VESTEL 17MB18 User manual

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TFTTVServiceManual
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TABLE OF CONTENTS
1. SOFTWARE UPDATE DESCRIPTION.................................................................................................1
2. INTRODUCTION...................................................................................................................................4
2.1. Scope .................................................................................................................................................4
2.2. General Features ............................................................................................................................... 4
3. SYSTEM BUILDING BLOCKS .............................................................................................................. 5
3.1. Analog Front End ............................................................................................................................... 5
3.1.1. Tuner...........................................................................................................................................5
3.1.2. SAW Filters.................................................................................................................................6
3.2. Back End............................................................................................................................................6
3.3. Side Board(s) .....................................................................................................................................9
3.3.1. Keypads ...................................................................................................................................... 9
3.3.2. IR&Led Board .............................................................................................................................9
3.4. Power ...............................................................................................................................................10
4. IC AND COMPONENT DESCRIPTIONS ............................................................................................12
4.1. Basic IC List .....................................................................................................................................12
4.2. UOCIII ..............................................................................................................................................12
4.2.1. Pinout........................................................................................................................................13
4.3. PW1306 ...........................................................................................................................................17
4.3.1. Pinout........................................................................................................................................17
4.4. M29W800AT ....................................................................................................................................26
4.5. DS90C385........................................................................................................................................26
4.6. P15V330 ..........................................................................................................................................26
4.7. 74HC4052 ........................................................................................................................................26
4.8. TA1366FG........................................................................................................................................27
4.9. TDA7056A........................................................................................................................................27
4.10. TDA1308 ......................................................................................................................................27
4.11. LM1117.........................................................................................................................................28
4.12. 24LC32.........................................................................................................................................28
4.13. 24LC21.........................................................................................................................................28
4.14. 74LVC541.....................................................................................................................................29
4.15. SAA3010T ....................................................................................................................................29
4.16. MC34167 ......................................................................................................................................30
4.17. TFMS5360....................................................................................................................................30
4.18. Board Connectors, Headers & Jumpers.......................................................................................30
4.18.1. Analog PC Connector (PL400)..............................................................................................30
4.18.2. Scart Connector (PL401) ......................................................................................................31
4.18.3. S-Video Connector (JK403) ..................................................................................................31
4.18.4. LVDS Panel Connector(1x20 PL179) ...................................................................................31
4.18.5. TTL Panel Connector -Even (2x17 PL177)...........................................................................32
4.18.6. TTL Panel Connector -Odd (2x17 PL178) ............................................................................32
4.18.7. Panel Inverter Connector (1x11 PL176) ...............................................................................32
4.18.8. Keypad Card Connector (1x5 PL175)...................................................................................33
4.18.9. Optional Keypad Connector to UOC (1x2 PL 202) ...............................................................33
4.18.10. LED & IR Receiver Connector (1x6 PL202)..........................................................................33
4.18.11. Optional Rocker Sw. Connector (1x4 PL500) .......................................................................33
4.18.12. PROMJet Connector (2x25 PL101) ......................................................................................33
4.18.13. Side HP Connector for Side-card Option (PL405) ................................................................33
4.18.14. Side AV Connector for Side-card Option (PL406) ................................................................34
4.18.15. Side SVHS Connector for Side-card Option (PL407) ...........................................................34
5. DIGITAL MODULE IC and CONNECTOR DESCRIPTIONS..............................................................35
5.1. STI5518............................................................................................................................................35
5.1.1. General Description................................................................................................................35
5.2. MAX232_SMD .................................................................................................................................35
5.2.1. General Description................................................................................................................35
5.2.2. Features ...................................................................................................................................35
5.3. 74HCU04 .........................................................................................................................................36
5.3.1. General Description................................................................................................................36

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5.3.2. Pin Description........................................................................................................................36
5.4. TSH22 ..............................................................................................................................................37
5.4.1. General Description................................................................................................................37
5.4.2. Pin Connections......................................................................................................................37
5.5. CS4334 ............................................................................................................................................37
5.5.1. General Description................................................................................................................37
5.5.2. Features ...................................................................................................................................37
5.6. AMIC A43L2616...............................................................................................................................38
5.6.1. General Description................................................................................................................38
5.6.2. Features ...................................................................................................................................38
5.6.3. Pin Description........................................................................................................................38
5.7. MX29LV160T ...................................................................................................................................40
5.7.1. General Description................................................................................................................40
5.7.2. Features ...................................................................................................................................40
5.7.3. Pin Description........................................................................................................................40
5.8. 24C32...............................................................................................................................................41
5.8.1. General Description................................................................................................................41
5.8.2. Features ...................................................................................................................................41
5.8.3. Pin Description........................................................................................................................41
5.9. STV0360 ..........................................................................................................................................42
5.9.1. General Description................................................................................................................42
5.9.2. Features ...................................................................................................................................42
5.9.3. Pin Description........................................................................................................................42
5.10. MAX809........................................................................................................................................45
5.10.1. General Description ............................................................................................................45
5.10.2. Features ...............................................................................................................................45
5.10.3. Pin Description....................................................................................................................45
5.11. TDCC2345TV39A.........................................................................................................................46
5.11.1. General Description ............................................................................................................46
5.11.2. Pin Description....................................................................................................................46
5.12. STV0700.......................................................................................................................................46
5.12.1. General description ............................................................................................................46
5.12.2. Features ...............................................................................................................................47
5.12.3. Pin Description....................................................................................................................47
5.13. 74HC373 ......................................................................................................................................52
5.13.1. General Description ............................................................................................................52
5.13.2. Pin Connections ..................................................................................................................52
5.14. 74HC245 ......................................................................................................................................52
5.14.1. General Description ............................................................................................................52
5.14.2. Features ...............................................................................................................................52
6. SERVICE MENU SETTINGS ..............................................................................................................53
6.1. UOCIII Service Menu .......................................................................................................................53
6.1.1. UOCIII Service Menu Settings ...............................................................................................53
6.1.2. Tuner AGC Alignment...............................................................................................................57
6.1.3. DCXO Alignment.......................................................................................................................57
6.2. PW1306 Service Menu ....................................................................................................................57
6.2.1. UOC Horizontal Position...........................................................................................................58
6.2.2. UOC Calibration........................................................................................................................58
6.2.3. PW1306 PC Input ADC Calibration ..........................................................................................58
6.2.4. Init NVM ....................................................................................................................................59
6.2.5. Initial APS .................................................................................................................................59
6.2.6. Hotel Mode Activate..................................................................................................................59
6.2.7. Burn-In Mode ............................................................................................................................59
6.2.8. Country .....................................................................................................................................59
6.2.9. Language ..................................................................................................................................59
6.2.10. Menu Background .................................................................................................................60
6.2.11. Remote Control .....................................................................................................................60
6.3. Panel Type Change Shortcut...........................................................................................................60
7. PRODUCTION SETTINGS AND FACTORY DEFAULTS...................................................................61
7.1. Production Schedule........................................................................................................................61

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7.2. EEPROM Settings............................................................................................................................61
7.2.1. Creating Master EEPROM........................................................................................................61
7.2.2. Creating Mass Production EEPROM........................................................................................61
7.3. TV Menu...........................................................................................................................................61
7.3.1. Picture Menu.............................................................................................................................61
7.3.2. Audio Menu .............................................................................................................................61
7.3.3. Window Menu ...........................................................................................................................62
7.3.4. Options Menu............................................................................................................................62
7.3.5. Settings Menu...........................................................................................................................62
7.4. PC Mode Menu ................................................................................................................................62
7.4.1. Picture Menu.............................................................................................................................62
7.4.2. Audio Menü...............................................................................................................................63
7.4.3. Window Menu ...........................................................................................................................63
7.4.4. Options Menü............................................................................................................................63
8. BLOCK DIAGRAM...............................................................................................................................65
9. CIRCUIT DIAGRAMS ..........................................................................................................................67
9.1. 17MB18-5 Main Board Schematics .................................................................................................67
9.2. Keypad Schematics .........................................................................................................................72
9.3. IR&LED Board Schematics..............................................................................................................73
9.4. Remote Controller Schematics ........................................................................................................74
9.5. Digital Module Schematics...............................................................................................................75
9.6 Print Lay-outs(Analog Board)...........................................................................................................80
9.7Print Lay-outs(Digital Board)............................................................................................................89
10.SPAREPART LIST.............................................................................................................................94
10.1 Analog Side Spare List......................................................................................................................94
10.2 Digital Side Spare List.....................................................................................................................108
11. Panel&Component Change List......................................................................................................109

1. IC Programming
17MB18 has two programmable ICs, UOCIII (IC203) and 29XX800 (IC102, having the
PW1306 (IC100) codes).
29XX800 (IC102) will be programmed before the TV production and will be mounted as
programmed. On the other hand, software update can be needed after production so the
programming instructions is given also for this IC in related chapter.
1.1. UOC III Programming
Step 1: Entering to ISP Mode
1. Press Power On and turn on the TV.
2. Press Remote Controls (RC) “Menu” (M) and “4””7””2””5” buttons respectively.
3. The following menu will displayed on the screen.
GTV 3.2.1
000 EurAsia TVSub 05.01
00000000 00111100
01000000 01100100
11000101 01100100
00000000 01100100
4. Press RCs “0” ”0” ”2” buttons respectively.(“ISP Mode 0” line will be displayed on the
screen.)
5. Press RCs “Volume +” button and set UOC to ISP mode. .(“ISP Mode 1” line will be
displayed on the screen.)
Step 2: Loading the Code
1-Connect the 5 pin cable of the “programming board” to PL203 of the 17MB18 mainboard.
Connect the programming board to the computer in which “WISP” program is loaded via
“Paralel Port”.
2-Run WISP program. As it is seen in figure1 change “Delay time” value to “5” ms.
3-Under “Settings Menu”, set the I2C configurations as it is seen in figure2; press
“Confirm” and close this window.
(Note: Once the above settings are done, there is no need to do them again each time
loading the UOC code.)
4-Click “Enter ISP Mode” button and then click “Send” button. In the white display area
with “ISP status” heading, “ISP mode... Ready” will be displayed. (Unless you do not see
this warning, check the cable connections and the settings described above.)
1. SOFTWARE UPDATE DESCRIPTION
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Figure1: WISP Main Menu
Figure2: I2C Configuration
5-Click “Erase Flash” button and then click “Send” button. If ereasing is done without any
problem, “three green OK” will be displayed on the main menu window. This indicates
that the memory inside the IC is erased succesfully.
6-Click “Write Flash” button and then click “Browse” button. Select the “gtv.hex” UOC code
file by browsing the explorer to the folder where this “gtv.hex” file is stored. Wait for a
few seconds untill the program reads the code. You will see the blue bar indicating the
“reading operation” on the bottom of the Wisp main menu window.
7-Click “Send” button. You will see the blue bar indicating the “Loading Code to UOC IC”
on the bottom of the window. When the loading operation is over without any error
“three green OK” will be displayed on the window. This indicates the loading operation is
performed succesfully.
Step3: Initializing the TV
8-Turn off and on the TV. Press RCs “Menu” (M) and “4””7””2””5” buttons respectively.
9-Press RCs “0” ”0” ”1” buttons respectively. (“Init TV 0” will be displayed on the screen)
10-Press RCs “Volume +” and set “Init TV 1” and wait the TV to automatically turn off.
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1.2. 29XX800 Programming for PW1306
The following instructions are only needed for software upgrades. For the TV production,
pre-programmed 29XX800 will be mounted on the board.
1-Copy flasher.hex and romcode.hex to “X:\XXX\QTV_TVK2_V_021\Project\PW13XX_QTV”
directory.
2-Connect programmer board 4-pin cable to PL100 on 17MB18.
3-Connect programmer board serial port cable to PC COM Port1.
4-Close jumper PL501.
5-Execute “FlashUpgrader.exe” in “C:\XXX\QTV_TVK2_V_021\bin\” directory.
6-Press “Choose” and select romcode.inf from
“C:\XXX\QTV_TVK2_V_021\Project\PW13XX_QTV” directory.
7-Press “Flash”
8-Power on the board. Observe the sliding bar on the main menu showing that flasher.hex
and then romcode.hex are being downloaded to the IC on 17MB18 main board.
9-Power off the board when the download operation is over.
10-Open jumper PL501.
11-Power On the board. Press Remote Controls (RC) “Menu” (M) and “4””7””2””6” buttons
respectively.
12-By using RIGHT and LEFT buttons of the RC, select “Service Submenu 2”
13-By using DOWN button of the RC highlight Init NVM. Press RIGHT button of the RC and
initialize the PixelWorks side.
14-Turn Off and On the TV.
15-Depanding the size of the Panel(15”, 17”, 20”) the screen may be full white and no
picture is observed.
If screen is full white:
For 15” TV, Press Remote Controls (RC) “Menu” (M) and “4” “7” “2” “6” buttons and then “0”
respectively.
For 17” TV, Press Remote Controls (RC) “Menu” (M) and “4” “7” “2” “6” buttons and then “2”
respectively.
For 20” TV, Press Remote Controls (RC) “Menu” (M) and “4” “7” “2” “6” buttons and then “1”
respectively.
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2. INTRODUCTION
2.1. Scope
Thedocumentcovers23”TFT 17MB18chassisbuildingblocks,basic features,service menu
settings, and the other information needed by service personal.
2.2. General Features
The system is a 14” to 23” TFT LCD TV solution with UOCIII Versatile Signal Processor and PW1306 Video Image
Processor chip-set on 4-layer PCB. The TV will support PAL/SECAM B/G/D/K/I/L/L’.
The other general default features of the TV are as listed below:
1 Full Scart input (with SVHS support)
1 SVHS input through standard S-Video interface.
1 CVBS input through standard RCA jack
75 ohms antenna input
D-Sub 15 PC Input
GERMAN + NICAM STEREO
<3W S/B Power Consumption from mains supply
2x3W Speaker Output Power @16 Ohm spks; HP Output, Stereo Audio line out
Stereo Audio line in
Equalizer
IR Control (RC5)
OSD;MenuLanguagesENG,FRA,GER, ITA, SPA, POR, TUR,SWE,DEN, FIN, CRO,SLO,SLOVEN,NOR,
POL,CZE,HUN,ROM,BUL, RUS(subjecttochangeandbegrouped)
Teletext
2H/4H Comb Filter
White balance settings (warm/normal/cool) for TV&PC
Full AIR&CABLE band coverage
Auto Shut down

3. SYSTEM BUILDING BLOCKS
17MB18 chassis main blocks are as follows:
Analog Front End : UOCIII (Microcontroller + Video Proccessor + Sound Proccessor + IF), CTI, Tuner, SAW
filters, Audio Amp., DAC
Back End : PW1306(Microcontroller, Scaler, OSD, Keyboard/IR Interface)
Side Board(s) : Keyboards, IR/LED Boards, TTL Panel Interface Cards, VCbCr Input Board (Optional)
3.1. Analog Front End
17MB18 Main Board consists of two major blocks. The first block is analog front-end and this block is handled by
UOCIII chip that is highly multifunctional. This IC does demodulation of Video & Audio from Tuner IF, CVBS, Audio,
RGB, SVHS input selection and processing. It has an audio processor that supports equalizer or tone control, volume
control, AVL, surround effect etc and supplies amplifier, headphone and CVBS & audio line outputs. It handles video
processing such as colour standard detection and demodulation, picture alignment (brightness, contrast, colour etc.). The
IC also does teletext decoding with 10 pages text memory. After video processing, the processed video is applied to
PW1306 chip in RGB format.
The TV Tuner is an asymmetrical IF output type and is PLL controlled. For multistandard reception, a switchable SAW
filter is used as the sound filter and it is controlled by SAW_SW output from UOC. After the SAW filter block, IF signal
is applied to UOC IF inputs (VIFIN[1,2] and SIF[1,2]).
As UOCIII can handle all the audio processing, there is no need for additional audio processor solution on the board.
UOC supports three Audio outputs. These outputs are assigned to Headphone, Speaker and Scart Audio line outputs. The
board employs TDA7056A and TDA1308 to drive speaker and headphone outputs respectively. As another dedicated
output for Audio Line out from jack is not possible in UOC, this line out signal is obtained by using I2S input DAC
CS4335. UOCIII I2S output is converted to anolog signal by DAC CS4335.
3.1.1.Tuner
As the thickness of the TV set has a limit, a horizontal mounted tuner with longer connector is used in the
product. The tuning is available through the digitally controlled I2C bus (PLL). Below you will find info on the
Asymmetrical Tuner in use.
General description:
The tuner meets a wide range of applications. It is a combined VHF, UHF tuner suitable for CCIR systems
B/G, H, L, L’, I and I’. The low IF output impedance drives a wide variety of SAW filters with sufficient
suppression of triple transient.
Features:
Small sized UHF/VHF tuners
Systems CCIR: B/G, H, L, L’, I and I’; OIRT: D/K
Digitally controlled (PLL) tuning via I2C-bus
Off-air channels, S-cable channels and Hyper band
ZS(AE) Aerial source impedance (unbalanced) 75 Ohm
PIN SYMBOL DESCRIPTION
1AGC Automatic Gain Control Voltage 4 0.1
2TU Tuning voltage monitor (output)
3AS I2C-Bus Address Select
4SCL I2C-Bus Serial Clock
5SDA I2C-Bus Serial Data
6n.c. Not Connected
7VsSupply Voltage +5V 0.125
8ADC ADC Input
9VST Fixed tuning Supply Voltage +33V 0.5

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10 I.F out 2 Symmetrical I.F output 2 / Do not connect for asymmetrical
11 I.F out 1 Asymmetrical I.F Output / Symmetrical I.F output 1
M1,M2,M3,
M4 GND Mounting Tags (Ground)
3.1.2. SAW Filters
K3953M is an IF Filter for Video Applications. The package is SIP5K. Supported standards are B/G, D/K, I,
L/L’.
K9656M is an IF Filter for Audio Applications. The package is SIP5K. Supported standards are B/G, D/K, I,
L/L’.
3.2. Back End
The Back End section is handled by PW1306 chip. This IC has built in ADC’s for RGB and SOY support. The RGB input
can handle standard interlaced RGB output from UOC, PC VGA RGB input. As only 1 set of ADC is present in PW1306
these sources should be multiplexed.
All the multiplexing operations are controlled by PW1306 via YUV_TV_SW (58) and VGA_TV_SW (57) signals.
A: VGA _TV_SW
B: YUV _TV_SW
A B SYNC SOURCE
0 0 UOC
0 1 VGA
1 0 YcbCr
1 1 NOT USED
Table 2: H/V Sync Multiplexing Table
The video output from PW1306 is a 48-bit digital RGB bus format and made available on two separate connectors with
TTL control signals (i.e. HS, VS, CLK, etc.). This digital output is intended to interface to TTL compatible display
devices. As PW1306 does not have integrated LVDS transmitter, 24 bit (even part of RGB) video output and TTL control
signals from PW1306 are also inputted to DS90C385 LVDS IC to produce single pixel LVDS output for LVDS
compatible LCDs.
Backlight control is also possible via PW1306 Porta7 pin (PWMOUT, PL176-10), that is a variable duty-cycle pulse
generator output.