTION MODE – Defeats Auto InputDetection, activates all Inputs. (A factoryfunction)
• DIGITAL SIGNAL STRENGTH – Givesrelative signal strenght numerically 1~9 with 9the strongest. Select and press <ENTER> foradditional information.
• SOFTWARE – Current software version• TOTAL HOURS OF USE – Total time the set
has been On.
Digital Signal StrengthTo access information on digital signal reception:
1) Tune to a digital channel.2) Enter the Option Menu and scroll down to high-
light Digital Signal Strength.3) Press “ENTER”
The table in Figure 2-2 will be displayed. The mostimportant figure is the SNR (Signal to Noise Ratio). Theacceptable SNR depends on the type of signal:
• 8VSB (Air Broadcast) = 16 to 33• Cable 64 QAM = 22 to 35• Cable 256 QAM = 27 to 38
If the signal is fluctuating, the menu will indicate the num-ber of Correctable and Uncorrectable Errors as theyare encountered.
This information helps determine if a digital signal prob-lem is causing a symptom on the TV.
Option Menu<MENU><2-4-7-0>
InitializePower Restore OFFProduction Mode OFFDigital Signal Strength <1~9>NetCommand Software Vxx xxx.xxTotal hours of use 0
Figure 2-1: Option Menu
Digital Signal Strength Menu"Digital Signal Strength" <ENTER>
TunerFrequency(MHz) 749Signal Level <1~9>Modulation 8VSB AirCarrier Lock LockedSNR 29.09Correctable errors 0Un Correctable errors 0
Figure 2-2: Digital Signal Strength
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Part 1 Page 2-4
Figure 2-3: Front Panel (Location and Appearance Differs by Model)
LED IndicationsThe front panel Status LED provides an indication ofthe set’s operation and the possible cause of a malfunc-tion. If an abnormal condition is indicated, perform theSelf Diagnostics procedure.
Self DiagnosticsTo activate, press the front panel <ACTIVITY> &<CH
> buttons at the same time and hold for 5 seconds.
The STATUS LED will then flash denoting a two digitcode.
• The number of flashes indicates the value of theMSD (tens digit) of the Error Code.
• The flashing then pauses for approximately 1/2second.
• The LED then flashes indicating the value of theLSD (ones digit) of the Error Code.
• The Error Code is repeated a total of 5 times.Example: If the Error Code is “23”, the LEDwill flash two times, pause, and then flash threetimes.
Table 2-2: LED Indications
Error Codes, descriiptions and the most likely cause ofthe error are listed in Table 2-3.
Note: The TV must be in “Shut Down.” The LEDwill probably be indicating an abnormalcondition. If the TV is switched Off, AC isremoved, or a System Reset is performed, thecode automatically resets to “12” No Error.See the Error Code Log to retrieve a history oferrors.
Note: Use the front panel buttons, not the remotecontrol.
Note: If there is no response, the front panel may belocked by a V-Chip setting. To unlock, pressand hold <ACTIVITY> on the front panel for8 seconds.
LED Indication ConditionOff Off (standby)Green Power OnSlow Blink Green Power Off with Timer SetFast Blink Green (80 seconds) > Off Power Off (Cooling fan still working, 80 sec)
LED Indication ConditionRed Lamp FailureYellow TV Too HotSlow Blink Red TV May Require ServiceSlow Blink Yellow Lamp Door Open or No Lamp Installed
NORMAL INDICATIONS
ABNORMAL INDICATIONS (For details perform Self Diagnostics Procedure.)
- CH + ACTIVITY
ENTER
POWERSTATUS- VOL +
Part 1 Page 2-5
Part 1 - DLP
Table 2-3: Error Codes
Error Code Log<MENU><3-5-6-4>
***** PAGE (001/001) *****
CURRENT TIME: 01455 HOURS
LAMP TIME CODE STATUS00413 HRS 57 HAPPENED
00716 HRS 17 HAPPENED Press Up t o Previous Page
00905 HRS 66 HAPPENED Press Do w n t o Next Page
Press Right t o Top Page
Press Left t o Last Page
Press CANCEL t o Init ialize
Press M ENU t o Exit
Error Code LogThe Error Code Log can be used to retrieve the codefor an error that occurred in the past.
To access the Error Code Log: <MENU> <3-5-6-4>.
Figure 2-4: Error Code Log
Error Code Log Definitions - Refer to Figure 2-4:• PAGE - Current page number• CURRENT TIME - total hours of operational
use.• LAMP TIME - usage hours when the error
occurred.• CODE - the specific Error Code that occurred.• STATUS: HAPPENED - Indicates an error
was recorded.
Press <CANCEL> to erase the Log.Press <MENU> to exit.
Note: Lamp Cover errors (32) are not recorded.
Code Description Most Likely Cause12 No Error found
17Communication loss, TV Micro - Engine (3.3V-ENG-SDA & SCL) Loss of 12V from PWB-POWER to Engine
(Loose PE or PE2 connector). Engine Failure
Engine will not accept data (ASIC-READY signal from Engine is not detected).
32 Lamp cover is open. Lamp Cover Switch (Loose CD connector)Lamp turns Off while the TV is playing.Lamp failure Lamp Cartridge Failure(Lamp Enable signal from engine is lost)
36 Exhaust Fan failed. (Loose J4 connector)37 Engine (DMD) fan failed. (Loose J5 connector)38 Lamp temperature abnormally high. Poor Air Circulation (Loose J3 connector)39 DMD temperature abnormally high. Poor Air Circulation42 Sirocco fan failed (Lamp fan). (Loose J8 connector)
Check for disconnected DVI cable between PWB-MAIN and Engine.(Engine pulls DVI pin 14 Low)
48 PON-SHORT 3.3V or 5V switched supply short PWB-MAIN Failure
57 Ballast communication problem (ballast to chassis)
Loss of 340V from PWB-POWER to Ballast (Loose PL or CJ1 connector); Loss of communications between PWB-MAIN and Ballast (Loose FB or CJ3 connector).Ballast Failure
61 No LAMP-EN output from the engine to the ballast Bad Color Wheel (Loose J6 or J7 connector) Lamp did not turn on at P-ON sequence (Loose CJ4 connector)
(No Lamp inserted) No Lamp Inserted.(Disconnected cable between ballast and lamp) HV connection or lead wire to lamp.(Lamp-Enable goes to PWB-MAIN but not to Ballast) Lamp Cartridge Failure
66
44 DVI Cable unplugged
18
34
Engine Failure
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Part 1 Page 2-6
Advanced TroubleshootingOn rare occasions power-on problems can occur thateither cannot generate an Error Code or result in a mis-
Figure 2-5: Power-On Sequence Flow Chart
leading Error Code. In such cases, use the Power-OnSequence Flow Chart and Block Diagram to help diag-nose the problem. Refer to Figures 2-5 and 2-6.
Supply 12V to the Engine
Supply 340V to the Lamp Ballast
Send “ResetZ” signal “High”
Color Wheel starts to spin
“Lamp EN”detection
Low
Send “Lamp EN” to Lamp Ballast
Engine Sequence Chassis SequenceLamp Sequence
340V to the Lamp
BallastReceived “ResetZ”
Signal
DVI cable check
ShutdownCode 44
Retry 3 times?
No
Yes
ShutdownCode 61
Lamp Ignite
Low
“LampLit” return to Engine
Received “Lamp Litz”
Start Engine initialization
Send “ASIC Ready”
To chassis“ASIC Ready”
detection
High
Low
ShutdownCode 18
Send “I2C” Command to
Engine
Received “I2C” command
Send “I2C” acknowledge
“I2C”detection
ShutdownCode 17
Yes
Not acknowledged
NormalOperation
NormalOperation
NormalOperation
TV BOOTING (Status LED blinks
about 20sec)
REMOTE POWER ON
UART Communication
Ballast Check by
UART
ShutdownCode 57
“Lamp Litz”detection
“Lamp Litz” to TVMicro
Detect 5 times retry by engine
Auto Retry 2 times?
ShutdownCode 66
Lamp On
OK
FAIL
Yes
No
High
High
AC PLUG-IN
ShutdownCode 17
Engine check 12V
OK
FAIL
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Part 1 - DLP
Figure 2-6: Power-On Sequence Block Diagram
PWB PREAMP
PWB CONTROL
LE
2
7
PreAmp
LE22
LE1
2
PWB MAIN
TV uPCIC7A01
REMOTE
POWER ON
5VSL
PWB POWER
PD
2
PD
2
3.3VSL RegulatorIC9A04
BU3.3V RegulatorIC7A03
33
5VSL SUPPLY(STANDBY)
RELAY
340V* SUPPLY
12VS SUPPLY
33AC
340V*
RELAY
1111
PE2
1
PE
1
1010
22
PL
5
PS1
LAMP BALLAST
OPTICAL ENGINE
CJ1
1
CJ3
14
LAMP ENABLE
LAMP LITZ
3.3VSL
12VS
12VS
12VC
12VC
340V*
JC600
1220LAMP ENABLE
RESETZ
LAMP LITZ
RESETZ
LAMPLIT
LAMPLIT
21
FB
14
LAMP ENABLE
ASIC READY
ASIC READY 4
ENG_SCL
ENG_SDA
ENG_SDA
ENG_SCL 67
LAMP ENABLE
JC600
1220
214
67
ABU3.3V
DBU3.3V
31
98
98
34
34
* 340V uses Live Ground * 340V uses Live Ground
5DIM
5LAMPDIM-TX
14ENGINE ID
14ENGINE ID
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Part 1 Page 2-8
Part 1 Page 3-1
Part 1 - DLP
Part 1 - Chapter 3Disassembly
Back Cover Removal1) Remove screws (A) from the back cover.2) Remove the back cover from the TV.
CHASSIS REMOVAL & DISASSEMBLY
Chassis Removal1) Remove five screws (A), one side, four rear.2) Disconnect all cables connecting to the chassis.3) Slide the chassis out of the cabinet.
LAMPCOVER
A
A
A A
BACKCOVER
A 73" & 82" ModelsOnly
A
A
Side View
A
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Part 1 - DLP
Rear Terminal Cover Removal1) Remove nut (A) from the ANT input.2) Disconnect connector PG2 from the rear of the RS232C assembly (V41+ only).3) Remove screws (C) and (D).4) Remove the Terminal Cover from the chassis.
Power Supply Shield Removal1) Remove screw (A).2) Remove the Power Supply Shield
from the chassis.
PWB-POWER Removal1) Remove screws (B).2) Disconnect all cables from the
PWB-POWER.3) Lift the PWB-POWER from the
chassis.
PWB-POWER InstallationNOTE: The PWB-POWER shouldbe re-installed so the Heat Sink isopposite the Power Supply Shield.
CHASSIS REMOVAL & DISASSEMBLY (Continued)
A
PWBPOWER
SUPPLYSHIELD
POWER
B
SINKHEAT
D
C
D
A
(V41+)
PG2(Rear)
RS232C
Part 1 Page 3-3
Part 1 - DLP
Top Chassis Brackets RemovalNOTE: Removal of the Power Supply Shield and PWB-POWER is not required to remove the Top Chassis
Brackets.1) Remove screws (A).2) Disconnect all cables from the PWB-POWER.3) Lift the Top Chassis Brackets from the chassis.
CHASSIS REMOVAL & DISASSEMBLY (Continued)
PWB-MAIN Removal1) Disconnect all cables to PWB-MAIN.2) Remove screws (A) from the DVI
connector.3) Remove screws (B) from the Side
Terminals.4) Remove screw (C) from the Side
HDMI connector (V41+ only).5) Remove screws (D).6) Lift the PWB-MAIN out of the
chassis.
A
AATOP CHASSISBRACKETS
D
DVI
HD
MI
A
(V41+)C
B
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OPTICAL ENGINE ASSEMBLY - COMPONENT AND CONNECTOR LOCATIONS(Rear View)
OPTICAL ENGINE ASSEMBLY
PWB-BALLAST REPLACEMENT
Note: To remove the PWB-Ballast, it is not necessary to remove the Engine or Lamp Cartridge.1) Release the Latch to lift the PWB-BALLAST from the mounting bracket.2) Slide the PWB-Ballast out of the Engine Assembly.3) Disconnect connectors CJ1, CJ3 and CJ4, the HV Lamp connector.4) To reinstall, first connect the connectors. Then slide the PWB under the Retaining Hooks. Then press the
rear edge of the PWB down onto the guide pins to engage the latch.
LAMPCARTRIDGE
BALLAST
DMD FAN
J3THERMALSENSOR
J8SIROCCO
FANJ4
EXHAUSTFAN J5
DMDFAN
J9SMOOTHPICTURE
J10DYNAMIC
BLACK
J12DVI
OPTICALENGINE
PE2POWER
CJ1BALLAST CJ3
LAMPPOWERCONTROL
CDLAMPDOOR
SWITCH
DUCTASSEMBLY
LATCH
(HV To Lamp)CJ3
CJ1
CJ4RETAINING
HOOKS
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Part 1 - DLP
OPTICAL ENGINE REPLACEMENT
OPTICAL ENGINE ASSEMBLY REMOVAL1) Remove 3 screws (A) from the Optical Engine.2) Disconnect all cables to the Optical Engine Assembly.3) Slide the Optical Engine assembly out of the cabinet.
DUCT ASSEMBLY REMOVAL
Duct Assembly (Rear View)
Upper Duct Assembly Removal Procedure1) Loosen two screws (A) and remove the Lamp Cartridge.2) Disconnect the Exhaust and Sirocco Fan Connectors (J4
and J8) from the back of the Engine and loosen the wiringharnesses from the looms, refer to previous page forconnector locations.
3) Remove screw (B) from the top of the upper duct andrelease the latches shown in Duct Assembly (Top View)on the following page.
4) Remove the Upper Duct assembly from the OpticalEngine.
LAMPCARTRIDGE
BALLAST
A
DUCTLOWER
DUCTUPPER
LAMPCARTRIDGE
BALLAST
J12DVI
OPTICALENGINE
PE2POWER
CJ1BALLAST
CJ3LAMP
POWER CONTROLCDLAMPDOOR
SWITCH
A
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Duct Assembly (Top View)
DUCT INTERIOR COMPONENTS1) The Lower Duct (Top View) below shows the Duct Interior Components.2) The Upper Duct must be removed to replace the Lamp Door Switch PWB, Sirocco Fan, Exhaust Fan and
Thermal Sensor (1 screw).3) When replacing the Engine, transfer the Duct Interior Components from old Engine to the new Engine.Note: There are three Exhaust Fan Holders, one on the top and two on the bottom of the Exhaust Fan.Note: The Exhaust Fan must be installed so the Label is facing inside the Duct.Note: The Sirocco Fan must be installed so the Label is facing upwith the Flanges aligned with the Guide
Lower Duct (Top View)
OPTICAL ENGINE REPLACEMENT (Continued)
B
Latches
Latch
Latch
SIROCCO FAN(Label Facing Up)
THERMALSENSOR
EXHAUSTFAN
(Behind Lamp Housing)
EXHAUST FANHOLDERS (3)
(1 Top - 2 Bottom)
LAMP DOORSWITCH
PWB
(Label Facing Inside)
FLANGES AlignOnto GUIDE PINS
Part 1 Page 3-7
Part 1 - DLP
Lower Duct Rear Mounting Screw
Lower Duct Front Mounting Screw
LOWER DUCT REMOVAL1) Remove Upper Duct, Fans, Fan Holders, Thermal Sensor and Lamp Cartridge. See previous page.2) Remove the 2 screws (C) one in front and one in the rear of the lower duct.3) Carefully remove the lower duct from the Engine.
OPTICAL ENGINE REPLACEMENT (Continued)
C
DUCTUPPER
OPTICALENGINE C
DUCTLOWER
Part 1 Page 3-8
Part 1 - DLP
COLOR WHEEL REPLACEMENT
SYMPTOMS• Noise (Bad Motor Bearing)• Solarized Picture NOTE: Before replacing the Color Wheel, check the Index Delay Adjustment.
COLOR WHEEL REPLACEMENT PROCEDURECAUTION: This procedure should be performed in a dust free environment.Any dust entering into the color wheel chamber can cause abnormalities in the picture.1) Remove Engine Assembly and cover the projection lens to protect it from scratches.2) Remove the TOP DUCT.3) Remove the 2 screws (A) shown below.4) Disconnect the 2 connectors J6 & J7 shown below.5) Lift the top cover off of the color wheel chamber.
Color Wheel Cover and Connectors
6) Remove 3 screws (B) shown to the right.7) Use the metal Handle to lift the Color Wheel from the chamber.8) For installation, reverse the procedure above.CAUTION: Avoid touching or scratching the Color Wheel.NOTE: Do not twist the ribbon cable to J6 (the shiny silver
contacts must be facing up).9) After re-assembly, perform the Index Delay Adjustment de-
scribed in the Service Adjustments section.10) Pack the original color wheel the same way the replacement
part was sent to you to prevent damage in return shipping.
Color Wheel
COLORWHEELHANDLE
B
A
COVERCOLOR WHEEL
J6 J7
Part 1 Page 3-9
Part 1 - DLP
PROJECTION LENS REPLACEMENT PROCEDURECAUTION: Any dust or fingerprints in the optics can cause abnormalities in the picture.This procedure should be performed in a dust free environment.Wear lint free cotton or rubber gloves while performing this procedure.
1) Remove Engine Assembly.2) Remove screws (A) and rotate the Lens Collar off the Lens in the direction indicated while carefully
releasing the foam adhesive from the Lens.
PROJECTION LENS REPLACEMENT
A
COLLAR
3) Remove screws (B) from the Lens Mask and slide the mask off in the direction indicated.4) Lift out the Projection Lens.5) Install the replacement lens so the key is oriented towards the top as shown. For reassembly, reverse the
disassembly procedure. Use thread locker to secure screws (B).
KEY
LENS
B
LENSMASK
Remove
Part 1 Page 3-10
Part 1 - DLP
SCREEN ASSEMBLY 60”, 65” & 73” Models
Screen Assembly Removal and Replacement1) Open the front control panel door. (V41+ Only) Pull away Speaker Covers followed by Center Escutcheon.2) Remove three screws (A) (two screws WD-73837).3) Remove screws (B) around the rear edge of the screen betzel.
NOTE: Leave one screw secure at the top. Then support the assembly to prevent it from fallingwhile removing the remaining screw.
4) During re-assembly replace screws in their original locations.
A DOOR
B
B
B
B
B
73 INCH
B
B
B
B
B
65 INCH
B
B
B
B
B
60 INCH
SPEAKER COVERS(ORNAMENT LEFT & RIGHT)
CENTER ESCUTCHEON(ORNAMENT CENTER)
V41+
Part 1 Page 3-11
Part 1 - DLP
SCREEN ASSEMBLY 82” Models
Front Cover and Pedestal Removal1) Remove screws (A) around the bottom rear edge.2) Open the front control panel door and remove screws (B).3) Lift the Pedestal and Front Cover away from the front.
Screen Assembly Removal1) Remove screws (C) from the bottom front of the screen assembly..2) Remove screws (D) from the top rear edge of the screen bezel.
NOTE: Leave one screw secure at the top. Then support the assembly to prevent it from fallingwhileremoving the remaining screw.
A A B BFRONTCOVER
PEDESTAL
DD D
C
Part 1 Page 3-12
Part 1 - DLP
MIRROR REPLACEMENT
MIRROR REPLACEMENT - 60”, 65” & 73” Models1) To access the Mirror for replacement, remove the Screen Assembly (See Screen Assembly Removal).2) The Mirror slides down into the Left, Right and Bottom Brackets inside the cabinet.3) For 73” models, a Top Bracket is installed.3) Replacement Mirrors are shipped with instructions on preparing the new mirror for installation.
MIRROR REPLACEMENT - 82” Models1) To access the Mirror for replacement, remove screws (A) and lift away the Mirror Cover.2) The Mirror rests in place below the Mirror Cover.3) Replacement Mirrors are shipped with instructions on preparing the new mirror for installation.
SUPPORTBRACKETS
TOP BRACKET(73" Models)
A
MIRROR(Below Cover)
A
A
Part 1 Page 4-1
Part 1 - DLP
Part 1 - Chapter 4Circuit Block Diagrams
Power Control
5VSL
3.3VSL BU3.3V
ABU3.3V
DBU3.3V
TV MICROIC7A01
IR SENSOR
REMOTE
STANDBY ON 5VS
RELAY
AC (LINE)
STANDBY SMPS
MAINSMPS
18VS
12VS
340V
AC
AC (NEUTRAL)
LAMP BALLAST
1.8VS
1.2VS
2.5VS
3.3VS
DOUBLER CIRCUIT
CONTROLKSC0
KSC1
12V(To Engine)
FET Switch
DC-DC SuppliesMain Power Supply Lamp ControlDetails can be located on the following drawings:
Part 1 Page 4-2
Part 1 - DLP
Main Power Supply
PC9020
T9030
PS
1
3D9010
D9008
D9011
D9009
D9012 R9030
D9013
PWB POWER
18VS
12VS
5VSL
K9010
K9011
PL
1
5
C9017
C9018
T9010
F9000L
N
R9060
R9085
1
D9023 R90285
F900111
3
D9022 R9037
MainSMPS
RegulatorIC9010
FB
Vcc
Drain
StandbySMPS
RegulatorIC9030
FB
Vcc
Drain
R9021
R90226
ToLamp
Ballast
R9001
PE
1
MAIN-RELAY
AGND
Q9009
Q9008
REFIC9020
REFIC9031
2
F9003
2
3
45
67
PD
1011
89
12V
1
2
3
4
11
10
5
7
Live Cold
340V
ToOpticalEngine
D9031
D9026
F9002
Source
GND
To PWB Main
1
6
4
3
7
4
2
3
1
R9007
8
OCP
D9001
R9019 R9020
D9024D9020OCP 7
Drain
R9032
R9029
1
2
4
3
PC9010 R9034
R9031
R9011
R9016 R9012
R9013
R9033
43
5StartR9087 R9086
12
10
9
8
7
1
2
4
3
R9041
R9039
C9086
R9008
R9010
R9035
Part 1 Page 4-3
Part 1 - DLP
DC-DC Supplies
F9A01
PWB POWER PWB MAIN
18VS
12VS
Voltage DoublerD9A01, D9A02, Q9A11 30VSL
12VS
1.8VS
3.3VS
5VSL5VSL
18VS
PD
6
7
10
11
2
PD
6
7
10
11
2
30VSL
1.8VS
1.2VS
2.5VS
5VS
3.3VSL
Tuner
ASIC, Audio, CPLD, DM, SDRAM
DM
DM
Audio, PreAmp, TMDS, Tuner, USB
HDMI, LED, Pre-Amp
Source Used In Circuit
2.5VS Regulator
IC4G01
5
81
3.3VS ASIC, CPLD, DM, Flash ROM, HDMI, RS232, TMDS, TV uPC, UART
5VS
5VSSwitchFET
Q9A06
1
2
5
64
3.3VSL3.3VSL
RegulatorIC9A04
1 5
3 STBY-ONQ9A04Q9A05
2.5VS
ABU3.3VBU3.3V Regulator
IC7A031 5
ABU3.3V TV uPC
DBU3.3V
BU3.3V
3.3VS Regulator
Q9A01
5
6
7
8
3.3V-SS Regulator
IC6C028 1 3.3V-SS
1.8VS Regulator
Q9A02
5
6
7
8
A1.0V
1.0V1.0V RegulatorIC5A02
5
81
A1.0V Regulator
IC5A03
5
81
1.2VS1.2VS
RegulatorQ9A03
5
6
7
8
Audio OutputIC3A00
25 30 31 36
DBU3.3V TV uPC
A1.0V
1.0V
ASIC
ASIC
3.3V-SS TMDS
Part 1 Page 4-4
Part 1 - DLP
System Control
HDMI 1
HDMI 2
HDMI 3
HDMI 4
HDMI ProcessorIC2A01
CSCL
CSDA
CEC-D
INT
CEC-A
DSCL0DSDA0R0PWR5V
DSCL3DSDA3R3PWR5V
DSCL2DSDA2R2PWR5V
DSCL1DSDA1R1PWR5V
MicroprocessorIC7A01
HDMI-SCL
HDMI-SDA
HDMI-F-INT
CEC
HDMI-DET (0)
HDMI-DET (3)
HDMI-DET (2)
HDMI-DET (1)
Optical Engine
Multi-Format DecoderIC4A02
UARTIC4L01
CPLDIC4L02
CSA
CSB
B4
B2ENG-SCL
ENG-SDA
ENG
1
2
DM_TXD
DM_RXD
DM-RTS
DM-CTS
TV-TXD
TV-RXD
TV-RTS
TV-CTS
RXDF
TXDF
CTSF
RTSF
RXA
TXA
CTSA
RTSA
TUNER-SCL
TUNER-SDA
UART TXD 1
UART RXD 1
BSC-SCL
BSC-SDA
I2S-CLK
I2S-DATA
TXB
RXB
PWB MAIN
SERIAL FLASH
ASICIC5A01
ASIC-MTOD
ASIC-DTOM
ASIC-CLK
ASIC-CS
ASIC-RSTN
TMDSIC6C00
HSZ_OUT
VSZ_OUT
DE_OUT
CLK_OUT
HSYNC
VSYNC
DE
IDCK
TUNER
Audio OutputIC3A00
Part 1 Page 4-5
Part 1 - DLP
Lamp Control
FB
1
3
2
4
5
76
5VS
Q7A03 Q7A05
MicroprocessorIC7A01
J6C00
PWB PREAMP
PWB CONTROL
LE
1
32
4
5
76
8
109
3.3VSL
5VS
PreAmp
PreAmp
LE2
21
3
54
LE1
2
1
3
5
4
63
91
6
61
64
9
50
8
109ENGINE-ID
LAMPEN
DLP-RST
ENG-SDA
ENG-SCL
128
LAMPLIT
COVER-DET
LAMPLIT-OUT
LAMPLIT-RX
LAMPDIM-TX 127
DLP-ASIC-READY
KSC1
KSC0
RMC
LED-R
LED-G
126
67
68
103
102
20
125
75 SYST5-CARMASK1
SYST5-CARMASK2
SYST5-CAPTURELAMP BALLAST
CJ3
21
3
5
4
CD
2
1
PWB-SW-LAMP
J6C00
DVI CABLE
OPTICAL ENGINEPWB MAIN
DIM
LAMPLITZ
LAMPEN
PL
1
5
PWB POWER
CJ1
1
3340V
340V
CJ4
41
LAMP5VS
3.3VSL
GND
GND5VS
GND
LAMP GND
Part 1 Page 4-6
Part 1 - DLP
Video/Audio Signal Path
Optical Engine
Input 1
Input 2
Input 3
USB 2.0
Tuner
HDMI Processor
IC2A01
Y/Pb/Pr or CVBS
Y/Pb/Pr or CVBS
Y/Pb/Pr or CVBS
IF+
IF-
L/R Audio
L/R Audio
L/R Audio
Audio OutputIC3A00
AVR - L
Speaker(s) OUT
Audio DACIC3C00I2S AVR - R
DigitalAudioOutput
ATSC NTSCQAM
L/R AudioDVI/PC
PWB MAIN
ES
12
45
J6C00
SP L+
SP L-
SP R+
SP R-
TMDSIC6C00
ASICIC5A01
Multi-Format DecoderIC4A02
I2S (Audio L/R) OUT
LVDS OUT
Analog Audio IN
Analog Video IN
HDMI IN
Tuner IN
USB IN
SPDIF
HDMI 1
HDMI 2
HDMI 3
HDMI 4
J6C00
DVI CABLE
V41+ only
Part 1 Page 5-1
Part 1 - DLP
Part 1 - Chapter 5DLP Parts Quick Reference
MODEL OPTICAL ENGINE
FRESNEL LENS
LENTICULAR SCREEN MIRROR KIT PROJECTION
LENSWD-60737 938P158010 491P218010 491P217040 KIT-MIR V41 60" 491P240010WD-60C9 " " " " "WD-65737 938P158020 491P218020 491P217050 KIT-MIR V41 65" "WD-65837 955B378003 " " " "WD-65C9 938P158020 " " " "WD-73737 938P158030 491P218030 491P217060 KIT-MIR V41 73" "WD-73C9 " " " " "WD-73837 955B378004 " " " "WD-82737 938P158040 491P232010 491P231010 KIT-MIR V41 82" "WD-82837 955B378005 " " " "
OPTICAL ENGINE & MISC. PARTS
MODEL PWB-MAIN PWB-POWER PWB-LAMP-SW PWB-CONT PWB-LED PWB-RS232 PWB-PREAMPWD-60737 934C328001 934C329001 934D059001 934D060001 934D057001 X 934D058001WD-60C9 " " " " " X "WD-65737 " " " " " X "WD-65C9 " " " X "WD-73737 " " " " " X "WD-73C9 " " " " " X "WD-82737 " " " 934D060002 X X "WD-65837 934C328002 " " " X 934D062001 934D058002WD-73837 " " " " X " "WD-82837 " " " " X " "
PRINTED CIRCUIT BOARDS
PART PART NUMBERLamp-Cartridge 915B403001Lamp Ballast 938P127010Speaker 480P084020Fan-Exhaust 299P335010Fan-Scirocco (Lamp) 299P321010Fan-Engine (DMD) 299P339010Sensor-Temperature 299P337010Module-Color-Wheel 938P137010Remote Control 290P175010
ALL MODELS
Part 1 Page 5-2
Part 1 - DLP
Part 2 Page 1-1
Part 2 - LCD
Part 2 - Chapter 1Down-to-1
High Speed Troubleshooting
Because the operating software used in LCD Flat Panelis similar to the DLP product line, a lot of the trouble-shooting procedures are similar. However, some dif-ferences do exist. So, rather than pointing out excep-tions, the troubleshooting section is presented in its en-tirety.
User Level Resets and InitializationAs in previous models, many symptoms (customer gen-erated or intermittent) may be resolved by performinga reset or initialization. Many of these functions are avail-able to the customer. Asking the user to perform theseresets may eliminate the need for a service call. If theexact nature of a symptom is unknown, it’s best to have
the customer perform the most common procedures ina specific order to minimize the number of settings thatwill be affected. That order is:
1) System Reset2) A/V Reset by Input3) A/V Reset all Inputs4) Initialize (User Level)
Refer to the Reset/Initialization Chart shown in Table 2-1 for all procedures. Of course, if a user level resetdoes not correct the problem, it may be necessary toperform the Service Level Initialization as part of a ser-vice call.
User Level Initialization<MENU><1-2-3>
RESET SERVICE MENUWARNING: RESET SYSTEM DEFAULTSResets all settings back to default.
To reset system defaults, press ENTER.Press EXIT or MENU to exit.
Part 2 - LCD
Part 2 Page 1-2
Reset Name When to use How to use Resulting ActionRemote Control TV Layer Reset
Returns the remote control TV layer to normal operation.
1) 2) 2) 3) 3)
Set the slide switch to TV position.Press and hold the <POWER> button until it flashes twice then release the button.Enter the code <0-0-9-3-5>.
Once the valid code has been entered and confirmed, the remote contrrol has been reset.
Remote Control TV Volume/Mute functions
Returns the volume and mute functions of the remote control to TV volume and mute for TV, Cable/Sat, VCR and DVD layers after the Audio Lock for AV Receiver feature has been used.
1) 2) 2) 3)
(1) Set the slide switch to TV position.(2) Press and hold the <POWER> button until it flashes twice then release the button.(3) Enter the code <9-9-3>< + >.
The remote will now operate the TV's volume and mute when the slide switch is in the TV, CABLE/SAT, VCR or DVD positions.
A/V Memory Reset by individual input
When the audio and or video settings for a single input seems to be incorrect.
All Audio and Video settings for the individual input are reset except for the Listen To, Language, Balance and Closed Caption settings.
A/V Reset, all inputs
To reset audio and video adjustments for all inputs to the original factory settings.
All Audio and Video settings are reset to the factory default settings. No other menu options are changed.
System Reset
To reset the TV when it does not turn on or off, does not respond to the remote control, front panel buttons or has other unusual symptoms.
TV Micro Re-boots. Note: The changes made during the current TV-On period may be lost. All other previous user settings are not lost.
Initialize User Level
To reset all customer settings except V-Chip
All customer menu options and A/V settings except V-Chip are reset to factory default.
Initialize - Service Level
To reset all customer settings All customer menu options and A/V settings are reset to factory default.
V-Chip Password Bypass
If V-Chip password is not known Password will be bypassed. If in the V-Chip menu, enter a new password.
Unlock Front Panel
To unlock the front panel if it has been locked in the V-Chip Menu.
Front Panel becomes operational. Other V-Chip settings not changed. Note: Cannot be performed while in the Low Power mode and the set is Off.
<MENU><2-4-7-0>. Highlight INITIALIZE and press <ENTER>
Press < > & <9> at the same time.
Press and hold the front panel <ACTIVITY> button for 8 seconds.
1) Select Input to be reset2) <MENU> --> Adjust --> Reset
While viewing the TV, press the front panel buttons <ACTIVITY> & <VOL > at the same time and hold for 10 seconds.
Press the <POWER> button on the front panel and hold it for 8 seconds.
Press <MENU><1-2-3><ENTER>
Table 2-1: Reset/Initialization Chart
Resets and Initialization
Part 2 Page 1-3
Part 2 - LCD
Option MenuThe Option Menu is used for Service Level Initializa-tion. It also has other functions that can be useful indiagnosing a problem. To access the Option Menu:
1) Press <MENU><2-4-7-0>2) The Option Menu is displayed.
Figure 2-1 shows the Option Menu for V41 models.
The items listed in the Option Menu are:• INITIALIZE: Resets all user settings including
V-Chip settings and password and ADV (ISF)Video settings.
• POWER RESTORE: Allows the TV to beoperated by switching AC power. (A factoryfunction)
• PRODUCTION MODE – Defeats Auto InputDetection, activates all Inputs. (A factoryfunction)
• DIGITAL SIGNAL STRENGTH – Givesrelative signal strenght numerically 1~9 with 9the strongest. Select and press <ENTER> foradditional information.
• SOFTWARE – Current software version• TOTAL HOURS OF USE – Total time the set
has been On.
Digital Signal StrengthTo access information on digital signal reception:
1) Tune to a digital channel.2) Enter the Option Menu and scroll down to high-
light Digital Signal Strength.3) Press “ENTER”
The table in Figure 2-2 will be displayed. The mostimportant figure is the SNR (Signal to Noise Ratio). Theacceptable SNR depends on the type of signal:
• 8VSB (Air Broadcast) = 16 to 33• Cable 64 QAM = 22 to 35• Cable 256 QAM = 27 to 38
If the signal is fluctuating, the menu will indicate the num-ber of Correctable and Uncorrectable Errors as theyare encountered.
This information helps determine if a digital signal prob-lem is causing a symptom on the TV.
Option Menu<MENU><2-4-7-0>
InitializePower Restore OFFProduction Mode OFFDigital Signal Strength <1~9>NetCommand Software Vxx xxx.xxTotal hours of use 0
Figure 2-1: Option Menu
Digital Signal Strength Menu"Digital Signal Strength" <ENTER>
TunerFrequency(MHz) 749Signal Level <1~9>Modulation 8VSB AirCarrier Lock LockedSNR 29.09Correctable errors 0Un Correctable errors 0
Figure 2-2: Digital Signal Strength
Part 2 - LCD
Part 2 Page 1-4
Restore ISF Settings:1. Insert the USB memory device with the backup
data into the USB slot.2. Press the <MENU> button on the remote con-
trol. The Customer Menu will appear.3. Press the <2-4-5-7> buttons. The Service Menu
will appear, Figure 2-3.4. Press the <0> button. The Data Selection Menu
will appear.
5. Use the < > buttons to select “BACKUPAND RESTORE ISF SETTING” and press<ENTER>.
6. Use the < > buttons to toggle to “RestoreISF Settings From USB.”Warning: DO NOT press <ENTER> while"Backup ISF Settings to USB" is displayed. Thedata on the USB will be overwritten and lost.
7. While “Restore ISF Settings From USB” is dis-played, press <ENTER>. The screen will flashthe message "Restore completed." The TV willthen turn off.
8. Remove the USB memory device before turningthe TV back on.
Backup / Restore ISF SettingsIf the customer has calibrated the ISF (ADV) videosettings, the settings data can be backed up on a USBmemory device. If the settings are lost due to a Resetor Initialization procedure, PWB-MAIN replacementor other reasons, the settings data can be restored.
Backup ISF Settings:1. Insert a blank USB memory device into the USB
slot.2. Press the <MENU> button on the remote con-
trol. The Customer Menu will appear.3. Press the <2-4-5-7> buttons. The Service Menu
will appear, Figure 2-3.4. Press the <0> button. The Data Selection Menu
will appear.
5. Use the < > buttons to select “BACKUPAND RESTORE ISF SETTING” and press<ENTER>.
6. Use the < > buttons to toggle to "BackupISF Settings to USB” (Default).
7. While "Backup ISF Settings to USB” is displayed,press <ENTER>. The screen will flash the mes-sage "Backup completed."
8. Remove the USB memory device and store it ina safe place.
9. Press <MENU> to exit.
S OUND PROJECTOR TRANS DUCER TES T
BACKUP AND RESTORE IS F S ETTINGS
RED ONLY AND GREEN ONLY
BACKUP/RESTORE ISF SETTING MENU
Backup ISF Settings to USB
BACKUP/RESTORE ISF S ETTING MENU
Backup ISF Se t t ings t o USB
Backup complet ed.
S OUND PROJECTOR TRANS DUCER TES T
BACKUP AND RES TORE IS F S ETTINGS
RED ONLY AND GREEN ONLY
BACKUP/RESTORE ISF S ETTING MENU
Rest o re ISF Se t t ings From USB
Rest o re complet ed.
Service Mode <MENU> <2-4-5-7>
SERVICE
ASIC2950 GgainH 957
Figure 2-3: Service Mode Menu
BACKUP/RESTORE ISF SETTING MENU
Backup ISF Settings to USB WARNING Do Not Press ENTER
Part 2 Page 1-5
Part 2 - LCD
Figure 2-5: Side Panel
LED IndicationsThe front panel Status LED provides an indication ofthe set’s operation and the possible cause of a malfunc-tion. If an abnormal condition is indicated, perform theSelf Diagnostics procedure.
Table 2-2: LED Indications
STATUS LED Indication ConditionOff Off (standby)Green Power OnSlow Blink Green Power Off with Timer SetFast Blink Green Power On Booting
STATUS LED Indication ConditionBlinking Red Circuit Failure
NORMAL INDICATIONS
ABNORMAL INDICATIONS (For details perform Self Diagnostics procedure.)
ACTIVITY
ENTER
POWER
CH
VOL
STATUS
Self DiagnosticsTo activate, press the side panel <ACTIVITY> & <CH
> buttons at the same time and hold for 5 seconds.
The STATUS LED will then flash denoting a two digitcode.
• The number of flashes indicates the value of theMSD (tens digit) of the Error Code.
• The flashing then pauses for approximately 1/2second.
• The LED then flashes indicating the value of theLSD (ones digit) of the Error Code.
• The Error Code is repeated a total of 5 times.Example: If the Error Code is “27”, the LEDwill flash two times, pause, and then flash seventimes.
Error Codes, descriptions and the most likely cause ofthe error are listed in Table 2-3.
Figure 2-4: Status LED
Part 2 - LCD
Part 2 Page 1-6
Table 2-3: Error Codes
Error Code Log<MENU><3-5-6-4>
***** PAGE (001/001) *****
CURRENT TIME: 01455 HOURS
LAMP TIME CODE STATUS00413 HRS 27 HAPPENED
00716 HRS 44 HAPPENED Press Up to Previous Page
00905 HRS 44 HAPPENED Press Down to Next Page
Press Right to Top Page
Press Left to Last Page
Press CANCEL to Init ialize
Press MENU to Exit
Error Code LogThe Error Code Log can be used to retrieve the codefor an error that occurred in the past.
• To access the Error Code Log:<MENU> <3-5-6-4>.
• Press <CANCEL> to erase the Log.• Press <MENU> to exit.
Figure 2-6: Error Code Log
Error Code Log Definitions - Refer to Figure 2-6:• PAGE - Current page number• CURRENT TIME - total hours of operational
use.• LAMP TIME - usage hours when the error
occurred.• CODE - the specific Error Code that occurred.• STATUS: HAPPENED - Indicates an error
was recorded.
Note: The TV must be in “Shut Down.” The LEDwill probably be indicating an abnormalcondition. If the TV is switched Off, AC isremoved, or a System Reset is performed, thecode automatically resets to “12” No Error.See the Error Code Log to retrieve a history oferrors.
ERROR CODESError Code Cause Most Likely Failure
12 Normal off No Problem detected27 INVERTER-SHORT PWB-POWER or Panel-Assembly44 LVDS Cable connection detection Loose LVDS Cable at PWB-MAIN or Panel Assembly48 PON-SHORT PWB-MAIN59 PNL12V SHORT PWB-POWER or Panel-Assembly69 T2W-PWR SHORT PWB-POWER or PWB-NET/ML (VLP41++)
Note: Use the front panel buttons, not the remotecontrol.
Note: If there is no response, the front panel may belocked by a V-Chip setting. To unlock, pressand hold <ACTIVITY> on the front panel for8 seconds.
Part 2 Page 1-7
Part 2 - LCD
Figure 2-7: Data Selection Menu
Sound Projector Transducer TestThis procedure will test will each of the TV’s 16 speak-ers and amplifier circuits individually using an internalwhite noise generator.
1. Press the <MENU> button on the remote con-trol. The Customer Menu will appear.
2. Press the <2-4-5-7> buttons. The Service Menuwill appear.
3. Press the <0> button. The Data Selection Menuwill appear, Figure 2-7.
4. Use the < > buttons to select “SOUNDPROJECTOR TRANSDUCER TEST” andpress <ENTER>.
The Sound Projector Transducer Test Menu will be dis-played. The tone will automatically cycle from onespeaker to the next as indicated on screen. Follow theon-screen instructions to manually cycle the tone, Fig-ure 2-8.
Sound Projector Transducer Test
AUTO
Press AUDIO/Page UP to toggle between AUTO and MANUAL
Press Right to Next Speaker (When MANUAL)Press Left to Previous Speaker (When MANUAL)
Press 0 to end the test
6 7 8 9 101 2 3 4 5 1611 12 13 14 15
SOUND PROJECTOR TRANSDUCER TEST
BACKUP AND RESTORE ISF SETTINGSRED ONLY AND GREEN ONLY
Figure 2-8: Sound Projector Transducter Test Menu
Part 2 - LCD
Part 2 Page 1-8
Part 2 Page 2-1
Part 2 - LCD
Part 2 - Chapter 2Disassembly
Back Cover Removal**NOTE: It is not necessary to remove the Stand for Back Cover removal.1) Remove short screws (A) and long screws (B).2) Lft the back cover from the TV.
NOTE: Unless noted, instructions are for all models.Illustrations may differ slightly depending upon the actual model being serviced.
LCD Panel Replacement1) Remove the parts noted with **.2) Reverse the procedure to install a replacement.
A
A
A
B
B
B
Part 2 - LCD
Part 2 Page 2-2
Stand Removal**NOTE: The Stand can be removed either before orafter Back Cover removal.1) Lay the TV face down on a soft flat surface.2) Remove screws (C) and lift out.
C
Speaker Cabinet Removal**1) Disconnect all electrical connectors to the Speaker Cabinet.2) Remove screws (A).3) Lift the Speaker Cabinet out from the front of the TV.
Screen Size Screw Quantity52" 1046" 840" 6
SPEAKERAA
46" 40"52" A
A46"
52"CABINET
40"
Part 2 Page 2-3
Part 2 - LCD
Speaker Cabinet Disassembly (LT-40151, LT-46151, LT-52151, LT-46153 & LT-52153)1) GRILL-REAR - Remove screws (B).2) Preamp Assembly - Remove screw (C).3) LED Assembly - Remove screw (D).4) PLATE-LED - Remove screws (E).
B
ORNAMENT
B
ENET-SP
GRILL-REARPWB-PREAMP
PLATE-IR
C
LENS-IR
PLATE-LED
D
PWB-LED
COVER-LED
GRILL-SP
SPEAKER-2WPAD-SP
Speaker Cabinet Disassembly (LT-46249 & LT-52249)1) GRILL-REAR - Remove screws (B).2) Preamp Assembly - Remove screw (C).3) LED Assembly - Remove screw (D).4) SPEAKER(S) - Remove screws (E).
B
ORNAMENT-SP
PWB-PREAMP
LENSIR
PLATEIR
B
C
D
SPEAKER
GRILL-SP
GRILL-REAR
NET-SP
SPEAKER-2WPAD-SP
LENS-LED
PWB-SBL
PLATE-LED
PWB-LED
E
HOLDER-SP
Part 2 - LCD
Part 2 Page 2-4
BEZEL-FRONT Removal**1) Remove the Speaker Cabinet.2) Release the clips arond the sides and top of the Bezel and lift away from the front of the LCD Panel .
BEZEL-FRONT Replacement (LT-40153, LT-46153, LT-52153, LT46249, LT-52249)1) Apply double faced adhesive tape along the inside top, bottom and sides of the Panel-Front.2) Use even pressure to mate the Panel-Front to the Bezel.
DF-ADHESIVE-TAPE
A A WALL MOUNTBRACKETS
A STAND
BRACKETMOUNTING
D
BC AC POWERJACK
E
USB CABLEPWB-SIDE BUTTON-SIDE
SIDE TERMINAL
F
Wall Mount Brackets Removal**1) Remove screws (A).2) Lift off the Wall Mount Brackets.
AC Power Jack Removal**1) Remove screws (B) and (C).2) Disconnect electrical connector.3) Lift off the AC POWER JACK.
.Stand Mounting Bracket Removal**1) Remove screws (D).2) Lift off the Stand Mounting Bracket.
Side Terminal Removal**1) Disconnect all electrical connectors to the Side Terminal.2) Slide the Side Terminal out of the TV.
Side Terminal Disassembly1) HDMI Cable - Remove screws (E).2) PWB-SIDE & BUTTON-SIDE - Remove screws (F).
Part 2 Page 2-5
Part 2 - LCD
NET/ML Assembly Removal** (LT-46249 & LT-52249 Only)1) Disconnect all electrical connectors from PWB-NET/ML and PWB-ML-POWER.2) Remove screws (A).3) Lift Net/ML Assembly up and off.
PWB-ML-POWER Replacement (LT-46249 & LT-52249 Only)NOTE: Removal of the NET/ML-Assembly is not required for PWB-ML-POWER replacement.1) Disconnect all electrical connectors from PWB-ML-POWER.2) Remove screws (B).3) Lift away the PWB-ML-POWER.4) Reverse the procedure for installation.
A
A
NET/MLASSEMBLY
PWB-NET/MLPWB-ML-POWER
B
PWB-ML-POWER
Part 2 - LCD
Part 2 Page 2-6
PWB-NET/ML Replacement (LT-46249 & LT-52249 Only)1) Remove the NET/ML- ASSEMBLY..2) From the reverse side, remove screws (C).3) Lift away the PWB-NET/ML.4) Reverse the procedure for installation.
Power Assembly Removal**1) Remove the NET/ML-ASSEMBLY. (LT-46249 & LT-52249 Only).2) Disconnect all electrical connectors from PWB-POWER.3) Remove screws (A).4) Lift off the Power Assembly.
PWB-POWER ReplacementNOTE: Removal of the POWER-ASSEMBLY is not required for PWB-POWER replacement.1) Disconnect all electrical connectors from PWB-POWER.2) Remove screws (B).3) Lift off the PWB-POWER.4) Reverse the procedure for installation.
C
PWB-NET/ML
A
A
POWERASSEMBLY
PWB-POWER
B
Part 2 Page 2-7
Part 2 - LCD
Main Assembly Removal** /PWB-MAIN ReplacementNote: The PWB-MAIN is replaced as an assembly that includes the shield.1) Remove the NET/ML-Assembly. (LT-46249 & LT-52249 Only).2) Disconnect all electrical connectors from PWB-MAIN.3) Remove screws (A).4) Lift off the Main Assembly.5) To install a replacement PWB-MAIN, reverse the procedure
A
A
MAIN-ASSEMBLY
PWB-MAIN
Part 2 - LCD
Part 2 Page 2-8
Top, Bottom & Side Brackets Removal**Top Stay Removal** (52” Models)
1) 40” and 46” models - Remove screws (A) & (B). 52” models - Remove screws (A) (B) & (C).
A40" & 46" MODELS
BRACKET-SIDE BRACKET-SIDEBRACKET-TOP
BRACKET-BOTTOM
AA
A
B
C52" MODELS
BRACKET-SIDE BRACKET-SIDEBRACKET-TOP
BRACKET-BOTTOM
AA
C
B
STAY-TOP
Part 2 Page 3-1
Part 2 - LCD
Part 2 - Chapter 3Circuit Block Diagrams
Power Supply Overview
PWB-NET/MLML
Audio
VLP41++ only
3.3VS12VS
5VSL
MLVCC
FET Switch
CC3~4
5
CG1~2
PWB ML-POWERMLVCC(+18V)
CH1~2
PK1
VLP41++ only
CC3~4
5
PK1
PC1~5
PD1~5
PE1~2
PC11~2
PB
1~2
PB1
1~2
7~8 7~8
5 5
nc
1~5
nc
1~5
PWB-MAIN
LCD PANEL
46" and 52" only
J5F01
47~51
37~41
J5F02
nc
1~5
nc
1~5
FET Switch
VINV(+24V)
12VS PANEL-VCC
+340V
5VSL
5VS
2.5VS
1.2VS
1.8VS
Tuner
Main Audio5VA
8.0V
Doubler 30VSL
2.5VS
1.2VS
1.8VS
105VDD
5VS
3.3V
3.3VSL
FET Switch
3.3VS
12VS
5VSL
12VS
Relay
PWB-POWER
PS1,3
+340V
24V
24V
12V
12VAC
Part 2 - LCD
Part 2 Page 3-2
5VSL Source
AC
To PWB-MAIN
To PWB-NET/MLVLP41++ only
T9030
PS
1
3
D9012 R9030
D9013
PWB POWER
5VSL
L
N
StandbySMPS
RegulatorIC9030 FB
Vcc
Drain
REFIC9001
89
1011
6
5
3
Live Cold
GND*
4
3
R9007
OCP
Drain
R9011
R9015 R9013
R9012
StartR9088 R9087
1
2
4
3
PC9020
PB5
CC5
R9010
D9011
D9009
F9000
1
R9021
7
2
1
8
5
AC to
+340V Source
D9207
*Although labeled GND, this is NOT ground potential.
5VSL
5VSL
Vcc ( 17V) for IC9101 and IC9201
~~
5VSL Distribution
PWB POWER PWB-MAIN
3.3VSL Regulator
IC9A041 5 3.3VSL
5VS
STBY-ON
3.3V Regulator
IC7A031 5
3.3V
Q9A04Q9A05
SBL-5VSLL7C02
PWB-SBL
(for Micro Vcc only)
SBL-RNT
SBL-5VSL
BLUE-LED
MicroPB5
CC5
5VSL
5VSL
PB15
VLP41++ only
L7A01
L7A023.3V
5VSSwitchFET
Q1903 5VS4
3
2
1
6
5Q1901Q1902
5VSSwitchFET
Q9A06 4
3
2
1
6
5
STBY-ON-T2W
CC5
CA7T2W-STDBY
CA5
PWB-NET/ML VLP41++ only
LE110
9
LE53
15VSL
5VSL
Part 2 Page 3-3
Part 2 - LCD
340V Source
D9201
PWB POWER
+340V
R9231
F9000
PS1
3
L
N
K9010
K9011
Q9007 Q9009
5VSL
5VSL
Q9008 Q9006
Main Relay
D9200
ACto
5VSL Source
D9202
D9209
13
75
13
75
Q9201
Q9202
L9202
L9201 R9230
R9229
R9228
R9227
R9206
R9219
R9220
R9221
R9222
R9213
Transition ModePFC
Pre-RegulatorIC9201
VSENSE
8
GDA 14
GDB 11
ZCDA 16
ZCDB 1
HVSEN
2
PK
1
4To PWB ML-POWERVLP41++ only
PA8 From PWB MAIN
Live Cold
+340V toVINV, 12VS, and
PANEL-VCCSupply
F9100 +340V
T9M00+340V
To PWB-NET/MLVLP41++ only
PK
4
D9M00
D9M01
PWB ML-POWER
18V
MLVCCSMPS
RegulatorIC9M00
FB
VCC
6
3
Live Cold
GND*
6
5
D/ST
R9M04
1
2
4
3
PC9M00
CH
1
R9M07
1
4
*Although labeled GND, this is NOT ground potential.
11
D9M025
R9M08
S/OCP 3
R9M0011
12
9
8
R9M03
R9M05
432
REFIC9M01
R9M01R9M02
VLP41++ only
PWB-ML POWER
Part 2 - LCD
Part 2 Page 3-4
1
2
4
3
R9116R9115
Q9101
Q9102
MainSMPS
RegulatorIC9101
VG(H)
5
2
12
16
VG(L)
GND
F/B
D9103
D9101
D9102
D9104
3
112
14
10
8
3
1
12
14
10
8
R9119
R9118
R9121
R9122
VINV (24V)
12VS
4
PC5
321
4
PD5
321
R9117
+340V
To PWB-MAIN
To PWB-NET/MLVLP41++ only
PB
3
CC
78
4
F9001
46" and 52" only
Live Cold
PWB POWER
To PWB-MAIN
PE
12
12
To PANEL
To PANEL
Audio circuits only
Q9012
REFIC9102
PANEL-PWR
PA4
PANEL-VCCPANEL-VCC
12VS12VS
12VS
12VS
12VS12VS
PC9101R9106
From PWB-MAIN
Vs 15
Q9011
T9020
T9010
VINV, 12VS and PANEL-VCC Sources
Part 2 Page 3-5
Part 2 - LCD
12VS Distribution 1 of 2
PWB-MAIN
12VS 12VS
PWB-POWER
PE
1
2PC1
1
2
CC
3
4CC
3
4
8.0V Regulator
IC3G015 4
(for Audio DSP only)8.0V
5VA
5VARegulator
Q3K00
1 2 3 4
5678
5VARegulator
Q3K01
1 2 3 4
5678 Audio Output Amps
F1902
1.8VS
3.3VS
2.5VS
1.2VS
3.3VS Regulator
Q9A01
5 7
6 8
2.5VS Regulator
IC19028 1
1.8VSRegulator
Q1907
5
6
1.2VS Regulator
Q1908
5
6
7
8
7
8
PWB-NET/ML
F9001
VLP41++ only
5.0V
8.0V
3.3V
2.5V
1.8V
1.2V
Part 2 - LCD
Part 2 Page 3-6
12VS Distribution 2 of 2
PWB-MAIN
1.2VS
1.8VS
VDD105
3.3VSF9A01
1.2VS Regulator
Q9A03
5
6
7
8
1.8VS Regulator
Q9A02
5
6
7
8
1.05V Regulator
Q9A80
5
6
7
8
12VS
L5A06ASIC_VDDQ_V1
L5A07ASIC_VDDQ_V
L5A08ASIC-3.3V
FRC3.3VSwitchFET
Q5F03
4 3
21 65
FRC3.3V
L5F04VDD33OSC
L5F03VDD33
2.5V Regulator
IC5F03
5
81
L5F00VDD25PLL
L5F01VDD25
FRC-VDD33-SWMicro
1.8VSwitchFET
Q5F04
4 3
21 65
1.05V Regulator
IC5F06
5
81
VDD18
FRC-VDD105PLL-SW
30VSL
3.3VSRegulator
Q9A20
5678
3.3VSRegulator
Q9A21
1 2 3 4
1 2 3 4
5678
Voltage DoublerD9A01, D9A02, Q9A11
L5F05VDD105PLL
L5F06
VDD105MPLLL5F07
VDD105DLL
12VS
PWB-POWER
PB
7
8PB1
7
8
L4G25AGC_VDD0V
L4G05D3.3V_BCM3549
L4G06A3.3V_BCM3549
2.5VS Regulator
IC4G01
5
81 A2.5V_BCM3549
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
3.3V
1.8V
1.2V
1.05V
2.5V
30V
2.5V
2.5V
1.8V
1.05V
1.05V
1.05V
Part 2 Page 3-7
Part 2 - LCD
Signal Path
Input 2
Input 3(Side)
Y/Pb/Pr or CVBS
Y/Pb/Pr or CVBS
L/R Audio
L/R Audio
L/R AudioDVI/PC
PWB MAIN
ASICIC5A01
Multi-Format DecoderIC4A02
LVDS OUT
SPDIF OUT
Y/Pb/Pr or CVBS
L/R Audio
Analog Audio IN
Analog Video IN
Input 1
Digital Audio Input
Audio Decoder
IC3F00
I2S
I2S
120HzConverter
(FRC)IC5F00
LCD Module
LCD Panel
INVERTER
INVERTER
Control PWB
J5F02
J5F01HDMI
ProcessorIC2A01 HDMI IN
HDMI 1
HDMI 2
HDMI 3
HDMI 4
TunerIF+
IF-
ATSC NTSCQAM
Tuner IN
Digital Audio Output
Audio DSP
IC3G00
AVR - LAVR - R
Subwoofer
LsRs
Center(VLP41+ and VLP41++ only)
Audio OutputIC3J40
Audio OutputIC3J60
Audio OutputIC3J50
Audio OutputIC3J70
Audio DAC
IC3H00
Audio DAC
IC3H50
Audio OutputIC3J01
Audio OutputIC3J20
Audio OutputIC3J10
Audio OutputIC3J30
1112
78910
56
1234
SP3
11
78910
56
1234
SP2
SP1
78910
56
1234
SP1
SP2
SP3
SP4
SP5
SP6
SP7
SP8
SP9
SP10
SP11
SP12
SP13
SP14
SP15
SP16
SP1+SP1-SP2+SP2-SP3+SP3-
SP4-SP4+
SP5+SP5-SP6+SP6-
SP12+SP12-SP13+SP13-SP14+SP14-
SP15-SP15+
SP16+SP16-
SP7+SP7-SP8+SP8-SP9+SP9-
SP10-SP10+
SP11+SP11-
SP-RS
SP-LS
SP4
78910
SP RS+SP RS-
SP LS-SP LS+4
123CF
2
CF5
25
ML-AUDIO_R
PWB-NET/ML (VLP41++ only)
Audio DSPAudio Output
IC3010
USB 2.0 USB IN
(VLP41++ only)
ML-AUDIO_L
Part 2 - LCD
Part 2 Page 3-8
System Control
HDMI 1
HDMI 2
HDMI 3
HDMI 4
HDMI ProcessorIC2A01
CSCL
CSDA
CEC-D
INT
CEC-A
DSCL0DSDA0R0PWR5V
DSCL3DSDA3R3PWR5V
DSCL2DSDA2R2PWR5V
DSCL1DSDA1R1PWR5V
MicroprocessorIC7A01
HDMI-SCL
HDMI-SDA
HDMI-F-INT
CEC
HDMI-DET (0)
HDMI-DET (3)
HDMI-DET (2)
HDMI-DET (1)
Multi-Format Decoder
IC4A02
UARTIC4L01
CPLDIC4L02
DM_TXD
DM_RXD
DM-RTS
DM-CTS
TV-TXD
TV-RXD
TV-RTS
TV-CTS
RXDF
TXDF
CTSF
RTSF
RXA
TXA
CTSA
RTSA
TUNER-SCL
TUNER-SDA
UART INTA
UART INTB
BSC-SCL
BSC-SDA
PWB MAIN
SERIAL FLASH
ASICIC5A01
FRCIC5F00
CLK-FI
PLDCLKSCL-I
SDA-I
E2PROMIC5F02
MSDA
MSCL
SDA
SCL
SCL-I
SDA-I
Audio DAC
IC3H00
Audio DAC
IC3H50
Audio Decoder
IC3F00
Audio DSP
IC3G00
ASIC-MTODASIC-DTOMASIC-CLKASIC-CS
ASIC-RSTN
TUNER
RXB
TXB
CTSB
RTSB
CA
1
2
4
3
PC-TXD
PC-RXD
PC-RTS
PC-CTS
RXDF
TXDF
CTSF
RTSF
PWB-NET/ML (VLP41++ only)
CSA
CSB
B4
B2
UART INTA
UART INTBMulti-Format
DecoderIC1501
UART-CTS-1
UART-RTS-1
UART-RXD-1
UART-TXD-1
CA
1
2
4
3
Part 2 Page 4-1
Part 2 - LCD
Part 2 - Chapter 4LCD Parts Quick Reference
LT-40151 LT-40153 LT-46151 LT-46153 LT-46249 LT-52151 LT-52153 LT-52249LCD-MODULE 289P137020 289P138020 289P147010 289P143020 289P148020ASSY-PWB-MAIN 934C335003 934C335004 934C335001 934C335002 934C335007 934C335005 934C335006 934C335008ASSY-PWB-POWER 934C336001 934C336002 934C336003 934C336002 934C336003ASSY-PWB-SIDE 934C334001ASSY-PWB-LED 934D066001ASSY-PWB-PREAMP 934D067001 934D067002 934D067001 934D067002 934D067001 934D067002ASSY-PWB-SBL 934D076001 934D076001ASSY-PWB-NET/ML 934C339001 934C339001ASSY-PWB-MLPOWER 934C342001 934C342001REMOTE-CONTROL 290P175010 290P175020 290P175010 290P175020
Part 2 Page 4-2
Part 2 - LCD
