Acer AT4202P Service Manual Download Page 51

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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. VIDEO

、

S-VIDEO

、

YCBCR

: 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. DVI

：

digital Visual Interface, has 29pin

（

DVI-I

）

and 25pin (DVI-D), now many top grade display card

own it.

9-3

TUNER board block diagram

SCART1-RGBVFA

74LV4052

TA2024

MSP3450

TVMA

IN_S

TUNER BOARD

TL072CD

5V_SB

SW6

SW8

SW7

CVBS_OUT

SCART1

SCART3

SCART2

AV-

S-

R/L

LINK1

SW1
SW2

LINK3

SW7

CN670

SW8

QS3257

CAR

T2-

BVF

CAR

T3-

BVF

SW6

SCART1_VOUT

AV_TV

CART

1_VO

RT2

_VO

LINK2

SP CON

SW11

PipTV

Earphone

AUDIO

R/L

VIDEO

/S_VI

DEO

CAR

-R/

CAR

-R/

MainTV

8V_AU

MainTV
PipTV

SCL
SDA

TEA6415

SCART2/3-RGBVFA

S1_Y

CAR

-R/

S2_Y

S3_Y

Summary of Contents for AT4202P

Page 1: ...1 Trident EX52 compatibly model AT4202P ACER SERVICE MANUAL ...

Page 2: ...2 THIS DOCUMENT IS FOR REPAIR SERVICE INFORMATION ONLY DATE 2006 02 13 ...

Page 3: ...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...

Page 4: ... 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 ...

Page 5: ...ly 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 1...

Page 6: ...5Hz 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 ...

Page 7: ...g System PAL SECAM BG DK I L L Supports PC VGA Signal Receiving DVI D Signal TMDS INPUT Support HDTV SDTV External Speaker 4Ω 8W 2 Option Internal Speaker 8Ω 5W 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 Stati...

Page 8: ...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 ...

Page 9: ...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...

Page 10: ...ociated with VGAinput Input Formats P42S351 shall support the following input format on its VGA input 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 ...

Page 11: ...one 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 Hig...

Page 12: ... SCART signal input jacks Scart Connector male Output connector Input connector PIN1 Audio right out PIN2 Audio right in PIN3 Audio left or mono out PIN6 Audio left or mono in PIN4 Audio return PIN4 Audio return PIN7 Blue out PIN7 Blue in PIN5 Blue return PIN5 Blue return PIN11 Green out PIN11 Green in PIN9 Green return PIN9 Green return ...

Page 13: ...1 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 oper...

Page 14: ...ata 3 RXD received data 4 NC 5 FG frame ground 6 NC 7 NC 8 NC 9 NC 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 shal...

Page 15: ...ss or scratch PDP panel surface with anything hard 2 Please wipe out PDP panel surface with absorbent cotton or soft cloth in case of it being soiled 3 Please 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 4 Do not apply any strong mechanical shock to the PDP panel 2 2 Precaution of Operation 1 P...

Page 16: ...Page 16 of 99 3 Operation 3 1 Operation of Remote Control Transmitter ...

Page 17: ...n 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...

Page 18: ...he menu 3 3 2 Search Menu In the SEARCH menu press or Enter to enter submenus Auto Programme Scan all TV channels and store them in the memory automatically Programe to 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 Auto Search Press Menu button to ...

Page 19: ...n to the previous level menu and press Menu again to exit the menu Storage the saved serial number of the programme Sound System Preset TV sound system D K I B G or L Cable or Air switch signal among V UHF cable 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 ...

Page 20: ...ust 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...

Page 21: ...nu and press Menu again to exit the menu 3 3 5 Time Menu 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 ...

Page 22: ...n 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 VGA DVI component1 2 are not enabled Cinema ON OFF 3 2 pull down mode NR Noise reduce adjust 0Æ1Æ2 step Reset Reset default value about the H V position H V size and the phase j...

Page 23: ...ote control to enter it PIP INPUT press W select the PIP source or press the PIP SOUR key on remote control to swith the small picture WIN POSITION press W select the PIP window position or press the PIP POS key on remote control to move the PIP window PIP 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 thro...

Page 24: ... SCALER YPbPr ANALOG INPUT 4 TV SIGNAL AND SCART RGB SAA7117 8BIT DIGITAL INPUT 5 AV SIGNAL TRIDENT SCALER AV INPUT PORT 4 Trouble 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 ...

Page 25: ...Page 25 of 99 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 ...

Page 26: ...Page 26 of 99 4 2 1 2 Check Image board procedure ...

Page 27: ...Page 27 of 99 4 2 2 Picture Display Dynamic picture abnormal ...

Page 28: ...Page 28 of 99 4 2 3 DVI picture abnormal ...

Page 29: ...Page 29 of 99 4 2 4 Component picture abnormal ...

Page 30: ...Page 30 of 99 4 2 5 RGB Picture Abnormal ...

Page 31: ...Page 31 of 99 4 2 6 Video Picture Abnormal ...

Page 32: ...Page 32 of 99 4 2 7 DC Power Supply ...

Page 33: ...Page 33 of 99 4 3 TUNER AUDIO BOARD FAULTS HANDLING 4 3 1 Check DC Power Supply 4 3 2 Tuner Faults Handling ...

Page 34: ...Page 34 of 99 4 3 3 Tuner Audio Board Faults Handling ...

Page 35: ...alue to maximum Standard x 295 10 y 305 10 1 4 Set Pattern generator to 640X480 60 DVI output and 32 Gray scale pattern 1 5 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...

Page 36: ...o 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 sc...

Page 37: ...r 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 connector Press 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 ser...

Page 38: ...e last byte of data table reference to the note of DVI programming picture and so on If the recording 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 7 Flash Update 7 1 The list of Instrument 1 Prepare 1 piece of...

Page 39: ...l open LED is blue press confirm 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 MX29LV040 SST 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 ...

Page 40: ...e 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 menu watch the edition of soft ware whether or not the same with edition of writing ...

Page 41: ...Page 41 of 99 8 Software Administer Block diagram 8 1 Main Block diagram Kernel part ...

Page 42: ...lock diagram ProcessCommand tvAppSetOSD toeLoadOSDItems DirectMenus tdSetSysTimer toeResetMenuStatus tdClearSysTimer bDirectMenu _TRUE_ _VK_AV TV_ toeInvokeMenu4 toeUserDrawOSDMenu toeDrawOSDMenu2 ucCurrentMainMenuID t_TOE ucMenuID ...

Page 43: ...Page 43 of 99 8 3 MENU key Block diagram bEEpromOnline _VK_MENU_ toeUserGetPersistentItemValue ProcessCommand bMainMenu _TRUE_ toeUserGetPersistentItemValue tvAppSetOSD tdSetSysTimer tdClearSysTimer ...

Page 44: ...Page 44 of 99 8 4 Mode Check Block diagram ...

Page 45: ...Page 45 of 99 8 5 SCART Key Choose Process ProcessCommand ...

Page 46: ...howXDDemo _TRUE_ toeLoadOSDItems bNeedUpdateOSD clearSysTimer _OSDTIMER_ ClearSysTimer _SOUNDINFO_ ScartSourcebak MPSource NeedUpdataOSD PoweronStart ShowNoSingal NoSignal UnKnowSignal NeedClearTimer MPSourceIsScart ScartSourcebak MPSource ...

Page 47: ... N Y N Y N Y IsRealKey ShowProgramStatus TranslateTeletextKey GetTTSysState _TT_STATE_TEXT_ NeedBlackScreen AutoSleepTimer 0 SetSysTimer tdCommandTT g_Timer w2HourOff 0 AutoSleepTimer AUTOSLEEP_SECOND AutoSleepTimer AppSetOSD ...

Page 48: ...er _TRUE_ NeedUpdateOSD _FALSE_ NeedClearTimer _FALSE_ g_Data bShowSoundStatus SetSysTimer ClearSysTimer _XDDEMOTIMER_ ShowInfo _TRUE_ SortShowInfo g_Data bShowInfo ShowProgramStatus ShowSoundStatus ShowProgramStatus SetSysTimer VirtualKey _VK_NOSIGNAL_ ShowSoundInfo ...

Page 49: ...nal 7 TUPC CN670 to TMPC CN210 Video Channel Sound 8 TUPC J602 to AUPC H5Z1 Extrenal Speaker 9 MGPC CN114 to IR P201 KEPC P202 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...

Page 50: ...2 LVDS L4 R3 R4 L3 DDR ROM SAA7117A 4Mx32 24bit PIP Decode BA7657F MainTV PipTV Audio DVI PC P P V V 8bit SDA SCL SCART2 3 SCART1 MENU Source S Video From side board CN127 RS232 Pb2 Pb Pr Y1 Pr2 Y2 Audio PC Audio DVI U112 4052 P 1 L R P 2 L R S W 3 S W 4 P I P A V Main AV SW1 SW2 AOUT_R L 8V_AU SW8 SW7 SW6 5V_SB SW11 Main Board CVBS_2_T Video ...

Page 51: ...equency 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 DVI digital Visual Interface has 29pin DVI I and 25pin DVI D now many top grade display card own it 9 3 TUNER board block diagram SCART1 RGBVFA AU DI O 2 74LV4052 TA2024 MSP3450 T V M A I N _ S I F TUNER BOARD TL072CD 5V_SB AU DI O 4 SW6 ...

Page 52: ...ming946 Pattern946 color bar picture YCbCr Timing946 Pattern946 color bar picture Y Luminance Signal Red Signal YCbCr Timing946 Pattern946 color bar picture YCbCr Timing 949 Pattern936 Full White Picture Blue Signal Y Luminance Signal YCbCr Timing 949 Pattern921 Gray Picture ...

Page 53: ...ern946 color bar picture YPbPr Timing955 Pattern946 color bar picture Y Luminance Signal Red Signal YPbPr Timing955 Pattern946 Color bar picture Blue Signal YPbPr Timing953 Pattern921 Gray Picture YPbPr Timing954 Pattern936 Full White Picture ...

Page 54: ... Color bar picture Video Timing949 Pattern936 Full White Picture S VIDEO Video Timing949 Pattern921 Gray Picture S video Timing946 Patern946 Color bar picture S video Timing949 Pattern936 Full White Picture S video Timing949 Pattern921 Gray Picture ...

Page 55: ...2 E rank U602 Y C separate Out pin84U611 In pin73 Video Timing 949 Pattern936 Full White Picture Video Timing 949 Pattern936 Full White Picture U602 Y C separate In pin88 Q602 E rank U602 Y C separate Out pin84U611 In pin73 Video Timing 949 Pattern936 Full White Picture Video Timing 949 Pattern921 Gray Picture Decoder output 8bit digital signal U602 Y C separate In pin88 Q602 E极 ...

Page 56: ... U611 Decoder output 8bit digital signal S VIDEO S Video Timing 946 Pattern946 Color bar picture S Video Timing 946 Pattern946 Color bar picture U600 pin5 Q600 E rank U600 PIN18 U602 pin88 S Video Timing 946 Pattern946 Color bar picture S Video Timing 949 Pattern946 Color bar picture U602 pin84 U611 pin73 U611 output 8bit digital signal ...

Page 57: ...re U600 pin5 Q600 E rank U600 pin18 U602 pin88 S Video Timing 949 Pattern936 Full White Picture S Video Timing 949 Pattern921 Gray Picture U602 pin84 U611 pin73 U600 pin5 Q600 E rank S Video Timing 949 Pattern921 Gray Picture S Video Timing 949 Pattern921 Gray Picture U600 pin18 U602 pin88 U602 pin84 U611pin73 ...

Page 58: ...46 Color bar picture Y Signal L618 R Signal L619 YCbCr Timing 946 Pattern946 Color bar picture YCbCr Timing 949 Pattern936 Full White Picture B Signal L617 Y Signal L618 YCbCr Timing 949 Pattern936 Full White Picture YCbCr Timing 949 Pattern921 Gray Picture R B Signal L619 L617 Y Signal L618 ...

Page 59: ...re Full White Picture R B L619 L617 Signal Decoder output 8bit digital signal YPBPR YPbPr Timing 955 PATTERN946 Color bar picture YPbPr Timing 955 Pattern946 Color bar picture Y Signal L611 R Signal L612 YPbPr Timing 955 Pattern946 Color bar picture YPbPr Timing 954 Pattern936 Full White Picture B Signal L610 Y Signal L611 ...

Page 60: ...icture YPbPr Timing 953 Pattern921 Gray Picture R B Signal L612 L610 Y Signal L611 YPbPr Timing 953 Pattern921 Gray Picture R B Signal L612 L610 R G B RGB Timing4 Pattern101 Pane Picture RGB Timing4 Pattern101 Pane Picture R FL700 Waveform G FL701 Waveform ...

Page 61: ...icture B FL702 Waveform H FL704 Waveform RGB Timing4 Pattern101 Pane Picture RGB Timing4 Pattern105 Full White Picture V FL705 Waveform RGB FL700 701 702 Waveform RGB Timing4 Pattern105 Full White Picture RGB Timing4 Pattern105 Full White Picture H FL704 Waveform V FL705 Waveform ...

Page 62: ...5 Window Picture R FL700 Waveform G FL701 Waveform RGB Timing172 Pattern105 Window Picture RGB Timing172 Pattern105 Window Picture B FL702 Waveform H FL704 Waveform RGB Timing172 Pattern105 Window Picture RGB Timing4 Pattern27 Color bar picture V FL705 Waveform R FL700 Waveform ...

Page 63: ...ming4 Pattern27 Color bar picture RGB Timing4 Pattern27 Color bar picture G FL701 Waveform B FL702 Waveform RGB Timing4 Pattern27 Color bar picture RGB Timing4 Pattern27 Color bar picture H FL704 Waveform V FL705 Waveform ...

Page 64: ... 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 NOTICE This Picture For SDI...

Page 65: ...y 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 NOTICE This Picture For LG Panel Power In the following picture it is successively 1 to 7 pin of CN123 from left to ...

Page 66: ... 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 power Among them 1pin and 2pin connect 12V 3pin 4pin 6pin connect GND 5pin no connect PLS consult nether oicture ...

Page 67: ...Page 67 of 99 12 Mechanical Introduction 12 1 PDP Internal view Image Borad Tunner Board Y main SMPS X main Y buffe upper Y buffe lower Logic F buffer Logic E buffer ...

Page 68: ......

Page 69: ...Page 69 of 99 12 2 Mechanical of cabinet front disassembly ...

Page 70: ...he 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 1 2 3 ...

Page 71: ...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 1 2 3 ...

Page 72: ...lly 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 4 After remove the TUNER connect 4 5 Remove the Rear Low Cover as the direction arrowhead showed 5 1 2 3 4 5 ...

Page 73: ...Main Board MGPC and TUNER AUDIO Board TUPC removal 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 3 Remove the MGPC board from PCB plate 4 Done 6 1 2 MGPC plate ...

Page 74: ... 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 Remove the four silver screws 1 2 Pull the Bezel downside 2 then push and take out the KEY board assembly 3 1 2 1 PCB plate ...

Page 75: ...s to disassemble the key board from Key button 12 3 7 Side AV Board Removal 1 Remove the two silver screws 1 2 Remove the side cover from Side AV board 2 3 Disconnect the blue circularity from Side AV board 4 Remove the four silver screws 3 1 2 3 ...

Page 76: ...inum 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 1 1 1 1 ...

Page 77: ...Page 77 of 99 12 4 Panel Wiring diagram ...

Page 78: ...Page 78 of 99 13 PCB LAYOUT 13 1 Image broad PCB LAYOUT PASTE MASK TOP ...

Page 79: ...Page 79 of 99 PASTE MASK BOTTOM ...

Page 80: ...Page 80 of 99 13 2 TUNER board and AUDIO board PCB LAYOUT TOP ...

Page 81: ...Page 81 of 99 BOTTOM ...

Page 82: ...Page 82 of 99 14 Schematic diagram ...

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