Acer AT4202P User manual

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Trident EX52 compatibly model:
AT4202P
ACER SERVICE MANUAL

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THIS DOCUMENT IS FOR REPAIRSERVICE INFORMATION ONLY.
DATE：2006/02/13

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CONTENTS
1、SPECIFICATION..................................... ................ .................................... ..........…………...…..
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1-1 General Sepecificaation..........................…….. ….......……....................... .....………....……. 5
1-2 Feature Summary....................................... .. ........ .............................……………...………….. 6
1-3 External Interface........................................... .. .........................................…………….....…… 7
1-3-1 Video/Audio Inputs……........................... .. ................. .. .. ...................... .............….. 8
1-3-1-1 TV Antenna Interface............. .. ................. .......... .. ................ .. .. ..............……… 8
1-3-1-2 Component Intputs........................................ ....... ....... . ...... ..................…………… 8
1-3-1-3 PC Input……………………………………………………………………………………… 8
1-3-1-4 DVI input……………………………………………………………………………………… 10
1-3-1-5 SCART Input……………………………………………………………………………… 11
1-3-2 Audio/Video Outputs………………………………………………………………………….. 12
1-3-2-1 Composite Video Output ……………………………………………………………….. 12
1-3-2-2 Analog Audio Output……………………………………………………………………… 12
1-3-2-3 Head Phone………………………………………………………………………………… 12
1-3-3Power Interface………………………………………………………………………………….. 12
1-3-3-1 Power Connector………………………………………………………………………….. 12
1-3-3-2 Power Input Range………………………………………………………………………… 13
1-3-3-3 Power Consumption……………………………………………………………………… 13
1-3-4 Service Interface……………………………………………………………………………….. 13
1-4 User interface………………………………………………………………………………………….. 14
1-4-1 Power Indicator……………………………………………………………………………….. 14
1-4-2 Remote Control Receiver…………………………………………………………………….. 14
1-5 External Mounting Requirements………………………………………………………………….. 14
1-6 Environmental Requirements ………………………………………………………………………. 14
1-6-1 Temperature Ranges………………………………………………………………………….. 14
1-6-2 Humidity…………………………………………………………………………………………. 14
1-6-3 Altitude………………………………………………………………………………………….. 14
1-6-4 Vibration and Shock………………………………………………………………………….. 14
2、Precautions and Notices......................... ..............................................................……………...… 14
2-1 Precaution of assembly……………..…... ............... ...... . ........... ............................................. 14
2-2 Precaution of Operation…………..…... ....... ................. ............ ..............................…………. 14
3、Operation.............................................. .... .....……………...............……………...…………………. 16
3-1 Operation of Remote Control Transmitter…….... ..... .......................................………………. 16
3-2 Key function..................................................... ............. ..............................…………..…….. 17
3-3 OSD Main Explanation................................................................................................…….. 17
3-3-1 Main Menu ..................................................................................................................... 17
3-3-2 Search Menu………………………………………………................. ....................... 18
3-3-3 Video Menu.............................. ................................... . ............................................... 20
3-3-4 Audio Menu................................. ................................... . .............................................. 20
3-3-5 Time Menu................................. ................................... . .............................................. 21
3-3-6 Setting Menu................................ ................................... ............................................. 21
3-3-7 Screen Menu………………………………………………………………………………….. 22
3-3-8 Pip Menu………………………………………………………………………………………. 23
3-8-1-1 PIP Input Mode……………………………………………………………………….. 24
3-8-1-2 PIP Function Table List……………………………………………………………….. 24

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4、Trouble shooting chart.......................................... .................................. ....................…………..... 24
4-1 PANEL Trouble shooting…….………...................................... .....................................……… 24
4-2 Solution process of MGPC0……………………................ ...... ....... ........... ...... ................ ...... 25
4-2-1 Panel cannot be lit up………………............................... ....................................………. 25
4-2-1-1 Check peripheral circuits procedure....................... ....................................………. 25
4-2-1-2 Check Image board procedure…............................. ....................................……… 26
4-2-2 Picture Display --Dynamic picture abnormal………………………………………………. 27
4-2-3 DVI picture abnormal…………...................................... ........................... .......……….. 28
4-2-4 Component picture abnormal…...................................... .............. .......................……. 29
4-2-5 RGB Picture Abnormal……………………….............................. ................... .......... ….. 30
4-2-6 Video Picture Abnormal………………………………………………………………………. 31
4-2-7 DC Power Supply…………………………………………………………………………….. 32
4-3 TUNER＆AUDIO BOARD FAULTS HANDLING…………………………………………………… 33
4-3-1 Check DC Power Supply…………………………………………………………………………… 33
4-3-2 Tuner Faults Handling…….………………………………………………………………………. 33
4-3-3 Tuner＆Audio Board Faults Handling……..……………………………………………………… 34
5、White-Balance Adjustment………………………………………………………………………………… 35
5-1 Equipments list………..…………………………………. ………………………………………….. 35
5-2 Preparation and Adjustment process………. ……………………………………………………. 35
6、DDC program and test……………………………………...……………………………………….………. 37
6-1 Equipments list and prepare……………………...………………………………………………… 37
6-2 Program and test process………...………..………………………………………………………… 37
7、Flash Update………………………………………...……………………………………………………… 38
7-1 The list of Instrument………………………………………………………………………………….. 38
7-2 The operation explaining Flash Update…………………………………………………………….. 38
8、Software Administer Block diagram……………………………………………………………………… 41
8-1 Main Block diagram （Kernel part）………………………………………………………………… 41
8-2 SOURCE key Block diagram…………………………………………………………………………... 42
8-3 MENU key Block diagram…………………………………………………………………………….. 43
8-4 Mode Check Block diagram…………………………………………………………………………. 45
8-5 SCART Key Choose Process………………………………………………………………………… 45
9、Block diagram & Explain.......................………………………..............……………………………. 49
9-1 PDP block diagram and functions…………………….. ………….. ……………………………… 49
9-2 Image board block diagram and signal introduce……………………………………..…………… 50
9-2-1 Image board block diagram………………………………………………………………………… 50
9-2-2 Input signal introduce………………………………………………………………………………… 51
9-3 TUNER board block diagram…………………………………………………………………………. 51
10、Waveform of signal………………………………..….. ………..…….. …. ……………………..………. 52
10-1 Waveform of input signal……………..….. ………..…….. …. ……………………..……………. 52
10-2 Signal waveform in the image board. ………..…….. …. ……………………..………………… 55
11、11Check and Measure…………..….. …………..…….. …. ……………………..…………………….. 64
11-1 Image board………………..….. ……….. …. ……………..…….. …. ……………………..……. 64
11-1-1 Power Check and Measure….……..….. ………..…….. …. ……………………..……… 65

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11-1-2 Voltage value of IC necessary…………………………………………………………… 66
11-2 AUDIO and TUNER Board CHECK……………………………………………………………….. 66
12、Mechanical Introduction………………………………………………………………………………… 67
12-1 PDP Internal view……………………………………………………………………………………. 67
12-2 Mechanical of cabinet front disassembly…………………………………………………………. 68
12-3 Disassembly and assembly……………………………………………………………………….. 69
12-3-1 PDP stand removal………………………………………………………………………… 69
12-3-2 Back Cover Removal………………………………………………………………………. 70
12-3-3 Rear Low Cover removal…………………………………………………………………… 71
12-3-4 Main Board(MGPC) and TUNER AUDIO Board (TUPC)removal……………………… 72
12-3-5 PCB Plate Removal……………………………………………………………………….. 73
12-3-6 Key Board Remove……………………………………………………………………….. 74
12-3-7 Side AV Board Removal……………………………………………………………………. 75
12-3-8 Panel Module Removal…………………………………………………………………….. 76
12-4 Panel Wiring diagram……………………………………………………………………………… 77
13、PCB LAYOUT ……………………………………………………………………………………………… 79
13-1 Image broad PCB LAYOUT……………………………………………………………………… 79
13-2 TUNER board and AUDIO board PCB LAYOUT……………………………………………….. 80
14、Schematic diagram…………………………………………………………………………………………. 83

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1、SPECIFICATION
1-1-1 General Specificaation
Item Specification
Screen size 42 inch plasma display panel
Aspect 16:9
Display pixels 852 x 480 (WXGA)
Effective display size 933mm x 533mm
Number of color 16.7 million colors
Contrast Ration 10000:1 (in dark room)
Panel
Spec
Peak brightness 1500 cd/㎡
TV Tuning 1 Tuners, 100 channel save
Sound system D/K I B/G L/L’
TV Mode
Color system PAL /SECAM
Video RCA x 1 PAL, NTSC, SECAM
S-Video S-Video1 x 1 PAL, NTSC, SECAM
Audio: L/R x 1
SCART Europe 21Pin SCART x 3 PAL, NTSC, SECAM Audio: L/R x 3
480i (60Hz)
Y Cb Cr 576i (50Hz)
480P (60Hz)
720P (60Hz)
576P (50Hz)
Video Mode
Component 1,2
(Y Pb Pr/ Y Cb Cr) Y,Pb,Pr
(HDTV)
1080i(50/60HZ)
Audio: L/R x2
Signal input Analog：D-Sub 15 pin
Plug and play DDC / 2B
Support Frequency FH:31KHz to 69KHz ， FV:56Hz to 75Hz
RGB Mode(D-Sub Mode)
VESA: 640 x 480 (60Hz/72Hz/75Hz)
VESA: 800 x 600 (56Hz/60Hz/72Hz/75Hz)
VESA: 1024 x 768 (60Hz/72Hz/75Hz)
VESA: 1280 x 1024 (60Hz)
PC Mode
RGB Mode (D-Sub Audio) Earphone (3.5ø)
Signal input Digital：DVI-D 24 pin
Plug and play DDC / 2B
Support Frequency FH:31KHz to 69KHz ， FV:56Hz to 75Hz
VESA: 640 x 480 (60Hz/72Hz/75Hz)
VESA: 800 x 600 (56Hz/60Hz/72Hz/75Hz)
VESA: 1024 x 768 (60Hz/72Hz/75Hz)
VESA: 1280 x 1024 (60Hz)
DVIMode
480i,576i,480P, 576P, 720P, 1080i(50/60Hz).
DVI Mode
DVI Audio Earphone (3.5ø)
Video Out SCART Europe 21Pin PAL, NTSC, SECAM
Speaker Amplifier External:10W × 2
Audio Out Audio Output Earphone (3.5ø)
Power input sources 100--240V~ ,50/60Hz
Power Power consumption 300W (Typical)
Operation Temperature + 0 °C ~ + 40 °C
Storage Temperature - 10 °C ~ + 50 °C
Environment
Humidity 10% -- 85%
Dimension Width x Height x Thickness 1060 x730 x 240 (mm)
Net weight No Accessory 37.5 Kg
Accessory Remote Control Transmitter, Battery (AAA X 2), Power Cord, ,User’s Manual
Choose Part Wall Mounting Bracket，S-Video Cable

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1-2 Feature Summary
42 inch Large Screen Flat Panel Plasma Display
Panel Resolution: WVGA （852 x 480 Pixels）
Panel Max Brightness: 1500 cd /m2
Panel Max Contrast Ratio: 10000:1
View Angle: horizontal ≥160º/vertical ≥160º
Built-in Single-way TV Tuner, Supporting 100channels
Full Channel TV Signal Receiving: 48.25MHz ━863.25MHz
Factory presets
Teletext WST625 for Europe
Functions of Dual Language, Stereo, Mono, Single-way Video, Single-way S-Video,3 group
SCART ,Component Signal Receiving
Supports Signal Input of 480i, 480P, 576i, 576P, 720P, 1080i(50/60Hz)
TV Receiving System: PAL/SECAM BG/DK/I/L L’
Supports PC VGA Signal Receiving
DVI –D Signal（TMDS）INPUT,Support HDTV, SDTV
External Speaker 4Ω8W×2(Option)
Internal Speaker 8Ω5W×2
8-bit Digital Video Decoder
3D Digital Comb Filter
3:2 and 2:2 Movie modes
DLTI/DCTI Brightness, Color Digital Tuning
Digital I/P Processing, Completely Digital Progressive Display
HDSPT Duel-way High Quality Digital Image Processing
Stationary Image While Switching Channels
Built-in Graphic OSD Interface
Timer Function, Turn Off Timing
Remote Control
Displays Mode Switching (Normal, Wide Screen, Full Screen, Enlargement)
Automatic Shut Down When No Signal Input
Automatic Shut Down in Blue Screen Status without Signal Input
Shows Blue Screen When No Signal Input
Microprocessor controlled scan technology

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1-3 External Interface
Most of these interfaces are located at the back-panel. There’s also a group of connectors located
on the side of this device for easier access. The following figures depict these A/V connectors.

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1-3-1 Video/Audio Inputs
The following sections specify the video/audio inputs for P42S351
1-3-1-1 TV Antenna Interface
①. TV Antenna Connector
P42S351 shall provide a f-type cable connector with 75 ohms termination on its back panel for
reception of radio frequency signals.
②. TV Systems
PAL/SECAM
③. TV Channel Coverage
the RF tuner shall be capable of covering 48.25MHZ to 863.25MHZ and tuning to the following
channels:
1-3-1-2 Component Intputs
We have AV input jacks for VIDEO/AUDIO and S-VIDEO/AUDIO.
COMPONENT2 INPUT
YPbCbPrCrL R / /
COMPONENT1 INPUT
YPbCbPrCrL R / /
If your DVD or VCD player is equipped with Y PbPr(Y Cb Cr) signal output, you can connect these
signals to the component signal input end of the TV to get better image quality, as the figure shows.
Note: when you find picture scrolling, the wrong color or no color, no image or all of the
above,e check the connection. Please check if the color of the cable matches the color of the
input socket.
1-3-1-3 PC Input
P42S351 accommodates a VGA type computer connection as specified below.
①.Connect D-SUB signal cable（VGA cable, RGB cable）from PC to D-SUB jack at the back
of this TV Set. And connect the earphone cable from PC earphone output jack to AUIDO
input jack near to the D-SUB jack.
Setup:
Use the key “SOURCE”in Remote Control or “MODE”key on the front control keypad, select the

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source to “D-SUB”state. Then turn on the PC.
②.Audio Inputs
P42S351 shall provide a 3.5 mm jack for the stereo audio signal associated with VGAinput.
③. Input Formats
P42S351 shall support the following input format on its VGA input.
④. Connecter
Pin –Assignment of 15-pin
NO FUCTION
1 Red Video
2 Green Video
3 Blue Video
4 ID2
5 Ground
6 Red Ground
7 Green Ground
8 Blue Ground
9 NC
10 Sync Ground
11 ID0
12 Serial Data for DDC
13 H-Sync.
14 V-Sync.
15 Serial Clock for DDC