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ACER SERVICE MANUAL
Trident EX52 compatibly model: AT4202P

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THIS DOCUMENT IS FOR REPAIR SERVICE INFORMATION ONLY.

DATE2006/02/13

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

4Trouble shooting chart.......................................... .................................. ..................................... 4-1 PANEL Trouble shooting...................................................... .............................................. 4-2 Solution process of MGPC0........................................ ...... ....... ........... ...... ................ ...... 4-2-1 Panel cannot be lit up................................................. .............................................. 4-2-1-1 Check peripheral circuits procedure....................... .............................................. 4-2-1-2 Check Image board procedure................................ ............................................. 4-2-2 Picture Display --Dynamic picture abnormal....................................................... 4-2-3 DVI picture abnormal.................................................. ........................... .................. 4-2-4 Component picture abnormal......................................... .............. .............................. 4-2-5 RGB Picture Abnormal......................................................... ................... .......... ..... 4-2-6 Video Picture Abnormal.................................................................................. 4-2-7 DC Power Supply......................................................................................... 4-3 TUNERAUDIO BOARD FAULTS HANDLING............................................................ 4-3-1 Check DC Power Supply....................................................................................... 4-3-2 Tuner Faults Handling......................................................................................... 4-3-3 TunerAudio Board Faults Handling.......................................................................

24 24 25 25 25 26 27 28 29 30 31 32 33 33 33 34

5White-Balance Adjustment............................................................................................. 35 5-1 Equipments list................................................... .................................................. 35 5-2 Preparation and Adjustment process.......... ............................................................. 35 6 DDC program and test..................................................................................................... 6-1 Equipments list and prepare.................................................................................... 6-2 Program and test process......................................................................................... 7Flash Update............................................................................................................... 7-1 The list of Instrument............................................................................................... 7-2 The operation explaining Flash Update....................................................................... 8Software Administer Block diagram................................................................................. 8-1 Main Block diagram Kernel part........................................................................... 8-2 SOURCE key Block diagram....................................................................................... 8-3 MENU key Block diagram......................................................................................... 8-4 Mode Check Block diagram..................................................................................... 8-5 SCART Key Choose Process.................................................................................... 9Block diagram & Explain.................................................................................................. 9-1 PDP block diagram and functions.......................... .............. .................................... 9-2 Image board block diagram and signal introduce........................................................... 9-2-1 Image board block diagram.................................................................................... 9-2-2 Input signal introduce............................................................................................. 9-3 TUNER board block diagram..................................................................................... 37 37 37 38 38 38 41 41 42 43 45 45 49 49 50 50 51 51

10Waveform of signal........................................... ................... .... .................................... 52 10-1 Waveform of input signal...................... ................... .... .......................................... 52 10-2 Signal waveform in the image board. ................... .... ............................................... 55 1111Check 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..................................................................... 11-2 AUDIO and TUNER Board CHECK.......................................................................... 12Mechanical Introduction............................................................................................. 12-1 PDP Internal view................................................................................................. 12-2 Mechanical of cabinet front disassembly................................................................... 12-3 Disassembly and assembly................................................................................... 12-3-1 PDP stand removal.................................................................................... 12-3-2 Back Cover Removal.................................................................................. 12-3-3 Rear Low Cover removal.............................................................................. 12-3-4 Main Board(MGPC) and TUNER AUDIO Board (TUPC)removal........................... 12-3-5 PCB Plate Removal................................................................................... 12-3-6 Key Board Remove................................................................................... 12-3-7 Side AV Board Removal............................................................................... 12-3-8 Panel Module Removal................................................................................ 12-4 Panel Wiring diagram.......................................................................................... 13PCB LAYOUT ............................................................................................................ 13-1 Image broad PCB LAYOUT................................................................................. 13-2 TUNER board and AUDIO board PCB LAYOUT........................................................

66 66 67 67 68 69 69 70 71 72 73 74 75 76 77 79 79 80

14 Schematic diagram....................................................................................................... 83

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1SPECIFICATION 1-1-1 General Specificaation Item Screen size Aspect Display pixels Effective display size Number of color Contrast Ration Peak brightness TV Tuning Sound system Color system Video S-Video SCART Europe 21Pin Video Mode Component 1,2 (Y Pb Pr/ Y Cb Cr) Specification 42 inch plasma display panel 16:9 852 x 480 (WXGA) 933mm x 533mm 16.7 million colors 10000:1 (in dark room) 1500 cd/ 1 Tuners, 100 channel save D/K I B/G L/L' PAL /SECAM RCA x 1 S-Video1 x 1 SCART x 3 PAL, NTSC, SECAM Audio: L/R x 1 Audio: L/R x 3 PAL, NTSC, SECAM PAL, NTSC, SECAM 480i (60Hz) Y Cb Cr 576i (50Hz) 480P (60Hz) 720P (60Hz) Y,Pb,Pr 576P (50Hz) (HDTV) 1080i(50/60HZ) AnalogD-Sub 15 pin DDC / 2B

Panel Spec

TV Mode

Audio: L/R x2

Signal input Plug and play Support Frequency PC Mode RGB Mode(D-Sub Mode) RGB Mode (D-Sub Audio) Signal input Plug and play Support Frequency DVI Mode DVIMode

Video Out Audio Out Power Environment Dimension Net weight Accessory Choose Part

DVI Audio SCART Europe 21Pin Speaker Amplifier Audio Output Power input sources Power consumption Operation Temperature Storage Temperature Humidity Width x Height x Thickness No Accessory

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) Earphone (3.5ø) DigitalDVI-D 24 pin DDC / 2B 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) 480i,576i,480P, 576P, 720P, 1080i(50/60Hz). Earphone (3.5ø) PAL, NTSC, SECAM External:10W × 2 Earphone (3.5ø) 100--240V~ ,50/60Hz 300W (Typical) + 0 °C ~ + 40 °C - 10 °C ~ + 50 °C 10% -- 85% 1060 x730 x 240 (mm) 37.5 Kg

Remote Control Transmitter, Battery (AAA X 2), Power Cord, ,User's Manual Wall Mounting BracketS-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 SignalTMDSINPUT,Support External Speaker 4 8W×2(Option) Internal Speaker 8 5W×2 8-bit Digital Video Decoder 3D Digital Comb Filter HDTV, SDTV

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 . 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. . TV Systems PAL/SECAM . 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.

COMPONENT1 INPUT Y Pb / Cb Pr / Cr

L

R

COMPONENT2 INPUT Y Pb / Cb Pr / Cr

L

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. . Connect D-SUB signal cableVGA cable, RGB cablefrom 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" Remote Control or "MODE" in key on the front control keypad, select the
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source to "D-SUB" state. Then turn on the PC. Pin Assignment of 15-pin NO 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 FUCTION Red Video Green Video Blue Video ID2 Ground Red Ground Green Ground Blue Ground NC Sync Ground ID0 Serial Data for DDC H-Sync. V-Sync. Serial Clock for DDC

.Audio Inputs P42S351 shall provide a 3.5 mm jack for the stereo audio signal associated with VGAinput. . Input Formats P42S351 shall support the following input format on its VGA input.

. Connecter

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DVI INPUT VGA

VGA L / R VGA INPUT DVI L/ R

1-3-1-4 DVI input P42S351 shall accommodate a DVI type digital video source as specified in this section. . Video Inputs Connect DVI-D 24 Pin signal cableTMDS cablefrom equipment with DVI-D jack to the back of this TV Set. And connect the earphone cable from equipment with earphone output jack to AUIDO input jack near the DVI-D jack. Setup: Use the key "SOURCE"in Remote Control or "MODE"key on the front control keypad, select source to "DVI"state. Then turn on the equipment.

. Audio Inputs P42S351 shall provide a 3.5 mm jack for the stereo audio signal associated with DVI input. . HDCP support HDCP must be supported on the DVI input. Refer to the High-bandwidth Digital Content Protection System specification version 1.1 for details. . Input Formats
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P42S351 shall support the following input format on its DVI input.

1-3-1-5 SCART Input
SCART 1 SCART 2 SCART 3

We have three SCART signal input jacks . Scart Connector male Output connector PIN1 PIN3 PIN4 PIN7 PIN5 PIN11 PIN9 Audio right out Audio left (or mono) out Audio return Blue out Blue return Green out Green return PIN2 PIN6 PIN4 PIN7 PIN5 PIN11 PIN9
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Input connector Audio right in Audio left (or mono) in Audio return Blue in Blue return Green in Green return

PIN15 PIN13 PIN16 PIN14 PIN19 PIN17 PIN 21

Red out Red return RGB status out RGB status return Sync (composite video) out Sync return Shield

PIN15 PIN13 PIN16 PIN14 PIN20 PIN 18 PIN 21

Red in Red return RGB status in RGB status return Sync (composite video) in Sync return Shield

1-3-2 Audio/Video Outputs 1-3-2-1 Composite Video Output P42S351 shall provide a RCA type receptacle on its back panel for composite video output.

(Side board)

1-3-2-2 Analog Audio Output P42S351 shall provide two RCA type receptacles for external connection to a stereo amplifier. 1-3-2-3 Head Phone P42S351 shall provide a 3.5 mm jack at side of 42MF130A/37 for external connection of a stereo headphone. 1-3-3 Power Interface 1-3-3-1 Power Connector P42S351 shall support an IEC C-13/C-14 (Standard) type male power receptacle for connection to AC power source. 1-3-3-2 Power Input Range The operating range shall be from 100 to 240 VAC sinusoidal. Input power frequency range shall be from 50 to 60 Hz over the specified input voltage range. 1-3-3-3 Power Consumption The monitor is equipped with a power-management function (DPMS) for analogRGB and component

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RGB input when DPMS setting is actived.There is a delay, according to the DPMS setting before the transition from Onstate to any power saving state to avoid unintentionally entering of a power saving stage during display resolution and timing mode changes. Transition from any power saving state to another can be instantaneous. The recovery from Off-state requires no manual power on. 1-3-4 Service Interface P42S351 shall provide a 9-pin D-sub connector on its back panel for firmware upgrading purpose. This interface shall conform to RS-232 standard with the following pin-outs. 9PIN For Software Update And External Control NO 1 2 3 4 5 6 7 8 9 NC TXD transmitted data RXD received data NC FG frame ground NC NC NC NC FUCTION

The method of firmware upgrading please see "Flash update process" chapter. 1-4 User interface 1-4-1 Power Indicator P42S351 shall make use of an LED type indicator located on the front of leftthe display. The LED color shall indicate the power states as given in the following table. LED colors

1-4-2 Remote Control Receiver P42S351 shall provide an infra-red (IR) optical detector on its front panel for use as the receiver for remote controller signal. The IR communication protocol shall conform to RC-5 standard. The minimum IR reception angles shall be +/- 30 degrees horizontally and vertically. The required operating distance of the remote control shall be 7 m. 1-5 External Mounting Requirements (Unpacked for a long time) 42MF130A/37 shall be designed so that the display enclosure can be easily removed from the
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base for external mounting applications. When the base is removed, there shall be no additional non-removable parts that are visible from the front of the display 1-6 Environmental Requirements 1-6-1 Temperature Ranges Operating Temperature..............................................................0°C to 40°C Storage Temperature........................................................ .......10°C ~ + 50°C 1-6-2 Humidity Operating .............................................................................. 10% ~ 85%

Storage Relative Humidity...............................................................5% ~ 85% 1-6-3 Altitude Operating ............................................................... ...................... ......... (0 to 3,000 m) Non-Operating............................... .................................... ........ . ........... (0 to 3,000 m) 1-6-4 Vibration and Shock All testing shall be done in each of three mutually perpendicular axes, referenced to the positionof the system as it is in front of the user (i.e., front-to-back, side-to-side, and top-to-bottom). 2Precautions and Notices 2-1 Precaution of assembly 1Please do not press or scratch PDP panel surface with anything hard. 2Please wipe out PDP panel surface with absorbent cotton or soft cloth in case of it being soiled 3Please wipe out drops of adhesive like saliva and water in PDP panel surface immediately. They might damage to cause panel surface variation and color change 4Do not apply any strong mechanical shock to the PDP panel 2-2 Precaution of Operation 1Please be sure to unplug the power cord before remove the back-cover. (make sure the power is turn-off) 2Please do not change variable resistance settings in PDP MODULE; They are adjusted to the most suitable value. If they are changed, it might happen LUMINANCE does not satisfy. 3Please consider that PDP MODULE takes longer time to become stable of radiation characteristic in low temperature than in room temperature. 4Please pay attention to displaying the same pattern for very long-time. Image might stick on PDP.

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3Operation 3-1 Operation of Remote Control Transmitter

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3-2 Key function

3-3 OSD Main Explanation Main Fuction 1. Press " MENU" key on Remote Control or the front panel to open or close the menu. 2. Press " " to select an item. 3. Press "" or "Enter" to enter a sub menu item or an enable adjusted item. 3-3-1 Main Menu Press the SOURCE button on the remote control to enter the "SOURCE" Menu. Press "" to switch among TV, AV1,AV2, AV3,AV4, S-Video, Component1/ Component2 , VGA and DVI, Press "Enter" to enter. TV:Enter the TV function. AV1/AV2/AV3/AV4:Enter the Scart or AV function.

S-VIDEO:Enter the S-Video function. Component1/ Component2:Enter the component video function. VGA:Enter the VGA mode. DVI:Enter the DVI mode.
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Press the Menu button on the remote control or the control panel to enter the main menu. Press " " button to select "SEARCH" menu, "VIDEO" menu, "AUDIO" menu, "TIME" menu, "SETTING" menu ,"SCREEN"menu or "PIP"menu. Press "" or "ENTER" button to enter the next level submenu, press "EXIT" button close all the menu.Press " " or MENU button to previous level submenu .Press "EXIT"colse all the menu.

3-3-2 Search Menu In the SEARCH menu, press "" or "Enter" to enter submenus.

Auto ProgrammeScan all TV channels and store

them in the memory automatically.

Auto Search:Press Menu button to display the main menu. Press "" or "Enter" to enter the next level menu, then press "" or "Enter" to start automatical searching. Press Exit or menu button to stop searching. Programeto manually search for a new channel, the current channel will be overwritten by the searched new channel. For adding a new channel, please set the "storage" to an empty channel, then start manual searching.
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Deleted: a

Storage:the saved serial number of the programme. Sound System: Preset TV sound system: D/KIB/G or L Cable or Air: switch signal among V/UHFcable. Channel No.: to set serial numbers for programs.

Color System: to select color systems for programs:Auto
Manual Search: to manually search a new channel, the current channel will be overwritten by the searched new channel. Press Menu button to display the main menu, use"CH+/ CH -" to select a channel. Press "" or "Enter"to enter the next level menu, and use "CH+/ CH -" to select "Manual Search", then press "" or "Enter" to start manual searching. Fine: to finely tune the current channel to get better images. Name:Channel name. Programme Edit Press"" or "Enter"to Display "To Set",press "Enter"into edit. see the right picture.(Press Red button on remote control to delete. Press Green button to Copy. Press Yellow button to Move. Press cyan button to skip
Deleted: use Deleted: use " "

Favourite Prog.Press "" or "Enter"enter Favorite Menu or Press the

"FAVORITE" button on the remote control.preset you the favorite channel number, press"Enter"to storage.

Press Menu button to display the menu, use " " to select an item. Press "" or "Enter" to adjust the value of the selected item. Press Exit to return to the previous level menu and press Menu again to exit the menu.

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3-3-3 Video Menu

Video Mode: switch picture among DynamicStandardMildGameUser Color Temp: Color temperature selectCoolNormal Warm UserRedGreen Blue adjust. Color Adjust:Set color parameter adjust. Contrast: To adjust the contrast ratio Brightness: To adjust the brightness Colour: Color chroma adjust 0 ~ 100 Adjust 0 ~ 100 Adjust 0 ~ 100 Adjust

Sharpness: To adjust the sharpness, 0 ~ 100 adjust. Tint: To adjust color phase,to make the image change to red or green (Only for NTSC) 0 ~ 100 Adjust Press Menu button to display the menu, use " " to select an item. Press "" or "Enter" to adust the value of the selected item. Press Exit to return to the previous level menu and press Menu again to exit the menu. 3-3-4 Audio Menu

Audio Mode: Switch Audio Mode among FlatMusicMovieSportsUser. Subwoof: not supported. Balance: Adjust the AUDIO level difference between the left and right speakers
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L50 ~ 0 ~ R50 Adjust Treble: Adjust the treble sound Bass: Adjust the bass sound TV Speaker: Switch Internal /External speaker Press Menu button to display the menu, use " " to select an item. Press"" or "Enter" to adjust the value of the selected item. Press Exit to return to the previous level menu and press Menu again to exit the menu. 3-3-5 Time Menu
Deleted: use "

0 ~ 100 Adjust 0 ~ 100 Adjust

Clock: Set

the current time.

Off Time: The time for power Off. ON Time:The channel shall be displayed when power on time is up. Press Menu button to display the menu, use " " to select an item. Press "" or "Enter" to adust the value of the selected item. Press Exit to return to the previous level menu and press Menu again to exit the menu. 3-3-6 Setting Menu

Language: to select a language for menu: English, Français,Deutsch, Espaol,Italiano. Video Output: Can not selected.
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Child Lock: On/ Off lock. Select ON , lock the keypad, at the same time the screen is be blanked, you must input your password. Change Password: Need password to change settings,initial Default password is:888888 Press Menu button to display the menu, use " " to select an item. Press "" or "Enter" to adust the value of the selected item. Press Exit to return to the previous level menu and press Menu again to exit the menu. 3-3-7 Screen Menu

Auto Config.: Auto adjust the H/V position,H/V size and the phase. Manual Config.: Manual adjust phase clock and H/V position. (The above two functions are enabled only when D-SUB.DVI input is used). ARC: Adjust display ratio(VGADVI component1/2 are not enabled. Cinema: ON/OFF 3:2 pull down mode. NR: Noise reduce adjust 0 1 2 step. Reset: Reset default value about the H/V position,H/V size and at D-SUB,DVI source.) Press Menu button to display the menu, use " " to select an item. Press "" or "Enter" to adust the value of the selected item. Press Exit to return to the previous level menu and press Menu again to exit the menu. the phase(just be used

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3-3-8 Pip Menu

INPUT: switch main signal among TV, AV1,AV2,AV3,AV4, S-Video, Component1/ Component2 , VGA and. DVI. PIP:Switch the PIP function ON/OFF. (press the "SWAP"key under the "PIP"situation ,if the main picture can't be small picture,turn small picture into the main picture,press the "PIP"key on remote control to enter it . PIP INPUT: press" " select the PIP source or press the "PIP SOUR"key on remote control to swith the small picture. WIN.POSITION:press" " select the PIP window position or press the "PIP POS"key on remote control to move the PIP window.

PIP: Picture In Picture mode After entering the PIP mode,the sound will follow the main picture,user can transmite the sound to sub picture through press the"***"key to highlight the PDP mode. Press SWAP" key ,user can exchange between the " main and sub picture.

PIP

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3-8-1-1 PIP Input Mode

3-8-1-2 PIP Function Table List 1 : TRIDENT SCALER PC RGB ANALOG INPUT 2 : TRIDENT SCALER 24 BIT DIGITAL INPUT 3 : TRIDENT SCALER YPbPr ANALOG INPUT 4 : TV SIGNAL AND SCART RGB --> SAA7117 --> 8BIT DIGITAL INPUT 5 : AV SIGNAL --> TRIDENT SCALER AV INPUT PORT

4Trouble shooting chart If replace "IMAGE BOARD", Please re-do "DDC writing" program & "WHITE-BALANCE" & Flash Update. If replace PANEL module, Please re-do "white-balance adjust"

4-1 PANEL Trouble shooting

Please reference the "PANEL Service Manual".

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4-2 Solution process of MGPC If change new Image board, it is necessary to refresh DDC and readjust white balance. 4-2-1 Panel cannot be lit up 4-2-1-1 Check peripheral circuits procedure

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4-2-1-2 Check Image board procedure

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4-2-2 Picture Display --Dynamic picture abnormal

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4-2-3 DVI picture abnormal

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4-2-4 Component picture abnormal

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4-2-5 RGB Picture Abnormal

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4-2-6 Video Picture Abnormal

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4-2-7 DC Power Supply

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4-3 TUNERAUDIO BOARD FAULTS HANDLING 4-3-1 Check DC Power Supply

4-3-2 Tuner Faults Handling

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4-3-3 TunerAudio Board Faults Handling

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5White-Balance Adjustment 5-1 Equipments list Chroma7100 1set VG828 video signal generator 1set Chroma-2326 1set 5-2 Preparation and Adjustment process 1 Preparation: Connect rear Video port of PDP with AV port of VG-828. Connect component port of PDP with YPbPr port of VG-828 Connect VGA port of PDP with corresponding port of Chrom2326 Turn power of PDP and test instrument on. Before open lens, Press O-CAL of Chrom-7100 and revise lens. 2Adjustment process DVI Mode 1.1 1.2 1.3 Set Pattern generator to 640X480(60) DVI output and 70% white screen pattern. Set OSD picture standard value. Used remote control to entry factory mode, adjust Red gain, Green gain, Blue gain value in "white balance page" and make Chroma 7100 x, y value into color temperature spec and Y value to maximum. ( Standard: x = 295±10, 1.4 1.5 y = 305±10 )

Set Pattern generator to 640X480(60) DVI output and 32 Gray scale pattern. Used remote control to entry factory mode, adjust Green offset value and Green gain value in "white balance page" to make 32 gray scale pattern can be distinguished 28 gray scale at least,

and the most darkness level is totally dark, and make sure the most brightness two level can be distinguished 1.6 Set Pattern generator to 640X480(60) DVI output and 20% white screen pattern. 1.7 Used remote control to entry factory mode, adjust Red offset, Blue offset value in "white balance page" ±10, 1.8 and make Chroma 7100 x, y value into color temperature spec (Standard: x = 295

y = 305±10)

Repeat step 1.3 to 1.7 until 70% & 20% white screen pattern x, y value in spec.

RGB Mode: 1.1 1.2 1.3 Set Pattern generator to 640X480(60) VGA output and 70% white screen pattern. Set OSD picture standard value. Used remote control to entry factory mode, adjust Red gain, Green gain, Blue gain value in "white
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balance page" and make Chroma 7100 x, y value into color temperature spec and Y value to maximum. ( Standard: x = 295±10, 1.4 1.5 y = 305±10 )

Set Pattern generator to 640X480(60) VGA output and 32 Gray scale pattern. Used remote control to entry factory mode, adjust Green offset value and Green gain value in "white balance page" to make 32 gray scale pattern can be distinguished 28 gray scale at least, and the most darkness level is totally dark, and make sure the most brightness two level can be distinguished

1.6 1.7

Set Pattern generator to 640X480(60) VGA output and 20% white screen pattern. Used remote control to entry factory mode, adjust Red offset, Blue offset value in "white balance page" and make Chroma 7100 x, y value into color temperature spec (Standard: x = 295±10, = 305±10) y

1.8

Repeat step 2.3 to 2.7 until 70% & 20% white screen pattern x, y value in spec.

Component mode: 1.9 4.1 Set Pattern generator to 480P Component output and 70% white screen pattern.

1.10 Set OSD picture standard value. 1.11 Used remote control to entry factory mode, adjust Red gain, Green gain, Blue gain value in "white balance page" and make Chroma 7100 x, y value into color temperature spec and Y value to maximum. ( Standard: x = 295±10, y = 305±10 )

1.12 Set Pattern generator to 480P Component and 32 Gray scale pattern. 1.13 Used remote control to entry factory mode, adjust Green offset value and Green gain value in "white balance page" to make 32 gray scale pattern can be distinguished 28 gray scale at least, and the most darkness level is totally dark, and make sure the most brightness two level can be distinguished 1.14 Set Pattern generator to 480P Component output and 20% white screen pattern. 1.15 Used remote control to entry factory mode, adjust Red offset, Blue offset value in "white balance page" and make Chroma 7100 x, y value into color temperature spec (Standard: x = 295±10, = 305±10) 1.16 Repeat step 4.3 to 4.7 until 70% & 20% white screen pattern x, y value in spec. Video mode: 1.17 4.1 Set Pattern generator to PAL output and 70% white screen pattern. 1.18 Set OSD picture standard value. 1.19 Used remote control to entry factory mode, adjust Red gain, Green gain, Blue gain value in "white balance page" and make Chroma 7100 x, y value into color temperature spec and Y value to y

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maximum. ( Standard: x = 295±10,

y = 305±10 )

1.20 Set Pattern generator to PAL output and 32 Gray scale pattern. 1.21 Used remote control to entry factory mode, adjust Green offset value and Green gain value in "white balance page" to make 32 gray scale pattern can be distinguished 28 gray scale at least, and the most darkness level is totally dark, and make sure the most brightness two level can be distinguished 1.22 Set Pattern generator to PAL output and 20% white screen pattern. 1.23 Used remote control to entry factory mode, adjust Red offset, Blue offset value "white balance page" and make Chroma 7100 x, y value into color temperature spec (Standard: x = 295±10, = 305±10) 1.24 Repeat step 4.3 to 4.7 until 70% & 20% white screen pattern x, y value in spec. 6DDC program and test 6-1 Equipments list and prepare DDC tester 1PCS PC 1SET D-SUB cable 1PCS DVI cable 1PCS Barcode Reader 1SET Prepare before test: 1. Turn on the power of your PC and programmer, then make good connection of them. 2. Connect the D-SUB wire and DVI wire to the DDC program equipment and the PDP monitor. 6-2 Program and test process 1. Choose different DDC menu according to different customer , do use PAGE DOWN/PAGE UP to go to the submenu and parent menu until find the right model. Press enter to access the program interface. There will be shown RGB on the screen. Then switch to RGB program on the DDC connectorPress any key to access RGB program interface ,then there will be "input serial no.:" prompt on the screen. 2. Use Bar Readers to read the serial no to the program then make sure the serial no you have read is the same as on the barcode. Then set the PDP to blue screen mode, press enter to start. 3. Watch the information of the program, it means programmed OK when the following interface come out. please CHECK Manufacturer NameVendor Assigned CodeModel NameSerial Number ****[?????????****](same as Barcode)Week of Manufacture**Year of Manufacture**** Checksum**same as the last byte of data table, reference to the note of RGB programming picture and so on. 4. Press Enter to access RGB DDC test interfacefollow the DDC test pictureCHECK Manufacturer Name Vendor Assigned Code Model Name Serial Number ****[?????????****](same as Barcode) Week of Manufacture**Year of Manufacture ****Video InputAnalogChecksum**same as the last byte of data table, reference to the note of RGB programming pictureand so on. 5. Press any key to access DVI program interface, there will be "DVI" shown on the screen. Switch the of switch on the DDC connector, press any key to access DVI program interface, there will be
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y

"input serial no.:" promote. 6. Use Bar Readers to read the serial no to the program then make sure the serial no you have read is the same as on the barcode. Then set the PDP to blue screen mode, press enter to start. 7. Watch the information of the program, it means programmed OK when the following interface come out. please CHECK Manufacturer NameVendor Assigned CodeModel NameSerial Number ****[?????????****](same as Barcode)Week of Manufacture**Year of Manufacture**** Checksum**same as the last byte of data table, reference to the note of DVI programming picture and so on. 8. Press Enter to access DVI DDC test interfacefollow the DDC test pictureCHECK Manufacturer Name Vendor Assigned Code Model Name Serial Number ****[?????????****](same as Barcode) Week of Manufacture**Year of Manufacture ****Video InputAnalogChecksum**same as the last byte of data table, reference to the note of DVI programming picture and so on the recording If is failure, check the connection of equipment and record again from the step4.If all of these work does not take work ,please ask IE department for help. Notice :the "?" and "*" symbol will be changed according to the year of manufacture ,and so on. 7Flash Update 7-1 The list of Instrument 1 Prepare 1 piece of RS232 cableThe Pin connection see the Figure-1If difference, please re-connect the cableand 1 set of PC. 2 Connect the RS232 cable with PC and PDP(See the Figure-2). TO PC TO ACER PDP 9PIN (Female) 9PIN (Female) Signal Pin Signal Pin 1 1 NC RXD 2 2 TXD transmitted date TXD 3 3 RXD received date DTR 4 4 NC GND 5 5 FG frame ground DSR 6 6 NC RTS 7 7 NC CTS 8 8 NC 9 9 NC
Figure-1

7-2 The operation explaining Flash Update Note: Operation Under the situation of PDP working normally.

1. Find ISPWriter2.exe file

in the screen of computer, dblclick it

2. Enter the window, click OPENthen click LINK.Like figure 1

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3. Press the AC power switch. It will show the duologue window when PDP and PC connect correct. LED is red(If the connect is not correctit will retain like figure 1,and the PDP will open, LED is blue ) "confirm"; press

figure 2 4. Click config key, will show duologue window like figure 3:choose the type of Flash at Chip duologue window, if the chip is AMIC ,it will choose MX29LV040SST should be choose SST29SF040,other

option should the same with picture. Then click OK key;

figure 3 5. Click BIN, it will show duologue window as picture 4 ,choose the *.bin file ,click open key

figure 4
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5. Click the Prog key , it will show duologue window as picture 5 ,it start to write 6.

he soft ware ,

RE: It will use about 3 minute to write soft ware, Do not turn-off the PDP during that time; otherwise it will make the Flash IC break.

figure 5 7. Finish writing, it will show duologue window as picture 6, it mean end, click OK. Clicking DELINK key .then CLOSE key exit the programme.

figure 6

8. Turn-off the PDP. Pull out RS232 wire. then turn-on the PDP and enter factory menuwatch the edition of soft ware whether or not the same with edition of writing.

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8Software Administer Block diagram 8-1 Main Block diagram Kernel part

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8-2 SOURCE key Block diagram

_VK_AV/TV_

ProcessCommand

tvAppSetOSD

toeLoadOSDItems (DirectMenus)

tdSetSysTimer

tdClearSysTimer

bDirectMenu=_TRUE_

toeInvokeMenu4

toeDrawOSDMenu2

toeUserDrawOSDMenu

ucCurrentMainMenuID=t_TOE.ucMenuID

toeResetMenuStatus

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8-3 MENU key Block diagram

_VK_MENU_

ProcessCommand

tvAppSetOSD

tdSetSysTimer

tdClearSysTimer

bMainMenu=_TRUE_

bEEpromOnline?

toeUserGetPersistentItemValue

toeUserGetPersistentItemValue

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8-4 Mode Check Block diagram

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8-5 SCART Key Choose Process ProcessCommand

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NeedUpdataOSD

clearSysTimer(_OSDTIMER_)

toeLoadOSDItems

Y bNeedUpdateOSD? N ShowXDDemo(_TRUE_)

NoSignal || UnKnowSignal

Y

ShowNoSingal N N

NeedClearTimer

Y ClearSysTimer(_SOUNDINFO_)

N MPSourceIsScart

Y N

ScartSourcebak != MPSource

Y ScartSourcebak = MPSource

N PoweronStart

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Y ShowProgramStatus

SetSysTimer

TranslateTeletextKey

N tdCommandTT

Y

GetTTSysState != _TT_STATE_TEXT_

N

Y AppSetOSD

IsRealKey Y

N

N AutoSleepTimer

Y N NeedBlackScreen Y AutoSleepTimer = AUTOSLEEP_SECOND AutoSleepTimer = 0

g_Timer.w2HourOff = 0

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NeedUpdateOSD = _FALSE_

SortShowInfo = g_Data.bShowInfo

NeedClearTimer = _TRUE_

VirtualKey != _VK_NOSIGNAL_

N

Y ClearSysTimer(_XDDEMOTIMER_)

ShowInfo = _TRUE_

!ShowProgramStatus && !ShowSoundStatus Y ShowProgramStatus

N

NeedClearTimer = _FALSE_

SetSysTimer N !g_Data.bShowSoundStatus

Y ShowSoundInfo

SetSysTimer

ProcessCommand(ucVirtualKey)
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9Block diagram & Explain 9-1 PDP block diagram and functions

Panel

1 PSPC

2 3 4 5

MGPC

TUPC

8 9 IR/B KEPC 6 7 AUPC

TMPC

NOTICE: 1.Panel P9Z1 TO PANEL CN8001 2.Panel CN8004 TO MGPC CN120 3.Panel CN8007 TO MGPC CN121&TUPC CN183 4.MGPC JP12 to TUPC JP182 5. MGPC JP13 to TUPC JP183 6.MGPC CN127 TO TMPC CN127 7.TUPC CN670 to TMPC CN210 8.TUPC J602 to AUPC H5Z1 9.MGPC CN114 to IR P201& KEPC P202

Power Input Cable. MGPC Power MGPC Power&TUPC Power MGPC to TUPC Signal MGPC to TUPC Signal S-Video & Video Signal Video Channel Sound Extrenal Speaker IR&Key

Function of Board: 1) IMAGE Board : Control all input signals, Decode the video signal, De-interlace, and send digital signals (LVDS signal) sent from image Board and display 2) PDC Board: Power Down Control Board 3) SIDE AV Board: The input signal interface 4) Power Board: Supply Power for Panel and Image Board 5) KEY Board: POWER, Signal Source, MENU, CH+, CH - / VOL +, VOL 6) Power ON /OFF: Turn power on/off

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9-2 Image board block diagram and signal introduce 9-2-1 Image board block diagram

Main Board
LVDS
SCL SDA

4Mx32 DDR

MainTV PipTV

SVP_EX52
ROM
8bit

SCART2/3 SCART1

SAA7117A PIP Decode
AOUT_R/L PIP AV

CVBS_2_T

24bit

M16C
Sil9011
CN127 S-Video

Main AV SW6 SW7 SW8 8V_AU 5V_SB SW11 SW1 SW2

BA7657F
Video U112 SW3 SW4

RS232
Audio DVI Audio PC

4052
P2 L/R P1 L/R From side board

Y Pb Pr RS232 DVI
Audio DVI/PC

PC/RGB
Y2 Y1 Pb2 Pb Pr2 L4 Pr L3 R4 R3

Source MENU V-

V+

P-

P+

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9-2-2 Input signal introduce 1. VIDEO: transmit bright & chroma signal , it is general ,its picture quality is equal to the general VCD.S-VIDEO transmit the bright and the chroma single, and can reduce/control the cross-interfere , it is better than the Video. 2. RGB&D-SUB(Pc interface ): general RGB simulative input interface . 3. YCbCr(NTSC/PAL): is composed of one bright and two chromatism signals U/V. due to the eye is more sensitive for bright than chroma , RGB via the formulae Y=0.39R+0.50G+0.11B to transform into one bright and two chromatism signals U(R-Y), V(B-Y). 4. VIDEOS-VIDEOYCBCR: the frequency 15.6KHZ 50(PAL)/60HZ(NTSC), interleaved simulative signal. 5. YPbPr: non-interlaced signal, belong to DTV scope, support 480P,720P,1080i format, current is NTSC. 6. DVIdigital Visual Interface, has 29pinDVI-Iand 25pin (DVI-D), now many top grade display card own it. 9-3 TUNER board block diagram

TUNER BOARD
MainTV PipTV SCART1_VOUT

AV_TV

MainTV PipTV

MSP3450

TA2024

SP CON

SCART2/3-RGBVFA

TL072CD
AU O DI 4 AU O DI 2 SCART1-RGBVFA
SW6

SW7 SW8

QS3257

S1_Y

74LV4052 TEA6415
S2_Y

CVBS_OUT

QS3257

A -S / V -R L

SW6 SW7 SW8 8V_AU 5V_SB SW11 SW1 SW2

S3_Y

CN670

Q_LINK1

Q_LINK2

SCART1

SCART2

Q_LINK3

VIDEO/S_VIDEO

AUDIO R/L

S

V

R

L

Earphone

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SC RT -R V A 2 GB FA SC RT -R V A 3 GB FA

SC RT R A 1- /L SC RT R A 2- /L SC RT R A 3- /L

SC T V T AR 2_ OU

SAT_OT CR1VU

SCART3

Ma in t er un

SCL SDA

TMI_I VANSF

10Waveform of signal 10-1 Waveform of input signal YCbCr:Timing946 Pattern946 color bar picture Y Luminance Signal YCbCr:Timing946 Pattern946 color bar picture Red Signal

YCbCr:Timing946 Pattern946 color bar picture Blue Signal

YCbCr:Timing 949 Pattern936 Full White Picture Y Luminance Signal

YCbCr:Timing 949 Pattern921 Gray Picture

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YPBPR YPbPr:Timing955 Pattern946 color bar picture Y Luminance Signal YPbPr:Timing955 Pattern946 color bar picture Red Signal

YPbPr:Timing955 Pattern946 Color bar picture Blue Signal

YPbPr:Timing953 Pattern921 Gray Picture

YPbPr:Timing954 Pattern936 Full White Picture

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VIDEO Video:Timing946 Pattern946 Color bar picture Video:Timing949 Pattern936 Full White Picture

Video:Timing949 Pattern921 Gray Picture

S--VIDEO S-video:Timing946 Patern946 Color bar picture

S-video:Timing949 Pattern936 Full White Picture

S-video:Timing949 Pattern921 Gray Picture

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10-2 Signal waveform in the image board ·VIDEO Video:Timing946 Pattern946 Color bar picture Y/C separateIn pin88Q602 E rank

Video:Timing946 Pattern946 Color bar picture U602 U602Y/C separateOut pin84U611 In pin73

Video:Timing 949 Pattern936 Full White Picture U602Y/C separateIn pin88Q602 E rank

Video:Timing 949 Pattern936 Full White Picture U602Y/C separateOut pin84U611 In pin73

Video:Timing 949 Pattern936 Full White Picture Decoder output 8bit digital signal

Video:Timing 949 Pattern921 Gray Picture U602Y/C separateIn pin88Q602 E

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Video:Timing 949 Pattern921 Gray Picture U602Y/C separateOutpin84 U611 In pin73

Video:Timing 949 Pattern921 Gray Picture U611 Decoder output 8bit digital signal

·S--VIDEO S-Video:Timing 946 Pattern946 Color bar picture U600 pin5 Q600 E rank

S-Video:Timing 946 Pattern946 Color bar picture U600 PIN18 U602 pin88

S-Video:Timing 946 Pattern946 Color bar picture U602 pin84 U611 pin73

S-Video:Timing 949 Pattern946 Color bar picture U611 output 8bit digital signal

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S-Video:Timing 949 Pattern936 Full White Picture U600 pin5 Q600 E rank

S-Video:Timing 949 Pattern936 Full White Picture U600 pin18 U602 pin88

S-Video:Timing 949 Pattern936 Full White Picture U602 pin84 U611 pin73

S-Video:Timing 949 Pattern921 Gray Picture U600 pin5 Q600 E rank

S-Video:Timing 949 Pattern921 Gray Picture U600 pin18 U602 pin88

S-Video:Timing 949 Pattern921 Gray Picture U602 pin84 U611pin73

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YCBCR YCbCr:Timing946 Pattern946 Color bar picture Y Signal --L618 YCbCr:Timing 946 Pattern946 Color bar picture R Signal--L619

YCbCr:Timing 946 Pattern946 Color bar picture B Signal--L617

YCbCr:Timing 949 Pattern936 Full White Picture Y Signal--L618

YCbCr:Timing 949 Pattern936 Full White Picture R/B Signal--L619/L617

YCbCr:Timing 949 Pattern921 Gray Picture Y Signal--L618

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YCbCr:Timing 949 Pattern921 Gray Picture R/B--L619/L617 Signal

YCbCr:Timing 949946 Pattern92193694 Gray Picture/ Color bar picture/ Full White Picture Decoder output 8bit digital signal

YPBPR YPbPr:Timing 955 PATTERN946 Color bar picture Y Signal--L611

YPbPr:Timing 955 Pattern946 Color bar picture R Signal--L612

YPbPr:Timing 955 Pattern946 Color bar picture B Signal--L610

YPbPr:Timing 954 Pattern936 Full White Picture Y Signal--L611

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YPbPr:Timing 954 Pattern936 Full White Picture R/B Signal--L612/L610

YPbPr:Timing 953 Pattern921 Gray Picture Y Signal--L611

YPbPr:Timing 953 Pattern921 Gray Picture R/B Signal--L612/L610

R/G/B RGB:Timing4 Pattern101 Pane Picture R--FL700 Waveform

RGB:Timing4 Pattern101 Pane Picture G--FL701 Waveform

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RGB:Timing4 Pattern101 Pane Picture B--FL702 Waveform

RGB:Timing4 Pattern101 Pane Picture H--FL704 Waveform

RGB:Timing4 Pattern101 Pane Picture V--FL705 Waveform

RGB::Timing4 Pattern105 Full White Picture RGB--FL700/701/702 Waveform

RGB:Timing4 Pattern105 Full White Picture H--FL704 Waveform

RGB:Timing4 Pattern105 Full White Picture V--FL705 Waveform

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RGB:Timing172 Pattern105 Window Picture R--FL700 Waveform

RGB:Timing172 Pattern105 Window Picture G--FL701 Waveform

RGB:Timing172 Pattern105 Window Picture B--FL702 Waveform

RGB:Timing172 Pattern105 Window Picture H--FL704 Waveform

RGB:Timing172 Pattern105 Window Picture V--FL705 Waveform

RGB:Timing4 Pattern27 Color bar picture R--FL700 Waveform

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RGB:Timing4 Pattern27 Color bar picture G--FL701 Waveform

RGB:Timing4 Pattern27 Color bar picture B--FL702 Waveform

RGB:Timing4 Pattern27 Color bar picture H--FL704 Waveform

RGB:Timing4 Pattern27 Color bar picture V--FL705 Waveform

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11Check and Measure 11-1 Image board Test the power of each chip with the universal meter, to ground impedance and earth situation. 11-1-1 Power Check and Measure A B C D

Supply with getting red arrow point A/B/C/D that identification come out for power, image of board with the interface among having picture, it corresponding power make detection method separately among following several picture. . In the following tht picture it is successively 1pin to 5 pin of CN121 from left to right, Among them, 1pin connect 6V voltage and 3pin connect 12V;2pin and 4pin connect power,5pin no connect.

NOTICEThis Picture For SDI Panel Power

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. In the following picture it is suc cessively 1 to 11 pin of CN120 from left to right. Among them, The second pin connects STB5V and supplied the power of CPU U38,this voltage is direct provide Panel Powre Board when turn on the PDP,And this is first reason for CPU normally working,4pin is Relay on signal output,5pin connect D12V,8pin and 9pin connect 3.3V power,11pin connect D6V Power,1pin no connect,3pin/6pin/7pin connect GND.

NOTICEThis Picture For SDI Panel Power . In the following picture it is successively 1 to 7 pin of CN123 from left to right,1pin ACD siganl output ,2pin Relay on signal output,3pin connect STB5V and this is provide power for CPU U38, this voltage is direct provide Panel Powre Board when turn on the PDP,And this is first reason for CPU normally working,4pin connect GND,5pin connect VS-ON signal output,6pin conncet 5V power,7pin no connect.

NOTICEThis Picture For LG Panel Power .In the following picture it is successively 1 to 7 pin of CN123 from left to right,1pin and 2pin connect 9VSC,3pin/7pin/8pin/9pin connect GND,4pin/5pin/6pin connect 5VSC power.

NOTICEThis Picture For LG Panel Power 11-1-2 Voltage value of IC necessary STB5V +3.3VP D6V/5VSC IC U38(M30620SPGP)Pin(96,97) U101(AZ1117-33) Pin 3 NC U701(AP1084D-ADJ) Pin 3 U702(AP1084K33) Pin 3 U703(AP1084D-ADJ) Pin 3 U704(AP1084K33) Pin 3 U708(AP1084K33) Pin 3 U201(MSP3450G) Pin63 NC
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9VSC

D12V

U107(AZ1117) Pin 3 U605(TA2024) Pin24.25.29.30.33

11-2 AUDIO and TUNER Board CHECK

In the top picture it is provide Audio/Tuner Board Audio Amp powerAmong them,1pin and 2pin connect 12V,3pin/4pin/6pin connect GND,5pin no connect.PLS consult nether oicture:

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12-1 PDP Internal view

12Mechanical Introduction

Y-buffe (upper) Y-main SMPS

X-main

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Y-buffe (lower)

Image Borad Logic E buffer

Tunner Board Logic F buffer

12-2 Mechanical of cabinet front disassembly

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12-3 Disassembly and assembly 12-3-1 PDP stand removal

1

3

2

1) Unplug the AC power and all signal cables. 2) Place the PDP upside down on a tabletop (use a protection sheet or EPE bag), Take care, that this is flat and free from obstacles like screws, to prevent damaging the fragile PDP glass filter (1). 3) Remove the four black colored screws around the stand holder (2). 4) Remove the Base assembly from PDP as the direction arrowhead showed (3).

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12-3-2 Back Cover Removal

3

1

2

1). Remove the six big black colored screws in the panel holder as the red-circle showed (1). 2) .Remove the eleven black colored screws around the terminals as the green-pane showed (2). 3) .Remove the twerty-nine black colored screws around the back cover as the blue-pane showed (3).

4) .Carefully prize up the back cover from the left of the PDP (5).

5) .Carefully remove the Back Cover from the top of the PDP, and store in a safe place.
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12-3-3 Rear Low Cover removal

1

2

1). Carefully use a allen screwdriver to remove the six silver colored allen screws M3*6mm (1). 2) .Remove the five black screws(2). 3).Remove the TUNER connect (3).

3

4).After remove the TUNER connect(4).

4

5).Remove the Rear Low Cover as the direction arrowhead showed (5).

5

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6). The Rear Low Cover done(6)

6

12-3-4 Main Board(MGPC) and TUNER AUDIO Board (TUPC)removal

1

2

1). Disconnect the all connectors(green circularity). 2) Remove the six silver screws from MGPC(main board)(1) and romove six silver from TUPC(2).

MGPC plate

3) Remove the MGPC board from PCB plate.

4).Done
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12-3-5 PCB Plate Removal

2

1

PCB plate

1). Remove the two Cable Clips from the PCB Plate(2) 2) .Remove the four sliver screws(1). 3). Remove the PCB Plate 12-3-6 Key Board Remove 1

1) Remove the four silver screws(1).

2). Pull the Bezel downside(2), then push and take out the KEY board assembly(3).

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3). Remove the five silver screws to disassemble the key board from Key button. 12-3-7 Side AV Board Removal

2

1

1) .Remove the two silver screws (1). 2). Remove the side cover from Side AV board(2)

3

3). Disconnect the blue circularity from Side AV board. 4). Remove the four silver screws (3).

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12-3-8 Panel Module Removal

1 1

1

1

1) .Remove the four silver screw around the PANEL corner (1). 2).Remove all the aluminum foil around the panel (2), after assemble the new panel, must re-affix the aluminum foil, if it's broken must change a new one, otherwise, the EMI can be affected. 3). Two people hold the panel holder 1 and 2 respectively, then uplift the panel module and move it out form the front cover(Bezel), and store in a safe place.

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12-4 Panel Wiring diagram

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13PCB LAYOUT 13-1 Image broad PCB LAYOUT PASTE MASK TOP

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PASTE MASK BOTTOM

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13-2 TUNER board and AUDIO board PCB LAYOUT TOP

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BOTTOM

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14Schematic diagram

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