17MB36 Training Manual

5/20/2018 17MB36 Training Manual

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VESTEL

TRAINING OF THE

2009


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CONTENTS

(click on contents to display)

General Introduction of MB36 project

Main Features Connectors and IC layout

Explanation of the IC and pinning table

Block Diagrams Schematics

Power Board

Measurement points probably reasons Explanation of the Service Menu

Software update


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17MB36 MAINBOARD (TOP VIEW)


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17MB36 MAINBOARD (BOTTOM VIEW)


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17MB36 Main Board consists of MSTAR concept. Main IC MSTAR is capable of handling Video processing, Audio

processing, Scaling-Display processing, 3D comb filter, OSD andtext processing, 8 bit dual LVDS transmitter.

Supports DVB-T, DVB-C, Pal, Secam and NTSC.

General Introduction

, , ,

Supports German A2 and NICAM Stereo Support


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MAIN FEATURES

DVB-T & Analog TV & OPT. DVB-C

Multi-language menu (Eng, Ger, Fre, Spa, Ita, Turk,...) PIP, PAP, PAT 200 Programs storage OSD For Analog And Digital TV Teletext level 1,5&2,5, 1000 pages

Fastext Toptext IR Control Child Lock (Front Panel Buttons) Sleep Timer

1 CAN tuner Parental lock(lock support for each program) No Ident Timer(5 Minutes)


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MAIN FEATURES

DVB-T & Analog TV & OPT. DVB-C

1 USB(USB 2.0 FS/2.0 HS/2.0)(MP3-Jpeg) Scart1 & 2 Output can be analog or digital tuner output

Mpeg2 MP@Main support(Main Profile Main Level)

AC3 Pass-Thru via SPDIF Output (Optic and Coax)

German A2 and NICAM Stereo Support Dynamic Backlight

Simple Hotel Mode Support

Automatic Scart and HDMI support

Country Specific Service Naming & Sorting (APS) Active antenna support

Audio Output Power (Default 2X8W, *2X15W Optional)

Less than 1W Stand-By Power Consumption.(*0,1W optional)


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MB36

SO

CKETs

LL

ND

ICs


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MB3

Backsidep

6

owerICs


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INTRODUCTION PART OF THE MB36 MAIN BOARD


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TUNER (TDTC-G101D)

A horizontal mounted and Digital Half-Nim tuner is used in the product, which covers 3 Bands(From 48MHzto 862MHz for COFDM, from 45.25MHz to 863.25MHz for CCIR CH). The tuning is available through the

digitally controlled I2C bus (PLL). Below you will find info on the Tuner in use.

DESCRIPTION

The Tuner covers 3 Bands(from 48MHz to 862MHz for COFDM, from 45.25MHz to 863.25MHz for CCIRCH). Band selection and Tuning are performed digitally via the I2C bus.

Features of TDTC-G101D:

Digital Half-NIM tuner forCOFDM

Covers 3 Bands(From 48MHz to 862MHzfor COFDM,From 45.25MHz to 863.25MHz for CCIR

CH)Including IF AGC with SAW Filter

Bandwidth Switching (7/8 MHz) possibleDC/DC Converter built in for Tuning VoltageInternal(or External) RF AGC, AntennaPower Optional


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TUNER PIN DEFINITION


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AUDIO (MP7722)Top Vew

ON MB36 CHASSIS


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MP7722 PIN DEFINITION


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POWER SUPPLY 17PW26-x CN27 Power SupplyConnector

The DC voltages required at various parts of the chassis and this voltageprovided by a main power supply.The main power supply unit is designed for24V,12V,5V and 3,3V.


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IF Demodulation

Following block diagram is used for tuning and IF decoding section.

IF Demodulatione ey ea ures o e ar processor are s e e ow.

Multi-standard analog TV receiver applications. Digital low IF architecture. Stepped-gain PGA with 26 dB tuning range and 1 dB tuning resolution. Programmable TOP to accommodate different tuner gain to optimize noise andlinearity performance. 0.13m standard CMOS process. The VIF processor is designed to comply withmulti-standard analog TV receiver applications, for PAL, NTSC and SECAM standards.The VIF processor down-converts the IF signal from an RF tuner to a low IFfrequency before being sampled into digital domain for digital signal processing. Along the signal path, the VIF processor consists of a frequency down-conversion

mixer, a low-pass anti-aliasing filter, and followed by an ADC. The mixer LO (Local Oscillator) is generated by an on-chip frequency synthesizerand programmable dividers. The analog signal path is further duplicated to provide the option of running separateaudio and video signal paths using off-chip SAW filters (dual-path).

SAW FilterTo separate audio and video info, two SAW filters must beused: Epcos K9656M and K3958M. Nevertheless, theentire multistandard processing is performed. The prefilterlimits the signal bandwidth and suppresses major parts of

the adjacent channels.

Analog IF & I2C and AGC connection


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DVB-T Demodulator(STV0362)DESCRIPTION


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DVB-C Demodulator(STV0297)DESCRIPTION

BLOCK DIAGRAM

PIN DEFINITION

ON MB36 CHASSIS


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EEPROM


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HEADPHONE IC (TDA1308-U128)

DESCRIPTION FEATURES

BLOCK DIAGRAM


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POWER IC INFORMATIONYou can find some information about usable power IC from MB36 chassis


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LM1117 Low Dropout Linear Regulator

DESCRIPTION

U35 3V3 VCC_PS-SI_MAINU36 2V5 VCCU37 3V3 HDMIU38 1V8 VCC HDMI


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MP2112 Synchronous Step-Down Converter

DESCRIPTION FEATURES

PINNING


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MPEG-2/MPEG-4 DVB Decoder (STi7101)DESCRIPTION FEATURES

The STx7101 demultiplexes, decrypts and decodes HD or SDvideo streams with associated multi-channel audio. Video isoutput to two independently formatted displays: a fullresolution display intended for a TV monitor, and adownsampled display intended for a VCR or DVD-R.

Connection to a TV or display panel can be analog through theDACs, or digital through a copy protected DVI/HDMI.Composite outputs are provided for connection to the VCRwith Macrovision protection. Audio is output with optional PCMmixing to an S/PDIF interface, PCM interface, or through

integrated stereo audio DACs. Digitized analog programs canalso be input to the STx7101 for reformatting and display. TheSTx7101 includes a graphics rendering and display capabilitywith a 2D graphics accelerator, three graphics planes and acursor plane. A dual display compositor provides mixing ofgraphics and video with independent composition for each ofthe TV and VCR/DVD-R outputs. The STx7101 includes astream merger to allow seven different transport streams fromdifferent sources to be merged and processed concurrently.

The STx7101 is a single-chip, high definition video decoderincluding:H.264 supportLinux and OS21 compatible ST40 CPU core: 266 MHztransport filtering and descramblingvideo decoder: H.264 (MPEG-4 part 10) and MPEG-2SVP compliantgraphics engine and dual display: standard and high definitionaudio decoder

DVD data retrieval and decryptionThe STx7101 also features the following embedded interfaces:USB 2.0 host controller/PHY interfaceDVI/HDMI outputdigital audio and video auxiliary inputslow-cost modem100BT ethernet controller with integrated MAC and MII/ RMII interfacefor external PHY

APPLICATIONS OVERVIEW

-program, while acquiring an EPG/data stream from a satellite

or cable front end.

BLOCK DIAGRAM


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SIL9185 HDMI SWITCH

DESCRIPTION FEATURES PIN MAPPING

ON MB36 CHASSIS

MB36 board supports 4 HDMI inputsoverall. Actually, main IC supports twoHDMI inputs. By using one of thesesupported inputs, a default HDMIconnector is provided on MB36 board.

Other optional three HDMI connectors

are provided via the HDMI switch, whichconnects to the second HDMI input onthe main IC.

HOW IT WORKS ON MB36


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IF FILTER FOR AUDIO APPLICATIONS-EPCOS K9656M

DESCRIPTION

Standart: B/G D/K I L/L Features: TV IF audio filter with two channels Channel 1 (L) with one pass band for sound carriers at 40,40 MHz (L)

and 39,75 MHz (L- NICAM)

Channel 2 (B/G,D/K,L,I) with one pass band for sound carriers between32,35 MHz and 33,40 MHz

1 Input 2 Switching input 3 Chip carrier - ground 4 Output 5 Output

PIN CONFIGURATION

IF FILTER FOR VIDEO APPLICATIONS EPCOS K3958M


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IF FILTER FOR VIDEO APPLICATIONS-EPCOS K3958M

DESCRIPTION

Standart: B/G D/K I L/L Features: TV IF filter with Nyquist slopes at 33.90 MHz and 38.90 MHz Constant group delay

1 Input 2 Input - ground 3 Chip - carrier ground 4 Output 5 Output

PIN CONFIGURATION


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MP7722 AUDIO AMPLIFIER

DESCRIPTION

FEATURES

TYPICAL APPLICATION

APPLICATIONS


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TDA8932 AUDIO AMPLIFIER PINNING

ON MB36 CHASSIS

MB36 BLOCK DIAGRAM


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MB36 BLOCK DIAGRAM

MST6WB7GQ BLOCK DIAGRAM


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MST6WB7GQ BLOCK DIAGRAM


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CN117 CONNECTORS


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TUNER VOLTAGE

R V l 3V3


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Reset Voltage 3V3

Please check this point if ,-Tv does not work-Does not turn on from stand_by.


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VGA 5V & VCC 5V

Please check these points if ,- There is no picture via VGA input.

STI7101 IC SUPPLYED SUPPLY PINS


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Please check VCT IC supply voltages if,-Tv does not work-Does not turn on from stand_by.


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MST6WB7GQ 14.318 MHz Criystal Frequency

Please check MST6WB7GQ 14.318 MHz criystal frequency if,-Tv does not work-Does not turn on from stand_by.

ON MB36 CHASSIS

SIL9185 HDMI SWITCH IC SUPPLY VOLTAGE


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SIL9185 HDMI SWITCH IC SUPPLY VOLTAGE

Please check HDMI SWITCH IC supply voltages if,

-HDMI input does not work properly(no sound or no picture)

ON MB36 CHASSIS

PANEL VCC VOLTAGE


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PANEL VCC VOLTAGE

Check the Panel Vcc VoltageIf ; No Picture (sound or Backlight OK)

ON MB36 CHASSIS

POWER BOARD PW26


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POWER BOARD PW26

MB36 main board is using the 17PW26 power board for voltage

supplier. If a problem occurs in 17PW26, please check the generalrules one by one for the repearing the power board.

GENERAL RULES

1) Please check all connectors on the board carefully, if you need, please

remove and connect again to connectors.

2) If there is no problem with connectors, you should check short circuiton the layout.Measure between,

, , , , , , ,

3) If there is no short curcuit, please check FUSE. If fuse is broken,you should check Q803,Q813,Q814 ,D800 and components around these.You can measure 390V + side of the bulk cap.

4) If rectifier output voltage is lower then 390 Vdc, PFC block does notwork properly. In this condition, check all components around this block;especially IC 802.

5) If 24V and 12V is available and there is no 5V on seconder, pleasecheck IC800, IC803 and components around these.

6) If STBY 3V3 is available but there is no VCC 3V3, please check IC824and component around these.


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TOP VIEW


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BOTTOM VIEW

WHAT CAN BE CHANGED IN SERVICE


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WHAT CAN BE CHANGED IN SERVICESETTINGS MENU OF THE TV.

In order to reach service menu, First Press MENU Then pressthe remote control code, which is 4725. In DTV mode, firstpress MENU and select TV SETUP. Then, press 4725.


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VIDEO SETUP SETTINGS

Blue BackgroundIf Menu selected, Blue Backgrounditem is seen in Featuremenu.If Yes selected, Blue Backgroundis on and not seen inFeaturemenuFilm Mode

If Yes selected, Film Mode feature is active.Zoom Mode Blank

If Yes selected, Zoom Mode Blank feature is activeDynamic ContrastIf Yes selected, Dynamic Contrast feature is active.

If Yes selected, Game Mode feature is active

SRGB For PCIf Yes selected, PCs can use SRGB option.Dynamic Noise ReductionIf Yes selected, Dynamic Noise Reduction feature is activeWSS OptionIf Yes selected, WSS Option can be usedVideo Wall(for multiple screen use)RGB Only(eligible as yes or no)PAL I Settings Enabled(eligible as yes or no) PAL I CTI Constants(must be set proper value) PAL Y Delay Adaptive Backlight Trick Mode(eligible as yes or no)

AUDIO SETUP SETTINGS


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Clipping Levels ( AVL On) sub menu FM Clipping , AM Clipping, NICAM Clipping ,SCART

BG Europe,New Zelland,Australia,No DK

I L Equalizer If Yes selected, Equalizer item is seen in Sound

menu. Headphone If Yes selected, Headphone item is seen in Sound

menu. Power On/Off Melody

If Yes selected, when power on/off conditions, the poweron/off melody can be heard.

Dynamic BassValue between 0 to 12 Effect Value between 0 to 7

Audio Delay ,offset Value between 0 to 190 Audio Setup Cont...2 sub menu

pp ng , pp ng , pp ng , pp ngYPbPr/PC Clipping ,An. USB Clipping ,Dig. USB Clipping

Clipping Levels ( AVL Off) sub menu FM Clipping ,AM Clipping , NICAM Clipping ,SCART Clipping ,FAV Clipping ,DTV Clipping ,HDMI Clipping , YPbPr/PC Clipping ,An. USB Clipping ,Dig. USB Clipping ,Headphone Volume Prescales sub menu FM Clipping ,AM Clipping , NICAM Clipping ,SCART Clipping ,FAV Clipping ,DTV Clipping ,

HDMI Clipping , YPbPr/PC Clipping ,An. USB Clipping,Dig. USB Clipping ,SPDIF Volume Prescales sub menu FM Clipping ,AM Clipping , NICAM Clipping ,SCART Clipping ,FAV Clipping ,DTV Clipping ,HDMI Clipping , YPbPr/PC Clipping ,An. USB Clipping ,Dig. USB Clipping ,

Carrier mute Value between 0 to 28 Headphone Sound Select

Always Active Select, Always Inactive Select, Menu,Always Main Menu Oor Always PIP/PAP Window

Sound Mode Detect Time, Noise Reduction Threshold , Noise Reduction Time Value between 0 to 15 AVL Attack Time, AVL Release Time, Prescales ( AVL On) sub menu

FM Prescale, AM Prescale ,NICAM Prescale, SCARTPrescale FAV Prescale DTV Prescale , HDMI Prescale,YPbPr/PC Prescale , An. USB Prescale ,Dig. USBPrescale ,

Prescales ( AVL Off)sub menu FM Prescale, AM Prescale , NICAM Prescale , SCARTPrescale , FAV Prescale , DTV Prescale ,HDMI PrescaleYPbPr/PC Prescale , An. USB Prescale ,Dig. USB Prescale ,

SERVICE SCAN/TUNING SETUP


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First Search for L/LATS Delay Time (ms)-Value between 0 to +200Main Tuner Setupsub menu

Tuner TypeLC_TDTC_GXX1DThomson DTT7543X

Philips TD1318AF-3Samsung DTOs403LH172AGeneric ( Analog Only) Control Byte Value between 0 to +255

BSW1 Value between 0 to +255 BSW2 Value between 0 to +255

BSW3 Value between 0 to +255 Low-Mid Low Byte Low-Mid High Byte

Mid-High Low Byte Mid-High High Byte S Band TOP

VIF TOPValue between 0 to +15VIF TOP SECAMValue between 0 to +15VIF TOP DKValue between 0 to +15

Synch ThresholdValue between 0 to +40


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All source can beenabled or disabled

on this section.

TV DTV Ext 2

Ext 2 S FAV BAV

S-Video HDMI 1 HDMI 2

HDMI 3 HDMI 4 YPbPr

PC

User Ad.j

ADC Adj. Service Adj. All Adj. Init Factory Channels.

OTHER SETTINGS


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NVM Edit Programming

OTHER SETTINGS

Diagnostic Product Info

SOFTWARE UPDATE PROCEDURE17MB36 Analog Part Software Update With

B tl d P d


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SOFTWARE UPDATE PROCEDUREBootloader Procedure

The File Types Used By The Bootloader

All file types that used by the bootloader software are listed below: 1. The Binary File : It has .bin extension and it is the tv

application. Its size is 1920 Kb.

2. The Config Binary File : It has .cin extension and it is theconfig of the tv application. Its size may be 64 Kb or a few times64 Kb.

3. The Test Script File : It has .txt extension and it is the testscript that is parsed and executed by the bootloader. It dont haveto be any times of 64 Kb.

4. The Test Binary File : It has .tin extension and it is used andwritten by the test groups. It is run to understand the problem partof the hardware.

Alltough a file that is used by the bootloader can be had any oneof these extensions, its name has to be VESTEL_S and it has toe oca e n e roo rec ory o e us ev ce.

1.2 Usage of The Bootloader 1. The starting to pass through : The chassis is only powered up. 2. The starting to download something : When chassis is powered

up the menu key has to be pushed.Before the chassis is poweredup and if any usb device is plugged to the usb port, theprogramme is downloaded from usb firstly.

Any usb device is plugged to usb port , user must openhyperterminal in the pc and connect pc to chassis via Mstar debugtool and any one of scart,dsub9 or I2c connectors. Serialconnection settings are listed below:

Bit per second: 115200 Data bits: 8 Parity: None Stop bits: 1 Flow control: None In this case the bootloader sofware puts C character to uart.

After repeating C characters are seen in the hyperterminal usercan send any file to chassis by selecting Transfer -> Send Filemenu item and choosing 1K Xmodem from protocol section.

Figure:1-The Sample Output Before Sending The File

EEProm update


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To Update eeprom content via uart scart,dsub9 or i2c with Mstar tool can

used. Serial connection settings are listed below: Bit per second: 9600 Data bits: 8 Parity: None

Stop bits: 1 Flow control: None Programming menu item is choosed in the service menu and switch HDCP

Key Update Mode from off to on.

Figure:2-The Programming Service Menu

If the repeated C characters are seen you canAfter then you must see Xmodem menu in


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transfer file content via select Transfer->SendFile and choose Xmodem protocol and click

the Send button.

ythe hyperterminal.To download hdcp keypress k or to download eeprom content

press w.

Figure:3-Xmodem Menu Figure:4-The Starting To Send

17MB36 HDCP key upload procedure. Turn on TV set. Open a COM connection using fallowing parameters


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p g g pand select ISP COM Port No

Baud Rate: 9600 bps Data Bits: 8

Stop Bits: 1 Parity: None Flow Control: None Enter service menu by pressing 4 7 2 5

consecutively while main menu is open Select 9. Programming Select HDMI HDCP Update Mode yes. On Hyper Terminal Window press k Click on send file under Transfer Tab.

Select Xmodem and choose the HDCP key to beuploaded.

Press send button Restart TV set

17MB36 Digital Software Update FromSCART

Adjusting DTV Download Mode: 1. Power on the TV.

2. Exit the Stby Mode. 3. Enter the Tv Menu. 4. Enter 4725 for jumping to Service Settings. 5. Select 8. Programming step. 6. Change 6. DTV Download to On. 7. Switch to the Stby mode. Adjusting HyperTerminal: 1. Connect the MB36 SCART Interface to SCART1

(bottom SCART plug).

2. Also connect the MB36 SCART Interface to PC. 3. Open HyperTerminal. 4. Determine the COM settings listed and showed

below. Bit per second: 115200 Data bits: 8 Parity: None Stop bits: 1 Flow control: None

5. Click OK. COM Properties Window

Software Updating Procedure4. Press the 2 button on the keyboard for choosing


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1. In the HyperTerminal Menu, click the

Connect button.2. Exit the Stby Mode.3. The Space button on the keyboard must bepressed, when the following window can beseen.

y g2. Upgrade Application with Xmodem.5. Repeating C characters are seen in the

HyperTerminal menu.6. Click the Send button on the HyperTerminal7. Select the Filename xxxx_slot1.img usingBrowse.8. Choose the 1K Xmodem from Protocol option.

Selection Window The Sample Output Before Sending The File

Note: In the Software updatingProcedure section, when the first C


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,character is seen, the filename selectionprocess must be finished before 10seconds. If the process can not befinished, the file sending operation willbe cancelled. The following figure showsthis situation.

Selection of File

File and Protocol Selection Window

Capture of Receving Data Failing

10. After the sending process the followingHyperTerminal window must be seen.

Note: After the File Sending Process,Upgrade Application with FUMUpgrade Application with Xmodem options


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Upgrade Application with Xmodem, optionsmust be seen.

Capture of End of The Sending Process

11. For sending second program file, theSoftware Updating Procedure must berepeated from the step X. Select theFilename xxxx_slot2.img using Browse.12. After sending the second program file, theSoftware Updating Procedure will besuccesful.

End of The Sending Process

Checking Of The New Software1. Turn off and on the TV.2. Enter the Setup submenu in the DTVMenu.3. Choose the Configuration option.4. For controlling new software, check the

Receiver Upgrade option.

17MB36 Digital Software Update From USBS ft d i ibl i USB di k b f l i th t b l


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Software upgrade is possible via USB disk by folowing the steps below.

1-Copy the bin file, including higher version than the software loaded in flash, intothe USB flash memory root directory. This file should be named up.bin.

2-Insert the USB disk.3-Digital module performs version and CRC check. If version and CRC check is

successful, then a message prompt appears to notify user about new version. If the userconfirms loading of new version, upgrade.bin file is written into flash unused slot.

4-Digital module disables the previous software in the flash and then a systemreset is performed.

5-After the reset, digital module starts with new software.

Revert operation:

, .Revert operation is very similar to upgrade process. In the revert operation, file

name should be f_up.bin. Also user confirmation is not asked.

1-Copy the bin file into the USB flash memory root directory. This file should benamed force_upgrade.bin.

2-Insert the USB disk.3-A lower version than the software in flash can be loaded with revert operation.

Digital module performs only CRC check. If CRC check is successful, then force_upgrade.bin

file is written into flash unused slot.4-Digital module disables the previous software in the flash.5-A message prompt is displayed to notify user about end of revert process.6-Power off/on is required to start digital module with the new software.For controlling new software, check the Receiver Upgrade option.


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SCHEMATIC Click here to reach MB36 detailed schema

Documents

17MB36 Training Manual