FL9_0_FUN_SM_AEN_012110

LCD TVchassis FL9.0

SERVICE MANUALContents

19 LC195SLX SYLVANIA (Serial No. : DS1A**********)19 LC195SLX SYLVANIA (Serial No. : DS2A**********)19 LC195SLX SYLVANIA (Serial No. : DS3A**********)19 LC195SLX SYLVANIA (Serial No. : DS4A**********)19 LC195SLX SYLVANIA (Serial No. : TH3A**********)19 LC195SLX SYLVANIA (Serial No. : TH4A**********)19 LC195SLX SYLVANIA (Serial No. : TH5A**********)19 LC195SLX SYLVANIA (Serial No. : TH6A**********)19 LC195EMX EMERSON (Serial No. : DS1A**********)19 LC195EMX EMERSON (Serial No. : DS2A**********)19 LC195EMX EMERSON (Serial No. : DS3A**********)19 LC195EMX EMERSON (Serial No. : DS4A**********)19 LC195EMX EMERSON (Serial No. : TH3A**********)19 LC195EMX EMERSON (Serial No. : TH4A**********)19 LC195EMX EMERSON (Serial No. : TH5A**********)19 LC195EMX EMERSON (Serial No. : TH6A**********)22 22MF339B/F7 MAGNAVOX22 LC225SSX SYLVANIA Limited19 LC195SSX SYLVANIA Limited (Serial No. : DS1A**********)19 LC195SSX SYLVANIA Limited (Serial No. : DS2A**********)19 19MF339B/F7 MAGNAVOX (Serial No. : DS1A**********)19 19MF339B/F7 MAGNAVOX (Serial No. : DS2A**********)

2010 Funai Electric Co., Ltd.

All rights reserved. No part of this manual may be reproduced, copied, transmitted, disseminated, transcribed, downloaded or stored in any storage medium, in any form or for any purpose without the express prior written consent of Funai. Furthermore, any unauthorized commercial distribution of this manual or any revision hereto is strictly prohibited.

Information in this document is subject to change without notice. Funai reserves the right to change the content herein without the obligation to notify any person or organization of such changes.

with the design is a registered trademark of Funai Electric Co., Ltd and may not be used in any way without the express written consent of Funai. All other trademarks used herein remain the exclusive property of their respective owners. Nothing contained in this manual should be construed as granting, by implication or otherwise, any license or right to use any of the trademarks displayed herein. Misuse of any trademarks or any other content in this manual is strictly prohibited. Funai shall aggressively enforce its intellectual property rights to the fullest extent of the law.

A91N3UH/N4UH/70UH/71UH/N1UH/N0UH/N5UH/N6UH/N8UT/N9UT/NCUT/NBUTA9AN3UH/N4UH/N0UH/N5UH/N6UH/N1UH/NBUH/N9UT/NCUT/N8UT

100122

IMPORTANT SAFETY NOTICEProper service and repair is important to the safe, reliable operation of all Funai Equipment. The service procedures recommended by Funai and described in this service manual are effective methods of performing service operations. Some of these service special tools should be used when and as recommended.It is important to note that this service manual contains various CAUTIONS and NOTICES which should be carefully read in order to minimize the risk of personal injury to service personnel. The possibility exists that improper service methods may damage the equipment. It also is important to understand that these CAUTIONS and NOTICES ARE NOT EXHAUSTIVE. Funai could not possibly know, evaluate and advice the service trade of all conceivable ways in which service might be done or of the possible hazardous consequences of each way. Consequently, Funai has not undertaken any such broad evaluation. Accordingly, a servicer who uses a service procedure or tool which is not recommended by Funai must first use all precautions thoroughly so that neither his safety nor the safe operation of the equipment will be jeopardized by the service method selected.

The LCD panel is manufactured to provide many years of useful life. Occasionally a few non active pixels may appear as a tiny spec of color. This is not to be considered a defect in the LCD screen.

TABLE OF CONTENTSSpecifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1Important Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1Standard Notes for Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1Cabinet Disassembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1Electrical Adjustment Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 How to Initialize the LCD TV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1Firmware Renewal Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1 Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1Schematic Diagrams / CBA and Test Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-1Exploded Views. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-1Mechanical Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-1Electrical Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-1Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-1

1-1 FL9.0SP

SPECIFICATIONS< TUNER / NTSC >

ANT. Input ---------------------- 75 Unbal., F type

< TUNER / ATSC >

< LCD PANEL >

< VIDEO >

< AUDIO >All items are measured across 8 load at speaker output terminal with L.P.F.

Description Condition Unit Nominal Limit1. AFT Pull-In Range --- MHz 2.3 2.1

2. Synchronizing Sens.TV.ch.4

CA.ch.31CA.ch.87

dBdBdB

181818

202023

Description Condition Unit Nominal Limit1. Received Freq. Range (-28dBm) --- kHz --- 100

2. ATSC Dynamic Range (min / max)ch.4

ch.10ch.41

dBmdBmdBm

---

---

---

-76/0-76/0

-76/+4

Description Condition Unit Nominal Limit

1. Native Pixel Resolution HorizontalVerticalpixelspixels

1366768

---

---

2. Brightness (w / filter) --- cd/m2

[LC195SLX, LC195EMX, LC195SSX,

19MF339B/F7]300

[22MF339B/F7, LC225SSX]

330

---

3. Viewing Angle HorizontalVertical

-85 to 85-80 to 80

---

---

Description Condition Unit Nominal Limit

1. Over Scan HorizontalVertical%%

55

5555

2. Color Temperature---

xy

K 120000.2720.278

---

3%3%

3. Resolution (composite video) HorizontalVerticallineline

400350

---

---

Description Condition Unit Nominal Limit1. Audio Output 10% Distortion (ATSC 0 dBfs) Lch/Rch W 3.0/3.0 2.8/2.82. Audio Distortion (NTSC) 500mW: Lch/Rch % 0.5/0.5 2.0/2.03. Audio Freq. Response (NTSC) -6dB: Lch

-6dB: RchHzHz

70 to 10 k70 to 10 k

---

---

2-1 LTVN_ISP

IMPORTANT SAFETY PRECAUTIONSPrior to shipment from the factory, our products are strictly inspected for recognized product safety and electrical codes of the countries in which they are to be sold. However, in order to maintain such compliance, it is equally important to implement the following precautions when a set is being serviced.

Safety Precautions for LCD TV Circuit1. Before returning an instrument to the

customer, always make a safety check of the entire instrument, including, but not limited to, the following items:a. Be sure that no built-in protective devices are

defective and have been defeated during servicing. (1) Protective shields are provided on this chassis to protect both the technician and the customer. Correctly replace all missing protective shields, including any removed for servicing convenience. (2) When reinstalling the chassis and/or other assembly in the cabinet, be sure to put back in place all protective devices, including but not limited to, nonmetallic control knobs, insulating fishpapers, adjustment and compartment covers/shields, and isolation resistor/capacitor networks. Do not operate this instrument or permit it to be operated without all protective devices correctly installed and functioning. Servicers who defeat safety features or fail to perform safety checks may be liable for any resulting damage.

b. Be sure that there are no cabinet openings through which an adult or child might be able to insert their fingers and contact a hazardous voltage. Such openings include, but are not limited to, (1) spacing between the Liquid Crystal Panel and the cabinet mask, (2) excessively wide cabinet ventilation slots, and (3) an improperly fitted and/or incorrectly secured cabinet back cover.

c. Antenna Cold Check - With the instrument AC plug removed from any AC source, connect an electrical jumper across the two AC plug prongs. Place the instrument AC switch in the on position. Connect one lead of an ohmmeter to the AC plug prongs tied together and touch the other ohmmeter lead in turn to each tuner antenna input exposed terminal screw and, if applicable, to the coaxial connector. If the measured resistance is less than 1.0 megohm or greater than 5.2 megohm, an abnormality exists that must be corrected before the instrument is returned to the customer. Repeat this test with the instrument AC switch in the off position.

d. Leakage Current Hot Check - With the instrument completely reassembled, plug the AC line cord directly into a 120 V AC outlet. (Do not use an isolation transformer during this test.) Use a leakage current tester or a metering system that complies with American National Standards Institute (ANSI) C101.1 Leakage Current for Appliances and Underwriters Laboratories (UL) 1410, (50.7). With the instrument AC switch first in the on position and then in the off position, measure from a known earth ground (metal water pipe, conduit, etc.) to all exposed metal parts of the instrument (antennas, handle brackets, metal cabinet, screw heads, metallic overlays, control shafts, etc.), especially any exposed metal parts that offer an electrical return path to the chassis. Any current measured must not exceed 0.5 milli-ampere. Reverse the instrument power cord plug in the outlet and repeat the test.

ANY MEASUREMENTS NOT WITHIN THE LIMITS SPECIFIED HEREIN INDICATE A POTENTIAL SHOCK HAZARD THAT MUST BE ELIMINATED BEFORE RETURNING THE INSTRUMENT TO THE CUSTOMER OR BEFORE CONNECTING THE ANTENNA OR ACCESSORIES.

2. Read and comply with all caution and safety-related notes on or inside the receiver cabinet, on the receiver chassis, or on the Liquid Crystal Panel.

ALSO TEST WITHPLUG REVERSEDUSING ACADAPTER PLUGAS REQUIRED

TEST ALL EXPOSEDMETAL SURFACES

READING SHOULD NOT BE ABOVE 0.5 mA

EARTHGROUND

_

DEVICELEAKAGECURRENT

TESTER+

BEINGTESTED

2-2 LTVN_ISP

3. Design Alteration Warning - Do not alter or add to the mechanical or electrical design of this TV receiver. Design alterations and additions, including, but not limited to circuit modifications and the addition of items such as auxiliary audio and/or video output connections, might alter the safety characteristics of this receiver and create a hazard to the user. Any design alterations or additions will void the manufacturer's warranty and may make you, the servicer, responsible for personal injury or property damage resulting therefrom.

4. Hot Chassis Warning -a. Some TV receiver chassis are electrically

connected directly to one conductor of the AC power cord and maybe safety-serviced without an isolation transformer only if the AC power plug is inserted so that the chassis is connected to the ground side of the AC power source. To confirm that the AC power plug is inserted correctly, with an AC voltmeter, measure between the chassis and a known earth ground. If a voltage reading in excess of 1.0 V is obtained, remove and reinsert the AC power plug in the opposite polarity and again measure the voltage potential between the chassis and a known earth ground.

b. Some TV receiver chassis normally have 85V AC(RMS) between chassis and earth ground regardless of the AC plug polarity. This chassis can be safety-serviced only with an isolation transformer inserted in the power line between the receiver and the AC power source, for both personnel and test equipment protection.

c. Some TV receiver chassis have a secondary ground system in addition to the main chassis ground. This secondary ground system is not isolated from the AC power line. The two ground systems are electrically separated by insulation material that must not be defeated or altered.

5. Observe original lead dress. Take extra care to assure correct lead dress in the following areas: a. near sharp edges, b. near thermally hot parts-be sure that leads and components do not touch thermally hot parts, c. the AC supply, d. high voltage, and, e. antenna wiring. Always inspect in all areas for pinched, out of place, or frayed wiring. Check AC power cord for damage.

6. Components, parts, and/or wiring that appear to have overheated or are otherwise damaged should be replaced with components, parts, or wiring that meet original specifications. Additionally, determine the cause of overheating and/or damage and, if necessary, take corrective action to remove any potential safety hazard.

7. Product Safety Notice - Some electrical and mechanical parts have special safety-related characteristics which are often not evident from visual inspection, nor can the protection they give necessarily be obtained by replacing them with components rated for higher voltage, wattage, etc. Parts that have special safety characteristics are identified by a # on schematics and in parts lists. Use of a substitute replacement that does not have the same safety characteristics as the recommended replacement part might create shock, fire, and/or other hazards. The product's safety is under review continuously and new instructions are issued whenever appropriate. Prior to shipment from the factory, our products are strictly inspected to confirm they comply with the recognized product safety and electrical codes of the countries in which they are to be sold. However, in order to maintain such compliance, it is equally important to implement the following precautions when a set is being serviced.

2-3 LTVN_ISP

Precautions during ServicingA. Parts identified by the # symbol are critical for

safety.Replace only with part number specified.

B. In addition to safety, other parts and assemblies are specified for conformance with regulations applying to spurious radiation. These must also be replaced only with specified replacements.Examples: RF converters, RF cables, noise blocking capacitors, and noise blocking filters, etc.

C. Use specified internal wiring. Note especially:1) Wires covered with PVC tubing2) Double insulated wires3) High voltage leads

D. Use specified insulating materials for hazardous live parts. Note especially:1) Insulation Tape2) PVC tubing3) Spacers4) Insulators for transistors.

E. When replacing AC primary side components (transformers, power cord, etc.), wrap ends of wires securely about the terminals before soldering.

F. Observe that the wires do not contact heat producing parts (heat sinks, oxide metal film resistors, fusible resistors, etc.)

G. Check that replaced wires do not contact sharp edged or pointed parts.

H. When a power cord has been replaced, check that 5~6 kg of force in any direction will not loosen it.

I. Also check areas surrounding repaired locations.J. Use care that foreign objects (screws, solder

droplets, etc.) do not remain inside the set.K. When connecting or disconnecting the internal

connectors, first, disconnect the AC plug from the AC supply outlet.

L. When installing parts or assembling the cabinet parts, be sure to use the proper screws and tighten certainly.

2-4 LTVN_ISP

Safety Check after ServicingExamine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts and wires have been returned to original positions. Afterwards, perform the following tests and confirm the specified values in order to verify compliance with safety standards.

1. Clearance DistanceWhen replacing primary circuit components, confirm specified clearance distance (d) and (d') between soldered terminals, and between terminals and surrounding metallic parts. (See Fig. 1)Table 1: Ratings for selected area

Note: This table is unofficial and for reference only. Be sure to confirm the precise values.

2. Leakage Current TestConfirm the specified (or lower) leakage current between B (earth ground, power cord plug prongs) and externally exposed accessible parts (RF terminals, antenna terminals, video and audio input and output terminals, microphone jacks, earphone jacks, etc.) is lower than or equal to the specified value in the table below.Measuring Method: (Power ON)Insert load Z between B (earth ground, power cord plug prongs) and exposed accessible parts. Use an AC voltmeter to measure across both terminals of load Z. See Fig. 2 and following table.

Table 2: Leakage current ratings for selected areas

Note: This table is unofficial and for reference only. Be sure to confirm the precise values.

AC Line Voltage Region Clearance Distance (d), (d)

110 to 130 V U.S.A. or Canada 3.2 mm

(0.126 inches)

AC Line Voltage Region Load Z Leakage Current (i) Earth Ground (B) to:

110 to 130 V U.S.A. or Canada0.15 F CAP. & 1.5 k

RES. Connected in parallel i 0.5 mA rmsExposed accessible

parts

Chassis or Secondary Conductor

Primary Circuit

Fig. 1

d' d

AC Voltmeter (High Impedance)

Exposed Accessible Part

B Earth Ground Power Cord Plug Prongs

Z

Fig. 2

3-1 TVN_SN

STANDARD NOTES FOR SERVICINGCircuit Board Indications1. The output pin of the 3 pin Regulator ICs is

indicated as shown.

2. For other ICs, pin 1 and every fifth pin are indicated as shown.

3. The 1st pin of every male connector is indicated as shown.

Pb (Lead) Free SolderPb free mark will be found on PCBs which use Pb free solder. (Refer to figure.) For PCBs with Pb free mark, be sure to use Pb free solder. For PCBs without Pb free mark, use standard solder.

How to Remove / Install Flat Pack-IC1. RemovalWith Hot-Air Flat Pack-IC Desoldering Machine:1. Prepare the hot-air flat pack-IC desoldering

machine, then apply hot air to the Flat Pack-IC (about 5 to 6 seconds). (Fig. S-1-1)

2. Remove the flat pack-IC with tweezers while applying the hot air.

3. Bottom of the flat pack-IC is fixed with glue to the CBA; when removing entire flat pack-IC, first apply soldering iron to center of the flat pack-IC and heat up. Then remove (glue will be melted). (Fig. S-1-6)

4. Release the flat pack-IC from the CBA using tweezers. (Fig. S-1-6)

CAUTION:1. The Flat Pack-IC shape may differ by models. Use

an appropriate hot-air flat pack-IC desoldering machine, whose shape matches that of the Flat Pack-IC.

2. Do not supply hot air to the chip parts around the flat pack-IC for over 6 seconds because damage to the chip parts may occur. Put masking tape around the flat pack-IC to protect other parts from damage. (Fig. S-1-2)

Top View

Out In

Bottom ViewInput

5

10

Pin 1

Pin 1

Pb free mark

Fig. S-1-1

3-2 TVN_SN

3. The flat pack-IC on the CBA is affixed with glue, so be careful not to break or damage the foil of each pin or the solder lands under the IC when removing it.

With Soldering Iron:1. Using desoldering braid, remove the solder from

all pins of the flat pack-IC. When you use solder flux which is applied to all pins of the flat pack-IC, you can remove it easily. (Fig. S-1-3)

2. Lift each lead of the flat pack-IC upward one by one, using a sharp pin or wire to which solder will not adhere (iron wire). When heating the pins, use a fine tip soldering iron or a hot air desoldering machine. (Fig. S-1-4)



Hot-airFlat Pack-ICDesolderingMachineCBA

Flat Pack-IC

Tweezers

Masking Tape

Fig. S-1-2

Flat Pack-IC Desoldering Braid

Soldering IronFig. S-1-3

Fine TipSoldering Iron

SharpPin

Fig. S-1-4

3-3 TVN_SN

With Iron Wire:1. Using desoldering braid, remove the solder from

all pins of the flat pack-IC. When you use solder flux which is applied to all pins of the flat pack-IC, you can remove it easily. (Fig. S-1-3)

2. Affix the wire to a workbench or solid mounting point, as shown in Fig. S-1-5.

3. While heating the pins using a fine tip soldering iron or hot air blower, pull up the wire as the solder melts so as to lift the IC leads from the CBA contact pads as shown in Fig. S-1-5.



Note: When using a soldering iron, care must be taken to ensure that the flat pack-IC is not being held by glue. When the flat pack-IC is removed from the CBA, handle it gently because it may be damaged if force is applied.

2. Installation1. Using desoldering braid, remove the solder from

the foil of each pin of the flat pack-IC on the CBA so you can install a replacement flat pack-IC more easily.

2. The I mark on the flat pack-IC indicates pin 1. (See Fig. S-1-7.) Be sure this mark matches the pin 1 on the PCB when positioning for installation. Then presolder the four corners of the flat pack-IC. (See Fig. S-1-8.)

3. Solder all pins of the flat pack-IC. Be sure that none of the pins have solder bridges.

To Solid Mounting Point

Soldering Iron

Iron Wire

or

Hot Air Blower

Fig. S-1-5

Fine TipSoldering IronCBA

Flat Pack-ICTweezers

Fig. S-1-6

Example :

Pin 1 of the Flat Pack-ICis indicated by a " " mark. Fig. S-1-7

Presolder

CBA

Flat Pack-IC

Fig. S-1-8

3-4 TVN_SN

Instructions for Handling Semi-conductorsElectrostatic breakdown of the semi-conductors may occur due to a potential difference caused by electrostatic charge during unpacking or repair work.

1. Ground for Human BodyBe sure to wear a grounding band (1 M) that is properly grounded to remove any static electricity that may be charged on the body.

2. Ground for WorkbenchBe sure to place a conductive sheet or copper plate with proper grounding (1 M) on the workbench or other surface, where the semi-conductors are to be placed. Because the static electricity charge on clothing will not escape through the body grounding band, be careful to avoid contacting semi-conductors with your clothing.

CBA

Grounding Band

Conductive Sheet orCopper Plate

1M

1M

CBA

4-1 A91N3DC

CABINET DISASSEMBLY INSTRUCTIONS [LC195SLX, LC195EMX, LC195SSX, 19MF339B/F7]

1. Disassembly FlowchartThis flowchart indicates the disassembly steps for the cabinet parts, and the CBA in order to gain access to item(s) to be serviced. When reassembling, follow the steps in reverse order. Bend, route and dress the cables as they were.

2. Disassembly Method

Note:(1) Order of steps in procedure. When reassembling,

follow the steps in reverse order. These numbers are also used as the Identification (location) No. of parts in figures.

(2) Parts to be removed or installed.(3) Fig. No. showing procedure of part location(4) Identification of parts to be removed, unhooked,

unlocked, released, unplugged, unclamped, or desoldered. P = Spring, L = Locking Tab, S = Screw, H = Hex Screw, CN = Connector* = Unhook, Unlock, Release, Unplug, or Desoldere.g. 2(S-2) = two Screws (S-2), 2(L-2) = two Locking Tabs (L-2)

(5) Refer to the following "Reference Notes in the Table."

Step/Loc. No.

Part

Removal

Fig. No.

Remove/*Unhook/Unlock/Release/Unplug/Unclamp/

DesolderNote

[1] Stand Assembly D1 3(S-1) ---

[2] Rear Cabinet D1 9(S-2), 2(S-3), 2(S-4) ---

[3] Jack Holder(D) D2 (S-5) ---

[4] Digital Main CBA UnitD2D3

4(S-6), (S-7), 4(S-8), 2(H-1), *CN301, *CN302, *CN3902, Shield Box

---

[5] Jack Holder(A) D2 (S-9) ---

[1] StandAssembly

[2] Rear Cabinet [13] Junction-BCBA

[3] Jack Holder(D)

[12] Junction-CCBA

[7] Main CBA[10] Speaker Holder (s)

[6] Jack CBA

[11] Speaker (s) [8] Stand Holder

[4] Digital MainCBA Unit

[15] FunctionCBA

[9] LCD ModuleAssembly

[16] FrontCabinet

[5] Jack Holder(A)

[14] Junction-ACBA

[6] Jack CBA D2D34(S-10), CN702, *CN861A ---

[7] Main CBA D2D310(S-11), *CN102, *CN201, *CN862A, *CN1001, *CN1002

---

[8] Stand Holder D2 2(S-12), (S-13) ---

[9]LCD Module Assembly

D2 --------------- ---

[10] Speaker Holder(s) D2 4(S-14) ---

[11] Speaker(s) D2 --------------- ---

[12] Junction-C CBAD2D3 Desolder ---

[13] Junction-B CBAD2D3 Desolder ---

[14] Junction-A CBAD2D3 Desolder ---

[15] Function CBAD2D3 2(S-15) ---

[16] Front Cabinet D2 --------------- ---

(1)

(2)

(3)

(4)

(5)

Step/Loc. No.

Part

Removal

Fig. No.


DesolderNote

4-2 A91N3DC

[2] Rear Cabinet

(S-1)

[1] Stand Assembly

(S-2)

(S-2)(S-4)(S-2)

(S-2)

(S-3)

(S-3)(S-2)

Fig. D1

4-3 A91N3DC

(S-5)

(S-11)

(S-9)

(S-10)(S-10)

[6] Jack CBA

[4] Digital Main CBA Unit

[8] Stand Holder

[7] Main CBA

[9] LCD Module Assembly

[14] Junction-A CBA

[12] Junction-C CBA

[13] Junction-B CBA

[15] Function CBA

[16] Front Cabinet

[10] Speaker Holder(s)

[11] Speaker(s)

[3] Jack Holder(D)

[5] Jack Holder(A)

(S-11)

(S-13)

(S-14)

(S-14) (S-12)

Shield Box

(S-6)

(S-6)

(S-7)(H-1)

(S-11)

(S-8)

(S-15)

Fig. D2

4-4 A91N3DC

TV Cable Wiring Diagram

Main CBA

Jack CBA

CN201

CN1001

CN1002

CN3902

CN3702

CN3701

Digital Main CBA Unit

CN102

CN101CN101A

CN702

AC CORD

CN302

CN701

CN861A

CN861B CL861

CN862A

CN301

CN101B

Junction-C CBA

Junction-A CBAJunction-B CBA

Function CBA

To LCD Module Assembly

To Speaker

To Speaker

CN862B CL862


Fig. D3

4-5 A9170DC

CABINET DISASSEMBLY INSTRUCTIONS [22MF339B/F7, LC225SSX]

1. Disassembly FlowchartThis flowchart indicates the disassembly steps for the cabinet parts, and the CBA in order to gain access to item(s) to be serviced. When reassembling, follow the steps in reverse order. Bend, route and dress the cables as they were.

2. Disassembly Method

Note:(1) Order of steps in procedure. When reassembling,

follow the steps in reverse order. These numbers are also used as the Identification (location) No. of parts in figures.

(2) Parts to be removed or installed.(3) Fig. No. showing procedure of part location(4) Identification of parts to be removed, unhooked,

unlocked, released, unplugged, unclamped, or desoldered. P = Spring, L = Locking Tab, S = Screw, H = Hex Screw, CN = Connector* = Unhook, Unlock, Release, Unplug, or Desoldere.g. 2(S-2) = two Screws (S-2), 2(L-2) = two Locking Tabs (L-2)

(5) Refer to the following "Reference Notes in the Table."

Step/Loc. No.

Part

Removal

Fig. No.


DesolderNote

[1] Stand Assembly D1 3(S-1) ---

[2] Rear Cabinet D1 9(S-2), 3(S-3), 3(S-4) ---

[3] Jack Holder(D) D2 (S-5) ---

[4] Digital Main CBA UnitD2D3

4(S-6), (S-7), 4(S-8), 2(H-1), *CN301, *CN302, *CN3902, Shield Box

---

[5] Jack Holder(A) D2 (S-9) ---

[6] Jack CBA D2D34(S-10), CN702, *CN861A ---

[1] StandAssembly

[2] Rear Cabinet [13] Junction-BCBA

[3] Jack Holder(D)

[12] Junction-CCBA

[7] Main CBA[10] Speaker Holder (s)

[6] Jack CBA

[11] Speaker (s) [8] Stand Holder

[4] Digital MainCBA Unit

[15] FunctionCBA

[9] LCD ModuleAssembly

[16] FrontCabinet

[5] Jack Holder(A)

[14] Junction-ACBA

[7] Main CBA D2D310(S-11), *CN102, *CN201, *CN862A, *CN1550, *CN1650, *CN1750

---

[8] Stand Holder D2 2(S-12), (S-13) ---

[9]LCD Module Assembly

D2 --------------- ---

[10] Speaker Holder(s) D2 4(S-14) ---

[11] Speaker(s) D2 --------------- ---

[12] Junction-C CBAD2D3 Desolder ---

[13] Junction-B CBAD2D3 Desolder ---

[14] Junction-A CBAD2D3 Desolder ---

[15] Function CBAD2D3 2(S-15) ---

[16] Front Cabinet D2 --------------- ---

(1)

(2)

(3)

(4)

(5)

Step/Loc. No.

Part

Removal

Fig. No.


DesolderNote

4-6 A9170DC

[2] Rear Cabinet

(S-1)

[1] Stand Assembly

(S-2)

(S-2)(S-4)

(S-2)

(S-3)

(S-2)

Fig. D1

4-7 A9170DC

(S-5)

(S-11)

(S-9)

(S-10)(S-10)

[6] Jack CBA

[4] Digital Main CBA Unit

[8] Stand Holder

[7] Main CBA

[9] LCD Module Assembly

[14] Junction-A CBA

[12] Junction-C CBA

[13] Junction-B CBA

[15] Function CBA

[16] Front Cabinet

[10] SpeakerHolder(s)

[11] Speaker(s)

[3] Jack Holder(D)

[5] Jack Holder(A)

(S-11)

(S-13)

(S-14)

(S-14) (S-12)

Shield Box

(S-6)

(S-6)

(S-7)(H-1)

(S-11)

(S-8)

(S-15)

Fig. D2

4-8 A9170DC

TV Cable Wiring Diagram

Main CBA

Jack CBA

CN201CN1550

CN1650

CN1750

CN3902

CN3702

CN3701

Digital Main CBA Unit

CN102

CN101CN101A

CN702

AC CORD

CN302

CN701

CN861A

CN861B CL861

CN301

CN101B

Junction-C CBA

Junction-A CBAJunction-B CBA

Function CBA


To Speaker

To Speaker

CN862B CL862


CN862A

Fig. D3

5-1 FL9.0EA

ELECTRICAL ADJUSTMENT INSTRUCTIONSGeneral Note: CBA is abbreviation for Circuit Board Assembly.Note: Electrical adjustments are required after

replacing circuit components and certain mechanical parts. It is important to perform these adjustments only after all repairs and replacements have been completed. Also, do not attempt these adjustments unless the proper equipment is available.

Test Equipment Required1. NTSC Pattern Generator (Color Bar W/White

Window, Red Color, Dot Pattern, Gray Scale, Monoscope, Multi-Burst)

2. Remote control unit3. Color Analyzer

How to make the Service remote control unit:[LC195SLX, LC195EMX]Cut A portion of the attached remote control unit as shown in Fig. 1.

[22MF339B/F7, 19MF339B/F7]Cut A portion of the attached remote control unit as shown in Fig. 2.

[LC225SSX, LC195SSX]Cut A portion of the attached remote control unit as shown in Fig. 3.

How to set up the service mode:Service mode:1. Use the service remote control unit.2. Turn the power on.3. Press the service button on the service remote

control unit. The following screen appears.

Fig. 1

service button(There is a button under the plastic housing.)

A

Fig. 2

service button(There is a button under the plastic housing.)

A

Fig. 3

service button

A

Code : Pic code : MIPS :

***********-***

**-***-**-*****-***

Push 0key

Tuner : Safety :

****-*****-****

safety_Non

"*" differs depending on the models.

5-2 LC7NEA

1. Purity Check ModeThis mode cycles through full-screen displays of red, green, blue, and white to check for non-active pixels.1. Enter the Service mode.2. Each time pressing [7] button on the service

remote control unit, the display changes as follows.

2. VCOM Adjustment

1. Operate the unit for more than 20 minutes.2. Set the color analyzer and bring the optical

receptor to the center on the LCD-Panel surface after zero point calibration as shown above.Note: The optical receptor must be set perpendicularly to the LCD Panel surface.

3. Enter the Service mode. 4. Press [3] button on the service remote control unit. 5. Press [CHANNEL UP/DOWN] buttons on the

service remote control unit so that the color analyzer value becomes minimum.

[7] button

Note:When entering this mode, the default setting is White mode.

Purity Check Mode

[7] buttonRed mode

Green mode

Blue mode

Black mode[7] button

White mode

[7] button

[7] button

White 20% mode[7] button

Test Point Adj. Point

Screen [CHANNEL UP/DOWN ] buttonsM. EQ. Spec.

Color analyzer See belowFigure

Color Analyzer

To avoid interference from ambinent light, this adjustment should be performed in a dark room.

L = 3 cm

Perpendicularity

5-3 LC7NEA

The White Balance Adjustment should be performed when replacing the LCD Panel or Digital CBA.

3. White Balance AdjustmentPurpose: To mix red, green and blue beams correctly for pure white. Symptom of Misadjustment: White becomes bluish or reddish.

1. Operate the unit for more than 20 minutes.2. Input the White Raster(70%=70IRE, 40%=40IRE).

3. Set the color analyzer to the CHROMA mode and bring the optical receptor to the center on the LCD-Panel surface after zero point calibration as shown above.Note: The optical receptor must be set perpendicularly to the LCD Panel surface.

4. Enter the Service mode. Press [VOLUME DOWN] button on the service remote control unit and select C/D mode.

5. [CUTOFF]Press [1] button to select COR for Red Cutoff adjustment. Press [3] button to select COB for Blue Cutoff adjustment.[DRIVE]Press [4] button to select DR for Red Drive adjustment. Press [6] button to select DB for Blue Drive adjustment.

6. In each color mode, press [CHANNEL UP/DOWN] buttons to adjust the values of color.

7. Adjust Cutoff and Drive so that the color temperature becomes 12000K (x= 0.272 / y= 0.278 0.005).

Test Point Adj. Point Mode Input

Screen[VOLUME DOWN]button

[VIDEO1]C/D

White Raster (APL 70%)

or(APL 40%)

M. EQ. Spec.Pattern Generator,

Color analyzerx= 0.272 0.005y= 0.278 0.005

Figure

Color AnalyzerL = 3 cm

Perpendicularity

INPUT: WHITE 70%, 40%

To avoid interference from ambinent light, this adjustment should be performed in a dark room.

40%=40IRE 70%=70IRE100IRE100IRE

0IRE 0IREINPUT SIGNAL

LowLight

HightLight

6-1 A91F3INT

HOW TO INITIALIZE THE LCD TVThe purpose of initialization is to place the set in a new out of box condition. The customer will be prompted to select a language and program channels after the set has been initialized.To put the program back at the factory-default, initialize the LCD TV using the following procedure.1. Turn the power on.2. To enter the service mode, press the service

button on the service remote control unit. - To cancel the service mode, press [POWER]

button on the service remote control unit.3. Press [INFO] button on the service remote control

unit to initialize the LCD television.4. "INITIALIZED" will appear in the upper right of the

screen. "INITIALIZED" color will change to green from red when initializing is complete.

7-1 A91N3FW

FIRMWARE RENEWAL MODEEquipment Requireda. USB memoryb. Remote Control Unit

Firmware Update ProcedureNote: There are two states (the User Upgrade and

the Factory Upgrade) in firmware update.

The identification of User Upgrade and Factory Upgrade are done by the filename.1. Turn the power off and unplug the AC Cord.2. Insert the USB memory to the USB port as shown

below.

3. Plug the AC cord in the wall outlet and turn the power on.

4. The update will start and the following will appear on the screen.

Note: If the above screen isnt displayed, repeat from step 1.

The appearance shown in *1 is described as follows.

5. When the firmware update is completed, the following will appear on the screen.

Unplug the AC cord and kindly remove the USB memory from the USB port. Plug the AC cord in the wall outlet again and turn the power on.

Note:When the Factory Upgrade is used, after restarting TV, shift to initial screen menu in service mode. "INITIALIZED" will appear on the upper right of the screen. "INITIALIZED" color will change to green from red when initializing is complete.

User Upgrade Upgrade the firmware only. The setting values are not initialized.

Factory upgrade Upgrade the firmware and initialize the setting values.

Rear Cabinet

USB Memory

USB port

Software upgrade in progress. Please wait.Do not remove the USB device or turn the TV offwhile upgrade is in progress.

Software Upgrade

Downloading...0%

*1

Appearance State

Downloading... Downloading the firmware from the USB memory.

Writing... Writing the downloaded firmware in flash memory.Checking... Checking the new firmware.

Software Upgrade

The software upgrade is completed.Remove USB storage device, unplug and replug power code.

8-1 A91N3TR

TROUBLESHOOTING[ Power Supply Section ]

The power cannot be turned on.

The fuse blows out.

FLOW CHART NO.1

FLOW CHART NO.2

Is normal state restored when once unpluggedpower cord is plugged again several seconds?

Check if there is any leak or short-circuiting on theprimary circuit component, and service it if defective.(D601, D602, D603, D604, Q601, Q602, T601)

Yes

No

YesIs the fuse (F601) normal? See FLOW CHART No.2

No

Yes

Is the INV+31V line voltage normal?No

Check each rectifying circuit of the secondarycircuit and service it if defective.

Check the presence that the primary componentis leaking or shorted and service it if defective.

Check the presence that the rectifying diode or circuit is shorted in each rectifying circuit of secondary side, and service it if defective.

After servicing, replace the fuse.

When the output voltage fluctuates.FLOW CHART NO.3

Does the photocoupler circuit on the secondary side operate normally?

No

Yes

Check IC601, D633, Q631 and their periphery circuit, and service it if defective.

When buzz sound can be heard in the vicinity of power circuit.FLOW CHART NO.4

Check if there is any short-circuit on the rectifying diode and the circuit in each rectifying circuit of the secondary side,and service it if defective. (IC631, Q201, Q205, Q206, Q634, Q635, Q636, Q637, Q640, Q641, Q643, D631, D632, D636, D638, D639, D641, D643)

Check if there is any leak or short-circuit on the loaded circuit, and service it if defective.

INV+31V is not output.FLOW CHART NO.5

Is approximately +31V voltage supplied to thecathode of D632?

No

Yes

Check C632, D632, D633 and their periphery circuit, and service it if defective.

Check IC601, D608, D610 and their periphery, circuit and service it if defective.

8-2 A91N3TR

Check Q202, Q203, D203, P-ON-H1 line and their periphery circuit, and service it if defective.

PANEL+24.5V is not output.FLOW CHART NO.6

Is approximately +30V voltage supplied to the collector of Q205?

No

Yes

See FLOW CHART No.5

Replace Q201.

Is approximately +13V voltage supplied to thebase of Q201?

Yes

No Check Q202, Q203, D201, D202, D210 and theirperiphery circuit, and service it if defective.

No

PANEL+13V is not output.FLOW CHART NO.7

Is approximately +15V voltage supplied to thecollector of Q201?

Yes


P-ON+7V is not output.FLOW CHART NO.8


Check C641, D641 and their periphery circuit, and service it if defective.

Yes

No

Check if there is any leak or short-circuit onthe loaded circuit, and service it if defective.

See FLOW CHART No.8

P-ON+5V is not output. (PANEL+13V is outputted normally.)FLOW CHART NO.9

Is approximately +6.8V voltage supplied to thecollector of Q635?

Is approximately +6V voltage supplied to the base of Q635 and the base of Q636?

NoYes

Yes

Check D659 and their periphery circuit, and service it if defective.

No

Replace Q635 and Q636.

8-3 A91N3TR

See FLOW CHART No.8

TUNER+5V is not output. (PANEL+13V is outputted normally.)FLOW CHART NO.10

Is approximately +6.7V voltage supplied to thecollector of Q637?

Is approximately +6V voltage supplied to the base of Q637?

NoYes

Yes


No

Replace Q637.

P-ON+3.3V(PANEL+3.3V) is not output.FLOW CHART NO.12


Is the "H" signal (approximately +3.5V) inputted to the base of Q640?

NoYes

Yes

Check C639, D639 and their periphery circuit, andservice it if defective.

Check Q638, Q639, P-ON-H2 line and their periphery circuit, and service it if defective.

No

FLOW CHART NO.13

Replace Q640.

P-ON+3V is not output.FLOW CHART NO.11


Yes

No

Check if there is any leak or short-circuit onthe loaded circuit, and service it if defective.


P-ON+9V is not output. (PANEL+13V is outputted normally.)


Is approximately +10V voltage supplied to thebase of Q641?

NoYes

Yes



No

Replace Q641.

8-4 A91N3TR

Is approximately +5V voltage supplied to Pin(1) of IC631?

Yes

NoCheck Q634, D650 and their periphery circuit, andservice it if defective.

See FLOW CHART No.5No

AL+3.3V is not output.FLOW CHART NO.14


Yes

Replace IC631.


Check Q202, Q203, D204, P-ON-H1 line and their periphery circuit, and service it if defective.

Replace Q206.

Is approximately -8V voltage supplied to thebase of Q206?

Yes

No

No

LCD-7.1V is not output.FLOW CHART NO.15

Is approximately -9V voltage supplied to theAnode of D636?

Yes

8-5 A91N3TR

[ Video Signal Section ]

No

Is the "L" pulse sent out Pin(1) terminal of remote control receiver (RS101) when the infrared remote control is activated?

Check the line between Pin(1) terminal of remote control receiver(RS101) and Pin(25) of CN301, and service it if defective.

Yes

Is the "L" pulse supplied to Pin(25) of CN301?Yes

Is 3.3V voltage supplied to Pin(2) terminal of theremote control receiver (RS101)?

No

FLOW CHART NO.2

Operation is possible from the unit.

Check AL+3.3V line and service it if defective.

NoReplace the remote control receiver(RS101) or the remote control unit.

Yes

Replace Digital Main CBA Unit.

When pressing each switches (SW104~SW109) do the voltage of Pin(29) of CN302 increase?

Yes

The key operation is not functioning.FLOW CHART NO.1

Are the contact point and installation state of the key switches (SW104~SW109) normal?

Re-install the switches (SW104~SW109) correctly or replace the poor switch.

Check the switches (SW104~SW109) and their periphery, and service it if defective.

Yes


No

No

No operation is possible from the remote control unit.

Picture does not appear normally.(Video input)FLOW CHART NO.3

Are the video signal inputted to Pin(4) of CN302?Yes

Check the line between Pin(4) of CN302 and JK752, and service it if defective.

No

Replace Digital Main CBA Unit or LCD ModuleAssembly.

8-6 A91N3TR

Picture does not appear normally.(S-Video input)FLOW CHART NO.5

Are the video signal outputted to Pin(6, 8) of CN302? Check the line between Pin(6, 8) of CN302 and JK751, and service it if defective.

Check the line between Pin(26, 28) of CN302 andPin(10, 11) of TU302, and service it if defective.

Yes

No

No

Picture does not appear normally.(Tuner input)FLOW CHART NO.4

Are the DIF signal inputted to Pin(26,28) of CN302?Yes



Pin(6): S-VIDEO-CPin(8): S-VIDEO-Y

Picture does not appear normally.(Y/Pb/Pr input)FLOW CHART NO.6

Are the video signal inputted to Pin(15, 17, 19) of CN302?

Check the line between Pin(15, 17, 19) of CN302 and input terminals(JK731, JK732, JK733), and service it if defective.

Yes

No


Pin(15): VIDEO-YPin(17): VIDEO-PbPin(19): VIDEO-Pr

8-7 A91N3TR

[ Audio Signal Section ]

Check SP861,SP862 and their periphery circuit,and service it if defective.

Are the audio(L/R) signals inputted to Pin(1, 9)of IC801?

Yes

Yes

Yes

Audio is not outputted normally.(Audio input)FLOW CHART NO.1


Check the line between Pin(2, 15) of IC771 and input terminal(JK753, JK754), and service it if defective.

No

No

Are the audio(L/R) signals outputted to Pin(4, 6)of IC801?

Check IC801 and their periphery circuit, and service it if defective.

No

Yes

Are the audio(L/R) signals inputted to Pin(6, 8) of CN301?


Check the line between Pin(1, 7) of IC803 and Pin(1, 9) of IC801, and service it if defective.


NoYes

Check the line between Pin(6, 8) of CN301 and Pin(3, 5) of IC803, and service it if defective.


NoYes

Replace IC803

No



Yes

Yes

Yes

Audio is not outputted normally.(Component Audio input)FLOW CHART NO.2



No

No



No

Yes





NoYes



NoYes

Replace IC803

No

8-8 A91N3TR



Yes

Yes

Yes

Audio is not outputted normally.(Tuner input)FLOW CHART NO.3

Are the DIF signals outputted to Pin(26, 28) of CN302? Check TU302 and their periphery circuit, and service it if defective.

No

No



No

Yes





NoYes



NoYes

Replace IC803

No



Yes

Yes

Yes

Audio is not outputted normally.(HDMI Audio input)FLOW CHART NO.4



No

No



No

Yes





NoYes



NoYes

Replace IC803

No

8-9 A91N3TR



Yes

Yes

Yes

Audio is not outputted normally.(PC Audio input)FLOW CHART NO.5


Check the line between Pin(1, 12) of IC771 and input terminal(JK711), and service it if defective.

No

No



No

Yes





NoYes



NoYes

Replace IC803

No

9-1

BLOCK DIAGRAMSSystem Control Block Diagram

A91N3BLS

AC18

IC33

01(M

AIN

MICR

O C

ONT

ROLL

ER)

DIG

ITA

L M

AIN

CBA

UNI

TM

AIN

CBA

CN30

2CN

3702

CN37

02CN

302

CLKO

UTCL

KIN

X310

125

MH

zO

SCN

1N

2

SCL

SDA

4 5

TU30

2(T

UNER

UNI

T)

TO

INVE

RTER

BLO

CK

DIA

GRA

M

TO

POW

ER S

UPPL

Y BL

OCK

DIA

GRA

M

PROT

ECT3

AE5

VCO

M-P

WM

AC14

PROT

ECT2

AD4

PROT

ECT1

AD5

KEY-

IN1

AC5

BACK

LIG

HT-SW

AB16

E1 E2

P-O

N-H2

AB13

REM

OTE

R22

P-O

N-H1

PROT

ECT2

PROT

ECT1

P-O

N-H2

P-O

N-H1

R23

CN10

2

CN30

1

Q172

CN37

01

AB23

BACK

LIG

HT-AD

J

IC31

01 (M

EMOR

Y)

SCK SI SO

AB25

AB24

AC25

AC24

6 5 2 1E1

13

AC19

SCL

SDA

CN30

1CN

3701

CS WP

SCK

SIN

SOUT

CS WP

2222

SCL

2121

SDA

1111

PROT

ECT1

1515

PROT

ECT2

55

PROT

ECT3

2929

VCO

M-P

WM

2626

BACK

LIGHT

-SW

2828

BACK

LIGHT

-AD

J

KEY-

IN1

2929

P-O

N-H1

99

REM

OTE

2525

P-O

N-H2

11

TO AU

DIO

BLO

CK

DIA

GRA

MAU

DIO

-MUT

E

INPU

T0IN

PUT1

AUD

IO-M

UTE

INPU

T0IN

PUT1

AB9

PROT

ECT3

BACK

LIGHT

-SW

BACK

LIGHT

-AD

J

IC20

1,Q2

07,

Q208

,Q20

9D

RIV

EVC

OM

KEY

SWIT

CH

FUNC

TIO

N CB

A

CN10

1BREM

OTE

SENS

OR

RS1

01

AL+3

.3V

D10

4PO

WER

STAN

DBY

D10

3

LED

14

4

CN10

1AR

EMOT

E2

2P-

ON-

H15

5

JUNC

TIO

N -A

CBA

CN10

1

KEY-

IN1

66

LED

14

4

REM

OTE

22

P-O

N-H1

55

KEY-

IN1

66

Q171

LED

1F1

LED

127

27

9-2 A91N3BLV

Video Block Diagram

DIG

ITA

L M

AIN

CBA

UNI

T

COM

PONE

NT-Y-

IN

COM

PONE

NT-Pb

-IN

COM

PONE

NT-Pr

-IN

JK73

1

JK73

2

JK73

3

VID

EO-IN

44

S-VI

DEO

-C-IN

66

S-VI

DEO

-Y-IN

88

S-VI

DEO

-SW

55

COM-

VIDE

O-Y-I

N15

15CO

M-VID

EO-P

b-IN

1717

COM-

VIDEO

-Pr-IN

1919

JACK

CBA

CN70

2CN

701

VID

EO-IN

27S-

VIDE

O-C

-IN28

S-VI

DEO

-Y-IN

26

27 28 26JK

751

S-VI

DEO

-IN

CY

JK75

2VI

DEO

-IN

S-VI

DEO-

SW-IN

1919

COM-

VIDE

O-Y-

IN20

20CO

M-VI

DEO-

Pb-IN

1818

COM-

VIDE

O-Pr

-IN16

16

MA

IN C

BA

TU30

2

DIF

-OUT

111

DIF

-OUT

210

(TUN

ER U

NIT) I

F-AG

C9

CN30

2CN

3702

DIF

-OUT

126

26

IF-A

GC

2424

DIF

-OUT

228

28

DIF

-OUT

1D

IF-O

UT2

IF-A

GC

CN30

2CN

3702

VID

EO-IN

S-VI

DEO

-C-IN

S-VI

DEO

-Y-IN

S-VI

DEO

-SW

COM-

VIDE

O-Y-I

N

COM-

VIDEO

-Pr-IN

COM-

VIDEO

-Pb-I

N

JK37

03PC

-RG

BIN

TO D

IGIT

ALSI

GNA

L PR

OCE

SSBL

OCK

DIA

GRA

M

WF1

WF2

WF3

WF4

WF5

WF6

VID

EO S

IGNA

LA

UDIO

SIG

NAL

1 2 3

VGA-

R-IN

VGA-

G-IN

VGA-

B-IN

9-3

Audio Block Diagram

A91N3BLA

IC77

1(A

UDIO

SEL

ECTO

R)

HD

MI-

AUD

IO(L)

-IN

HD

MI-

AUD

IO(R

)-IN

JK72

1

JK72

2

COM

PONE

NT-

AUD

IO(L)

-IN

COM

PONE

NT-

AUD

IO(R

)-IN

JK74

1

JK74

2

PC-A

UDIO

-INJK

711

2 4 1 5 15 11 12 14JACK

CBA

AUD

IO(L)

-IN AU

DIO

(R)

-INJK

753

JK75

4

CN37

02CN

302

AUD

IO(L)

1313

AUD

IO(R

)11

11CN

702

CN70

1

CN70

2CN

701

AUD

IO(L)

1313

AUD

IO(R

)15

15CN

3702

CN30

2IN

PUT1

1010

INPU

T012

12 CN3

701

CN30

1

AMP(

L)-OU

T6

6AM

P(R)

-OUT

88

MA

IN C

BAD

IGIT

AL

MA

IN C

BA U

NIT

8

4 6

IC80

1 (A

UDIO

AM

P)

1 9

MUT

E CO

NTRO

L

DR

IVE

CN30

2CN

3702

AUD

IO-M

UTE

2020

JK84

1D

IGIT

ALAU

DIO

-OUT

(COA

XIAL

)Q8

41

Q771

Q722

BUFF

ER

SPDI

F2

2

SPDI

F23

23

Q801

CONT

ROL

LOG

IC

3

109

13

IC80

3(O

P AM

P)

13

75

DR

IVE

IC38

01(D

/A C

ONVE

RTER

)

D/A CO

NVER

TER

15148 7 6 5

(L-CH

)(R

-CH)

AUDI

O(L)

AUDI

O(R

)

TO

DIG

ITAL

SIG

NAL

PRO

CESS

BLO

CKD

IAG

RAM

TO

DIG

ITAL

SIG

NAL

PRO

CESS

BLO

CKD

IAG

RAM

INPU

T1

LRCL

KBC

LKAD

ATA0

ACLK

SPDI

F

INPU

T0AU

DIO

-MUT

E

TO

SYST

EMCO

NTRO

LBL

OCK

DIA

GRA

M

AUD

IO S

IGNA

L

WF7

BUFF

ERQ7

73 BUFF

ERQ7

74

INPU

T124

24IN

PUT0

2222

HEAD

PHON

E(R)3

,43,

4HE

ADPH

ONE(L

)9,1

09,

10SP

(R)

1,2

1,2

JK85

1H

EAD

PHO

NEJA

CK

JUNC

TIO

N-B

CBA

CL86

2CN

862B

CN86

2ASP

862

SPEA

KER

R-C

H

1 2SP

(R)

1,2

1,2

SP-G

ND3,

43,

4

JUNC

TIO

N-C

CBA

CL86

1CN

861B

CN86

1ASP

861

SPEA

KER

L-CH

1 2SP

(L)1,

21,

2SP

-GND

3,4

3,4

9-4

Digital Signal Process Block Diagram[LC195SLX(Serial No.:DS1A**********, DS2A**********, TH3A**********, TH4A**********), LC195EMX(SerialNo.:DS1A**********, DS2A**********, TH3A**********, TH4A**********), LC195SSX(Serial No.:DS1A**********),LC225SSX, 22MF339B/F7, 19MF339B/F7(Serial No.:DS1A**********)]

A91N3BLD

DIG

ITA

L M

AIN

CBA

UNI

TIC

3301

(DIG

ITAL

SIG

NAL

PRO

CESS

)IC

3901

(TIN

ING

CONT

ROLL

ER)

LCD

MO

DULE

ASS

EMBL

YCN

3902

LLV1

(+)21

LLV1

(-)20

LLV0

(+)23

LLV0

(-)22

LLV2

(+)19

LLV2

(-)18

LLV3

(+)13

LLV3

(-)12

LLV4

(+)11

LLV4

(-)10

LLV5

(+)9

LLV5

(-)8

LLVC

LKP

16LL

VCLK

N15

TP6

POL

5CP

V4

OE1

3ST

V1

48 47 46 45 44 43 38 37 36 35 34 33 42 41 63 64 30 31 32

8 7 10 9 12 11 16 15 14 13

DATA

PRO

CESS

ING

FRC

LIN

E BU

FFER

GAM

MA

CORR

ECTO

R

LVD

SR

X

LVD

S O

UTPU

T

DATA

INPU

T LA

TCH

AD23

AD24

AE23

AF23

AF22

AE22

AD21

AD22

AF24

AE24

LVD

STX

DIG

ITAL

SIG

NAL

PRO

CESS

A/D

CONV

ERTE

R

S-VI

DEO

-Y-IN

SW

V1 U2U1

S-VI

DEO

-C-IN

U3

VID

EO-IN

VGA-

R-IN

VGA-

G-IN

VGA-

B-IN

V3T3T1T2

COM

-VID

EO-P

r-IN

COM

-VID

EO-P

b-IN

COM

-VID

EO-Y

-IN

AA3

IF-A

GC

HD

MI-I

N1

HD

MI-I

N2

JK37

01

TMD

S-D0

(+)TM

DS-

D0(-)

TMD

S-D1

(+)TM

DS-

D1(-)

TMD

S-D2

(+)TM

DS-

D2(-)

SDA

SCL

7 9 4 6 1 3 10 12 16 15 7 9 4 6 1 3 10 12 16 15

JK37

02

TMD

S-D0

(+)TM

DS-

D0(-)

TMD

S-D1

(+)TM

DS-

D1(-)

TMD

S-D2

(+)TM

DS-

D2(-)

TMD

S-CL

OCK

(+)TM

DS-

CLO

CK(-)

SDA

SCL

A9 B9 C8 C9 B8 A8 B10

A10

A11

B11

A5 B5 C4 C5 B4 A4 B6 A6 A7 B7

TMD

S-CL

OCK

(+)TM

DS-

CLO

CK(-)

DEM

ODU

LATO

R/M

PEG

DEC

ODE

RAE

2

AF7

AUD

IO I/

FTO

AU

DIO

BLO

CK D

IAG

RAM

ACLK

BCLK

LRCL

K

ADAT

A0SP

DIF

AD9

AD12

AD10

AD11

AC10

DATA

(0-15

)

ADD

ESS(

0-12)

IC32

01

A13-1

5,A18

,A2

1-23,B

13-15

,B1

7,B19

-23C1

5,C17

-19,

C23,C

24,D

14,

D15,D

17-19

,D2

2,D23

B1,B

9,C2,C

8,D1

,D3,D

7,D9,

F1,F9

,G2,G

8,H1

,H3,H

7,H9

M2,M

3,M7,M

8,N2

,N3,N

7,N8,

P2,P

3,P7,P

8,R2(

DDR2

SDR

AM)

HD

MI

I/F

HD

MI-I

N3

WIT

H H

DM

I-IN

37 9 4 6 1 3 10 12 16 15

JK37

04

TMD

S-D0

(+)TM

DS-

D0(-)

TMD

S-D1

(+)TM

DS-

D1(-)

TMD

S-D2

(+)TM

DS-

D2(-)

TMD

S-CL

OCK

(+)TM

DS-

CLO

CK(-)

SDA

SCL

B1 B2 C1 C2 D1 D2 A1 A2 A3 B3

AUD

IOD

ECO

DER

DIF

-OUT

1D

IF-O

UT2

IF-A

GC

TO VI

DEO

BLO

CK D

IAG

RAM

VID

EOD

ECO

DER

AF2

S-VI

DEO

-SW

C6S-

VIDE

O-S

W

M2

AUD

IO(R

)M

1AU

DIO

(L)

VID

EO S

IGNA

LA

UDIO

SIG

NAL

9-5

Digital Signal Process Block Diagram[LC195SLX(SerialNo.:DS3A**********,DS4A**********,TH5A**********,TH6A**********),LC195EMX(SerialNo.:DS3A**********,DS4A**********,TH5A**********,TH6A**********),19MF339B/F7(Serial No.:DS2A**********),LC195SSX(Serial No.:DS2A**********),]

A9AN3BLD

DIG

ITA

L M

AIN

CBA

UNI

TIC

3301

(DIG

ITAL

SIG

NAL

PRO

CESS

)LC

D M

ODU

LEA

SSEM

BLY

DIG

ITAL

SIG

NAL

PRO

CESS

A/D

CONV

ERTE

R

S-VI

DEO

-Y-IN

SW

V1 U2U1

S-VI

DEO

-C-IN

U3

VID

EO-IN

VGA-

R-IN

VGA-

G-IN

VGA-

B-IN

V3T3T1T2

COM

-VID

EO-P

r-IN

COM

-VID

EO-P

b-IN

COM

-VID

EO-Y

-IN

AA3

IF-A

GC

HD

MI-I

N1

HD

MI-I

N2

JK37

01

TMD

S-D0

(+)TM

DS-

D0(-)

TMD

S-D1

(+)TM

DS-

D1(-)

TMD

S-D2

(+)TM

DS-

D2(-)

SDA

SCL

7 9 4 6 1 3 10 12 16 15 7 9 4 6 1 3 10 12 16 15

JK37

02

TMD

S-D0

(+)TM

DS-

D0(-)

TMD

S-D1

(+)TM

DS-

D1(-)

TMD

S-D2

(+)TM

DS-

D2(-)

TMD

S-CL

OCK

(+)TM

DS-

CLO

CK(-)

SDA

SCL

A9 B9 C8 C9 B8 A8 B10

A10

A11

B11

A5 B5 C4 C5 B4 A4 B6 A6 A7 B7

TMD

S-CL

OCK

(+)TM

DS-

CLO

CK(-)

DEM

ODU

LATO

R/M

PEG

DEC

ODE

RAE

2

AF7

AUD

IO I/

FTO

AU

DIO

BLO

CK D

IAG

RAM

ACLK

BCLK

LRCL

K

ADAT

A0SP

DIF

AD9

AD12

AD10

AD11

AC10

DATA

(0-15

)

ADD

ESS(

0-12)

IC32

01

A13-1

5,A18

,A2

1-23,B

13-15

,B1

7,B19

-23C1

5,C17

-19,

C23,C

24,D

14,

D15,D

17-19

,D2

2,D23

B1,B

9,C2,C

8,D1

,D3,D

7,D9,

F1,F9

,G2,G

8,H1

,H3,H

7,H9

M2,M

3,M7,M

8,N2

,N3,N

7,N8,

P2,P

3,P7,P

8,R2(

DDR2

SDR

AM)

HD

MI

I/F

HD

MI-I

N3

WIT

H H

DM

I-IN

37 9 4 6 1 3 10 12 16 15

JK37

04

TMD

S-D0

(+)TM

DS-

D0(-)

TMD

S-D1

(+)TM

DS-

D1(-)

TMD

S-D2

(+)TM

DS-

D2(-)

TMD

S-CL

OCK

(+)TM

DS-

CLO

CK(-)

SDA

SCL

B1 B2 C1 C2 D1 D2 A1 A2 A3 B3

AUD

IOD

ECO

DER

DIF

-OUT

1D

IF-O

UT2

IF-A

GC

TO VI

DEO

BLO

CK D

IAG

RAM

VID

EOD

ECO

DER

AF2

S-VI

DEO

-SW

C6S-

VIDE

O-S

W

M2

AUD

IO(R

)M

1AU

DIO

(L)

VID

EO S

IGNA

LA

UDIO

SIG

NAL

CN39

02

LLV1

P21

LLV1

N20

LLV0

P23

LLV0

N22

LLV2

P19

LLV2

N18

LLV3

P13

LLV3

N12

LLV4

P11

LLV4

N10

LLV5

P9

LLV5

N8

LLVC

LKP

16LL

VCLK

N15

TP6

POL

5CP

V4

OE

3ST

V1

AD23

AD24

AE23

AF23

AF22

AE22

AD21

AE21

AF20

AE20

AF21

AD22

AF24

AE24

W25

W23 Y24

Y23

Y22

LVD

S TX

TPPO

LCP

VO

EST

V

9-6

Inverter Block Diagram[LC195SLX, LC195EMX, LC195SSX, 19MF339B/F7]

A91N3BLINV

MA

IN C

BA

PROT

ECT3

BACK

LIGHT

-AD

JBA

CKLI

GHT-

SWTO

SY

STEM

CONT

ROL

BLO

CK

DIA

GRA

M

IC10

01(P

WM

CONT

ROL)

BACK

LIG

HT1 2

CN10

02

Q100

1,

Q100

7,

Q101

6

Q101

4

Q100

5

Q100

4,Q1

006,

Q1

008,

Q101

2Q1

002,

Q1

011

Q102

3,Q1

024

Q102

2

DR

IVE

Q101

0,

Q101

7,

Q101

8

DR

IVE

OSC

PWM

CONT

ROL

LOGI

C

VCC

DTC

CURR

ENT

CONT

ROL

SWITC

H

CURR

ENT

CONT

ROL

SWITC

H

Q100

9OV

ER VO

LTAG

EPR

OTEC

TOR

Q101

5OV

ER VO

LTAG

EPR

OTEC

TOR

11 8

56

1534

VREF

1412 16 2 1

SW+1

6V

SW

SW+1

6V

Q101

9

Q100

3

LCD

MO

DULE

ASS

EMBL

Y

T100

2

4 1 3

78 6 5

2BA

CKLI

GHT

1 2

CN10

01

IC10

02

(COM

PARA

TOR) 6

75 2 3

1

PAN

EL+1

5V

INV+

31V

Q100

5CU

RREN

TCO

NTRO

LSW

ITCH

*1

*2

*1LC

195S

LX (S

erial N

o. : D

S1A*

******

***),

LC19

5EM

X (S

erial

No. : D

S1A*

******

***),

LC19

5SSX

(Seri

al No.

: DS1

A****

******

)*2

LC19

5SLX

(Seri

al No.

: DS2

A****

******

, DS3

A****

******

, DS4

A****

******

,TH

3A**

****

****

, TH4

A***

****

***,

TH5A

****

****

** ,T

H6A*

****

****

*),LC

195E

MX

(Seri

al No.

: DS2

A****

******

, DS3

A****

******

, DS4

A****

******

,TH

3A***

******

*, TH

4A***

******

*, TH

5A***

******

*, TH

6A***

******

*)LC

195S

SX (S

erial

No. : D

S2A*

******

***),

19M

F339

B/F7

9-7

Inverter Block Diagram[22MF339B/F7, LC225SSX]

A9170BLINV

MA

IN C

BA

IC10

01

(PW

M CO

NTRO

L)

BACK

LIG

HT1 2 1 2

CN16

50

CN17

50BA

CKLI

GHT

T160

0

Q100

6,

Q100

9,

Q101

0

Q100

3

Q175

0

Q175

1

Q165

0

Q165

1

Q150

0

Q100

4,Q1

011,

Q1

013,

Q101

4Q1

001,

Q100

2

Q102

3,Q1

024

Q160

0

T170

0

DR

IVE

Q100

5,

Q100

7,

Q100

8

DR

IVE

OSC

PWM

CONT

ROL

LOGI

C

VCC

DTC

CURR

ENT

CONT

ROL

SWITC

H

CURR

ENT

CONT

ROL

SWITC

H

Q170

0CU

RREN

TCO

NTRO

LSW

ITCH

OVER

VO

LTAG

EPR

OTEC

TOR

OVER

VO

LTAG

EPR

OTEC

TOR

OVER

VO

LTAG

EPR

OTEC

TOR

OVER

VO

LTAG

EPR

OTEC

TOR

Q155

0OV

ER VO

LTAG

EPR

OTEC

TOR

Q155

1OV

ER VO

LTAG

EPR

OTEC

TOR

11 8

56

153412VR

EF14 16 2 1

SW

SW+1

2.5V

Q140

1

Q140

2

LCD

MO

DULE

ASS

EMBL

Y

T150

0

3 1 4

78 6 5

2BA

CKLI

GHT

1 2

CN15

50

IC10

02

(COM

PARA

TOR) 6

75 2 3

1

13 1214

PAN

EL+1

5V

INV+

31V

TO

SYST

EM

CONT

ROL

BLO

CK

DIA

GRA

M

PROT

ECT3

BACK

LIGHT

-SW

BACK

LIGHT

-AD

J

3 1 4

78 6 5

23 1 4

78 6 5

2

SW+1

2.5V

9-8

Power Supply Block Diagram[LC195SLX, LC195EMX, LC195SSX, 19MF339B/F7]

A91N3BLP

DIG

ITA

L M

AIN

CBA

UNI

T

HOT

COLD

MA

IN C

BA

HO

T CI

RCUI

T. B

E CA

REFU

L.

Q602

SWIT

CHIN

GCO

NTRO

L

14 3

2

IC60

1

T601

2LI

NE

FILT

ER

L601

AC60

1AC

CO

RD

BRID

GE

REC

TIFI

ER

D60

1- D

604

43

11 15 10 9 16 14 13 12

7 6

FEED

BACK

Q601

SWIT

CHIN

G

Q631

CN20

1

CN30

1CN

3701

Q202

,Q20

3SW

ITCH

ING

Q206

SW-7.

1V

Q402

Q201

,D20

2SW

+13V

Q634

IC63

1+

3.3V

REG

.2

3

Q633

Q638

,Q63

9

Q635

,Q63

6SW

+5V

Q637 SW

+5VQ

641

SW+9

V

Q640

,D66

2SW

+3.3

V

4A/1

25V

F601

4A

/125

V

P-O

N-H1

TO SY

STEM

CO

NTRO

L BL

OCK

DIA

GRA

M

P-O

N-H2

+5V

REG

.

PRO

TECT

2PR

OTE

CT1

SWIT

CHIN

G

INV+

33V

P-O

N+5V

AL+3

.3V

SP+1

4VTU

NER+

5V

P-O

N+9V

P-O

N+3.

3VPA

NEL

+13V

19,2

021

,22

13,1

4

P-O

N+3V

P-O

N+7V

AL+3

.3V

P-O

N+3.

3VP-

ON+

5V

LCD

MO

DULE

ASS

EMBL

Y

PAN

EL-7

.1V

8

P-O

N+3.

3V19

,20

P-O

N+3.

3V6,

7PA

NEL

+24.

5V4

PAN

EL+1

3V2,

3

AL+3

.3V

21,2

21610

P-O

N+7V

16P-

ON+

3V10

P-O

N+5V

13,1

4

Q205

SW+2

4.5V

VCO

M10

VCO

M

PAN

EL+1

5V

CAUT

ION

!Fi

xed

volta

ge (o

r Auto

volta

ge se

lectab

le) po

wer s

upply

circu

it is u

sed i

n this

unit.

If M

ain

Fuse

(F60

1) is

blown

, che

ck to

see t

hat a

ll com

pone

nts in

the p

ower

supp

lyci

rcui

t are

not

def

ectiv

e be

fore

you

con

nect

the

AC p

lug

to th

e AC

pow

er s

uppl

y.O

ther

wise

it m

ay c

ause

som

e co

mpo

nent

s in

the

powe

r sup

ply

circu

it to

fail.

For c

ontin

ued

prot

ectio

n ag

ains

t risk

of f

ire,

repl

ace

only

with

sam

e ty

pe 4

A, 1

25V

fuse

.CA

UTIO

N ! :

ATT

ENTI

ON

: Utili

ser u

n fu

sible

de

rech

ange

de

mm

e ty

pe d

e 4

A, 1

25V.

4A/1

25V

NO

TE:

The

volta

ge fo

r par

ts in

hot

circ

uit i

s m

easu

red

usin

gho

t GND

as

a co

mm

on te

rmin

al.

9-9

Power Supply Block Diagram[22MF339B/F7, LC225SSX]

A9170BLP

HOT

COLD

MA

IN C

BA

HO

T CI

RCUI

T. B

E CA

REFU

L.

Q602

SWIT

CHIN

GCO

NTRO

L

14 3

2

IC60

1

T601

2LI

NE

FILT

ER

L601

AC60

1AC

CO

RD

BRID

GE

REC

TIFI

ER

D60

1- D

604

43

11 15 10 9 16 14 13 12

7 6

FEED

BACK

Q601

SWIT

CHIN

G

Q631

CN20

1

CN30

1CN

3701

Q202

,Q20

3SW

ITCH

ING

Q632

Q206

SW-7.

1V

Q402

Q201

,D20

2SW

+13V

Q634

IC63

1+

3.3V

REG

.2

3

Q633

Q638

,Q63

9

Q635

,Q63

6SW

+5V

Q637 SW

+5VQ

641

SW+9

V

Q640

,D66

2SW

+3.3

V

4A/1

25V

F601

4A

/125

V

P-O

N-H1

TO SY

STEM

CO

NTRO

L BL

OCK

DIA

GRA

M

P-O

N-H2

+5V

REG

.

PRO

TECT

2PR

OTE

CT1

SWIT

CHIN

G

INV+

31V

P-O

N+5V

AL+3

.3V

SP+1

4VTU

NER+

5V

P-O

N+9V

P-O

N+3.

3VPA

NEL

+13V

PAN

EL+1

5V

19,2

021

,22

13,1

4

P-O

N+3V

P-O

N+7V

AL+3

.3V

P-O

N+3.

3VP-

ON+

5V

LCD

MO

DULE

ASS

EMBL

Y

DIG

ITA

L M

AIN

CBA

UNI

T

PAN

EL-7

.1V

8

P-O

N+3.

3V19

,20

P-O

N+3.

3V6,

7PA

NEL

+24.

5V4

PAN

EL+1

3V2,

3

AL+3

.3V

21,2

21610

P-O

N+7V

16P-

ON+

3V10

P-O

N+5V

13,1

4

Q205

SW+2

4.5V

VCO

M10

VCO

M

SW+1

2.5V

CAUT

ION

!Fi

xed

volta

ge (o

r Auto

volta

ge se

lectab

le) po

wer s

upply

circu

it is u

sed i

n this

unit.

If M

ain

Fuse

(F60

1) is

blown

, che

ck to

see t

hat a

ll com

pone

nts in

the p

ower

supp

lyci

rcui

t are

not

def

ectiv

e be

fore

you

con

nect

the

AC p

lug

to th

e AC

pow

er s

uppl

y.O

ther

wise

it m

ay c

ause

som

e co

mpo

nent

s in

the

powe

r sup

ply

circu

it to

fail.

For c

ontin

ued

prot

ectio

n ag

ains

t risk

of f

ire,

repl

ace

only

with

sam

e ty

pe 4

A, 1

25V

fuse

.CA

UTIO

N ! :

ATT

ENTI

ON

: Utili

ser u

n fu

sible

de

rech

ange

de

mm

e ty

pe d

e 4

A, 1

25V.

4A/1

25V

NO

TE:

The

volta

ge fo

r par

ts in

hot

circ

uit i

s m

easu

red

usin

gho

t GND

as

a co

mm

on te

rmin

al.

10-1 FL9_0_SC

SCHEMATIC DIAGRAMS / CBA AND TEST POINTSStandard NotesWARNINGMany electrical and mechanical parts in this chassis have special characteristics. These characteristics often pass unnoticed and the protection afforded by them cannot necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts that have these special safety characteristics are identified in this manual and its supplements; electrical components having such features are identified by the mark # in the schematic diagram and the parts list. Before replacing any of these components, read the parts list in this manual carefully. The use of substitute replacement parts that do not have the same safety characteristics as specified in the parts list may create shock, fire, or other hazards.

Notes:1. Do not use the part number shown on these

drawings for ordering. The correct part number is shown in the parts list, and may be slightly different or amended since these drawings were prepared.

2. All resistance values are indicated in ohms (K = 103, M = 106).

3. Resistor wattages are 1/4W or 1/6W unless otherwise specified.

4. All capacitance values are indicated in F (P = 10-6 F).

5. All voltages are DC voltages unless otherwise specified.

6. This schematic diagrams are masterized version that should cover the entire FL9.0 chassis models.Thus some parts in detail illustrated on this schematic diagrams may vary depend on the model within the FL9.0 chassis.Please refer to the parts lists for each models.

7. The Circuit Board layout illustrated on this service manual is the latest version for this chassis at the moment of making this service manual. Depend on the mass production date of each model, the actual layout of each Board may differ slightly from this version.

10-2 FL9_0_SC

LIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ON THE FOLLOWING PAGES:1. CAUTION:

CAUTION: FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE_A,_V FUSE.ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE MME TYPE DE_A,_V.

2. CAUTION: Fixed Voltage (or Auto voltage selectable) power supply circuit is used in this unit. If Main Fuse (F601) is blown, first check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC power supply. Otherwise it may cause some components in the power supply circuit to fail.

3. Note:1. Do not use the part number shown on the drawings for ordering. The correct part number is shown in the

parts list, and may be slightly different or amended since the drawings were prepared.2. To maintain original function and reliability of repaired units, use only original replacement parts which are

listed with their part numbers in the parts list section of the service manual.

4. Voltage indications on the schematics are as shown below: Plug the TV power cord into a standard AC outlet.:

5. How to read converged lines

6. Test Point Information

2 315.0 5.0

Voltage Indicates that the voltage is not consistent here.

Power on mode(Unit: Volt)

3

2

1

A B C D

1-B1

1-D3

AREA D3AREA B1

1-D3 Distinction Area

Line Number (1 to 3 digits)Examples:1. "1-D3" means that line number "1" goes to the line number "1" of the area "D3". 2. "1-B1" means that line number "1" goes to the line number "1" of the area "B1".

: Indicates a test point with a jumper wire across a hole in the PCB.: Used to indicate a test point with a component lead on foil side.: Used to indicate a test point with no test pin.: Used to indicate a test point with a test pin.

10-3 A91N3SCM1

Main 1/4 Schematic Diagram[LC195SLX, LC195EMX, LC195SSX, 19MF339B/F7]

10-4 A91N3SCM2

Main 2/4 Schematic Diagram[LC195SLX, LC195EMX, LC195SSX, 19MF339B/F7]

10-5 A91N3SCM3

Main 3/4 & Junction-B Schematic Diagram[LC195SLX, LC195EMX, LC195SSX, 19MF339B/F7]

10-6 A91N3SCM4

Main 4/4 Schematic Diagram

NOTE:The voltage for parts in hot circuit is measured usinghot GND as a common terminal.

CAUTION !Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.If Main Fuse (F601) is blown , check to see that all components in the power supplycircuit are not defective before you connect the AC plug to the AC power supply.Otherwise it may cause some components in the power supply circuit to fail.

For continued protection against risk of fire, replace only with same type 4 A, 125V fuse.

CAUTION ! :

ATTENTION : Utiliser un fusible de rechange de mme type de 4A, 125V.4A/125V

[LC195SLX, LC195EMX, LC195SSX, 19MF339B/F7]

10-7 A9170SCM1

Main 1/4 Schematic Diagram[22MF339B/F7, LC225SSX]

10-8 A9170SCM2

Main 2/4 Schematic Diagram[22MF339B/F7, LC225SSX]

10-9 A9170SCM3

Main 3/4 & Junction-B Schematic Diagram[22MF339B/F7, LC225SSX]

10-10 A9170SCM4

Main 4/4 Schematic Diagram

NOTE:The voltage for parts in hot circuit is measured usinghot GND as a common terminal.

CAUTION !Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.If Main Fuse (F601) is blown , check to see that all components in the power supplycircuit are not defective before you connect the AC plug to the AC power supply.Otherwise it may cause some components in the power supply circuit to fail.

For continued protection against risk of fire, replace only with same type 4 A, 125V fuse.

CAUTION ! :

ATTENTION : Utiliser un fusible de rechange de mme type de 4A, 125V.4A/125V

[22MF339B/F7, LC225SSX]

10-11 A91N3SCJ

Jack & Junction-C Schematic Diagram

10-12 A91N3SCF

Function & Junction-A Schematic Diagram

10-13 A91N3SCD1

Digital Main 1/5 Schematic Diagram

The order of pins shown in this diagram is different from that of actual IC3301.IC3301 is divided into five and shown as IC3301 (1/5) ~ IC3301 (5/5) in this Digital Main Schematic Diagram Section.

1 NOTE:

[LC195SLX(Serial No.:DS1A**********,DS2A**********,TH3A**********, TH4A**********), LC195EMX(Serial No.:DS1A**********,DS2A**********, TH3A**********, TH4A**********) ,LC195SSX(Serial No.:DS1A**********), LC225SSX,22MF339B/F7, 19MF339B/F7(Serial No.:DS1A**********)]

10-14 A91N3SCD2

Digital Main 2/5 Schematic Diagram

The order of pins shown in this diagram is different from that of

Documents

FL9_0_FUN_SM_AEN_012110