Acer AT2002 Service Manual Download

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Acer AT2002

Service Guide

Summary of Contents for AT2002

Page 1: ...1 Acer AT2002 Service Guide ...

Page 2: ...2 Service Guide Version and Revision No Version Release Date Revision 1 A00 Jul 15 2006 Original release ...

Page 3: ...ation Other brand and product names are trademarks and or registered trademarks of their respective holders Trademarks All other trademarks are property of their respective owners Conventions The following conventions are used in this manual Screen messages Denotes actual messages that appear on screen NOTE Gives bits and pieces of additional information related to the current topic WARNING Alerts...

Page 4: ...ment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures 1 Reorient or relocate the receiving antenna 2 Increase the separation between the equipment and receiver 3 Connect the equipment into an outlet on a circuit different fro...

Page 5: ... the grounded plug z Unplug the unit during a lightning storm or when it will not be used for long periods of time This will protect the monitor from damage due to power surges z Do not overload power strips and extension cords Overloading can result in fire or electric shock z Never push any object into the slot on the monitor cabinet It could short circuit parts causing a fire or electric shock ...

Page 6: ...ations 12 Chapter 1 Optical Specifications 13 Connecting Peripherals 14 Chapter 2 Front Panel Controls 14 Remote Control OSD Operating Instructions 16 Using The Remote Control 16 Using The OSD Menus 17 Chapter 3 LOGO 22 Chapter 4 Machine Disassembly 23 Chapter 5 Trouble Shooting 29 Chapter 6 White Balance Luminance Adjustment 34 FRU Field Replaceable Unit List 37 Exploded Diagram 38 Chapter 7 EDID...

Page 7: ...ng 5 W Mechanical Dimensions W x H x D mm 514 x 474 x 78 Weight Kg 7 4 Weight lbs 16 3 Gross weight Kg 9 4 Gross weight lbs 20 7 Wall Mounting 100mm x 100mm Analog TV system TV Colour system PAL SECAM Sound system B G D K I L Stereo system NICAM A2 TV Tuner System PLL 45 25 Mhz 862 25 Mhz Subtitles Teletext 1 5 Analog TV tuner quantity 1 Terminal Analog Tuner In Yes SCART CVBS In Out RGB In Audio ...

Page 8: ...tness control logic for LCD panel DC DC conversion to supply the appropriate power to the whole board and transmitting TTL level signals into LCD Module to drive the LCD display circuit The inverter board will drive the five CCFLs Cold Cathode Fluorescent Lamp The switching power board will provides the power ON OFF to control the TV and control LED indicator for DPMS The function keyboard and Rem...

Page 9: ...the power cord before remove the back cover be sure the power is turn off 2 Please do not change variable resistance settings in MAIN BOARD they are adjusted to the most suitable value If they are changed it might happen LUMINANCE does not satisfy the white balance spec 3 Please consider that LCD backlight takes longer time to become stable of radiation characteristic in low temperature than in ro...

Page 10: ...t have provisions for the grounded type plug the installer should attach the proper adapter to ensure a safe ground potential 2 Connect the 15 pin color display shielded signal cable to your signal system device and lock both screws on the connector to ensure firm grounding The connector information is as follow 15 Pin Color Display Signal Cable Pin NO Description Pin NO Description 1 Red Video 9 ...

Page 11: ...uency Frequency FULL Dots Lines Hz KHz Horizontal Vertical Horizontal Vertical 16 9 720 400 70 1 31 5 NEG POS YES YES YES 59 9 31 5 NEG NEG YES YES YES 72 8 37 9 NEG NEG YES YES YES 640 480 75 0 37 5 NEG NEG YES YES YES 60 3 37 9 POS POS YES YES YES 72 2 48 1 POS POS YES YES YES 800 600 75 0 46 9 POS POS YES YES YES ...

Page 12: ...ion General Specifications NO Item Specification Remark 1 Display resolution pixel 800x3 H 600 V 2 Display Mode TN Type Normally White SWV Film 3 Active area mm 408 H 306 V 4 Screen size inch 20 1 Diagonal 5 Pixel pitch mm 0 51 H 0 51 V 6 Color configuration R G B Vertical stripe 7 Display Color 16 2M 6 bit FRC 8 Typical white Luminance 450 nit typ 9 Contrast ratio 700 1 10 Color Gamut 72 typ of N...

Page 13: ...pecification Item Symbol Condition Min Typ Max Unit Remark Response time Rising time Falling time Tr Tf θ 0 11 5 15 10 ms Contrast ratio center of screen CR θ 0 600 700 Viewing angle Top Bottom Left Right CR 10 65 55 65 65 80 60 80 80 Deg Brightness center of screen YL θ 0 350 450 nit Wx 0 249 0 279 0 309 Wy 0 260 0 290 0 320 Rx 0 607 0 637 0 667 Ry 0 311 0 341 0 371 Gx 0 268 0 298 0 328 Gy 0 568 ...

Page 14: ... the OSD is on functions the same as the Right arrow Volume down When the OSD is on functions the same as the Left arrow 2 Input key When the OSD is on press this button to confirm selection 3 Menu key Turns the OSD menu ON and OFF 4 Channel up When the OSD is on functions the same as the Up arrow Channel down When the OSD is on functions the same as the Down arrow 1 2 3 4 5 ...

Page 15: ...Rear panel view 1 S Video 2 SCART 3 CVBS 4 AV Audio L R 5 Analog antenna 6 PC Audio in 7 VGA in 8 AC in 9 Earphone AC IN VGA PC AUDIO IN ANALOG TUNER AUDIO VIDEO S VIDEO SCART 9 8 7 6 5 4 3 2 1 ...

Page 16: ...endent on input source type 11 MENU Press to open or close the Menu 12 MPX Press to select the sound input displayed in the top right hand corner mono stereo bilingual 13 Directional keys OK VOL up down CH up down 11 4 10 1 INDEX Press to go to the index page 2 SUBTITLE Press to view subtitles on the screen 3 REVEAL Press to reveal hidden telext information 4 TELETEXT Press to switch from TV AV to...

Page 17: ...MENU Press the MENU button on the remote control or the MENU button on the control panel 2 Select your desired menu by using the up and down directional keys to switch between the five menus 3 Use the directional keys to interact with the menu The up down directions will scroll through the menu options while left right will adjust the different settings for example in the Picture menu settings suc...

Page 18: ...ht keys to adjust the sliding scale Press OK to save 4 The Audio menu can also be used to adjust the treble balance sound effects and other important sound related settings Adjusting the channel management 1 Press the Menu key to bring up the OSD 2 Using the directional keys select Channel management from the OSD 3 Use the directional keys to navigate the menus 4 The Channel management menu can be...

Page 19: ...V Setting a personal PIN 1 MENU Press the MENU key on the remote control to bring up the OSD 2 Use the directional keys to navigate to the Settings menu Then select Set PIN see note 3 MENU Enter a four digit password Type it again and press OK to reconfirm 4 MENU Press MENU to exit To enable this feature The default PIN for this TV is 0000 First enter 0000 when you want to change the PIN If you fo...

Page 20: ... to the Channel management menu Then select Lock This Channel 4 MENU Enter your PIN Type it again and press OK to reconfirm see page 12 Locking your TV 1 MENU Press the MENU key on the remote control to bring up the OSD 2 Use the directional keys to navigate to the Settings menu Then select Lock TV 3 MENU Enter your PIN Type it again and press OK to reconfirm see page 12 note ...

Page 21: ...igate and select Channel Management 3 MENU Highlight Auto Scan Then select Start and press OK to begin 4 MENU MENU Select OK and press MENU to exit Re scan for channels The first time you completed the setup wizard all available channels were listed If you need to re scan for new channels please follow the steps below MENU ...

Page 22: ...ere is no video input signal present When there is no video input signals this monitor following a time out period will automatically switch to an OFF mode This reduces the monitor s internal power supply consumption After the video input signal is restored full power is restored and the display is automatically redrawn The appearance is similar to a Screen Saver feature except the display is comp...

Page 23: ...rocedure 1 Move the monitor our from carton 2 Put the monitor on desk face down 3 Remove the midea cover SCREW TV BOX 4 Loose the screws remove the stand 5 Remove the bezel cover 6 TAKE OFF THE CABLE TAPE 23 Machine Disassembly Chapter 4 ...

Page 24: ... shielding screw shielding 8 Loose the PCB A screw LVDS cable 9 Loose the shielding tape LVDS cable 10 Loose the Button B earphone b speaker screw 11 Remove the Button B earphone b speaker 12 Loose the bezel screw ...

Page 25: ...13 Remove the bezel 14 Remove the bkt l r screw bkt l r ...

Page 26: ... method 1 Sticker on LCD protection film 2 Put the monitor into the PE or EPE bags 3 Put on the end cap left right 4 Put the monitor into carton 5 Put all accessories into carton 6 Seal the monitor Face up Power cable Users manual ...

Page 27: ...LCD TV AT2002 series handling Notice Correct Method Incorrect method Correct Method Incorrect method Correct Method Incorrect method ...

Page 28: ...Correct Method Incorrect method Correct Method Incorrect method ...

Page 29: ...in1 12V pin5 5V Correct Check FB14 3 3V FB27 1 8V correct No Change I O board No Yes Change M B Change M B Yes Change Power board Separate MB power board Check CN201 pin1 12V pin5 5V Correct Separate MB I O board Check CN201 pin1 12V pin5 5V Correct Yes No NO POWER ...

Page 30: ...2 No picture No backlight No picture No backlight Change power board No No Yes Check Power B CN201 Pin8 3 3V correct Change power board Check LCD panel ...

Page 31: ...3 No Characters Missing Color Check TTL FFC cable No YES Yes Check CN6 Pin6 9 5V correct Change TTL FFC cable Check LCD panel Change M B No No Characters Missing Color ...

Page 32: ...4 VGA mode Always show NO SIGNE Check input CN2 Pin13 H sync pin14 V sync correct No YES Yes Check VGA cable correct Change M B Check PC Change VGA cable VGA always show No Signal No ...

Page 33: ...5 Video mode always show NO SIGNEL Check I O board correct No YES Yes Check Video cable correct Change M B Change I O board Change Video cable Video mode always show No SignalVideo mode always show No ...

Page 34: ... description Following is the procedure to do white balance adjust I Press Number key Power key manual will into the factory mode and press Menu key the OSD will show menu and a word F at LEFT top of Menu 1 In the factory mode select COLOR TEMP may be select the difference color temp 2 Select SCALER Adjustment RG GG BG Æ R G B Gain adjust RB GB BB Æ R G B Bias adjust Notes the R G B gain use 9 bit...

Page 35: ...how x 279 15 y 290 15 Y 350 7 cd m2 5 Adjust the Color user Mode RED on OSD window until chroma 7120 indicator reached the value R 100 6 Adjust the Color user Mode GREEN on OSD window until chroma 7120 indicator reached the value G 100 7 Adjust the Color user Mode BLUE on OSD window until chroma 7120 indicator reached the value B 100 8 Repeat above procedure item 5 6 7 until chroma 7120 RGB value ...

Page 36: ...hatever reasons a part number change is made it will not be noted in the printed Service Guide For ACER AUTHORIZED SERVICE PROVIDERS your Acer office may have a DIFFERENT part number code from those given in the FRU list of this printed Service Guide You MUST use the local FRU list provided by your regional Acer office to order FRU parts for repair and service of customer machines NOTE To scrap or...

Page 37: ...Exploded Diagram Model AT2002 ...

Page 38: ...RD FIRMWARE CTRL POWER BOARD POWER BOARD BUTTON BOARD KEY CTRL FIRMWARE EARPHONE BOARD EARPHONE CTRL FIRMWARE LCD PANEL 20 1 A201SN02 V5 20 1 A201SN02 V5 CASE COVER ASSEMBLY FRONT BEZEL FRONT BEZEL WITH BEZEL PLATE BOARD 39 Chapter 4 Parts ...

Page 39: ...CATEGORY PARTNAME DESCRIPTION BACK COVER BACK COVER BASE BASE TO SUPPORT THE STAND 40 Chapter 4 ...

Page 40: ...PCB Layout Chapter 7 40 ...

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Page 70: ... SV4 3 SV1 3 SV2 3 SV3 3 LBADC_IN3 3 TUNER_MONO 6 5V_SCL 6 SCART 1 OUT_L 6 TUNER_SIF 6 DET_SCART COMP 3 5V_SDA 6 SCART 1 OUT_R 6 SCART 1 OUT_CVBS 3 Title Size Document Number Rev Date Sheet o f HUDSON PLATFORM I O Interface 1 8 Monday June 26 2006 B3C SCHEMATIC1 B R5 R9 R11 FOR PAL ONLY AT2002 20 TV C6 0 1uF 6 R16 0R 6 R2 20 6 1 2 C4 0 1uF 6 R10 20 6 R7 20R 1 R19 47K 6 R12 20 6 R20 47K 6 R17 0R 6 ...

Page 71: ...4 47K 6 C23 0 1uF 6 D1 NC BAV99L 2 3 1 R32 10k 6 R23 20R 6 1 2 C12 NC 10pF 6 R36 NC 0R 6 R26 75R 6F BAT54 D5 1 2 3 R41 33K 6 CN2 D SUB 15P 1 6 2 7 3 8 4 9 5 11 12 13 14 15 10 16 17 U1B 74LCX14MX 3 4 14 7 C26 NC 22P 6 C19 NC 47P R45 100R 6 U1C 74LCX14MX 5 6 14 7 R42 47R 6 R37 10K 6 R27 75R 6F ZD1 NC 9V 2 1 ZD6 NC 9V 2 1 FB2 BEAD 6 ZD5 NC 9V 2 1 C24 1000pF 6 C27 NC 22P 6 R25 75R 6F FB1 BEAD 6 C16 NC...

Page 72: ... 1 IN FB EIAJ SENSE CHIP SELECT FOR FLASH SRAM FOR ROM ADDRESS 16 bit INPUT FOR ROM ADDRESS 16 bit INPUT FOR ROM ADDRESS 16 bit INPUT FOR ROM ADDRESS 16 bit INPUT FOR ROM ADDRESS 16 bit INPUT FOR ROM ADDRESS 16 bit INPUT FOR ROM ADDRESS 16 bit INPUT FOR ROM ADDRESS 16 bit INPUT LBADC S LBADC_IN1 KEYBOARD1 KEYBOARD2 SCART 1 IN_PIN8 EIAJ1 FOR LDR OPTION LBADC_IN2 LBADC_IN3 LBADC_IN4 LBADC_IN5 LBADC_...

Page 73: ...K 3 CSRAM 3 Title Size Document Number Rev Date Sheet of HUDSON PLATFORM FLASH MEMORY I F 4 8 Monday June 26 2006 B3C SCHEMATIC1 CSRAM ADDR RANGES FROM 18000H TO 7FFFFH APP 412K BYTE SERIAL FLASH 512K SOIC 8 OPTIONAL Optional Socket for a X8 Flash 64 128 256 512K and PROMJETmemory Emulator AT2002 20 TV C101 0 1uF 6 L2 NC Bead_121_4A 8 U1F 74LCX14MX 13 12 14 7 C100 0 1uF 6 C99 22uF 25V R150 NC 10K ...

Page 74: ... 3 TXA3 3 TXA1 3 Title Size Document Number Rev Date Sheet o f HUDSON PLATFORM PANEL LVDS TTL OUTPUT 5 8 Monday June 26 2006 B3C SCHEMATIC1 TTL SIGNAL OUTPUT PORT BKLT_EN PANEL POWER Control LVDS SIGNAL OUTPUT PORT NEED DNX SUB PCB LVDS OUTPUT For CPT 20 inch AT2002 20 TV C139 NC SC1uF 6 C125 22pF 6 C113 22pF 6 C105 22pF 6 R163 47K 6 R161 10K 6 Q7 CH3904 2 1 3 C134 0 1uF 6 C104 0 1uF 6 R154 0R 6 1...

Page 75: ...IN 47 SC1_IN_L 44 SC1_IN_R 45 ASG1 43 SC2_IN_L 41 SC2_IN_R 42 ASG2 40 SC3_IN_L 38 SC3_IN_R 39 ASG3 37 SC4_IN_R 36 STANDBYQ 63 ADR_SEL 62 I2C_DAT 2 I2C_SCL 1 ADR_WS 8 ADR_CLK 9 ADR_DAT 7 I2S_WS 4 I2S_CL 3 I2S_DA_IN1 6 I2S_DA_IN2 12 I2S_DA_OUT 5 RESETQ 16 ANA_IN1 50 ANA_IN1 51 ANA_IN2 52 VREFTOP 46 AGNDC 34 XTAL_IN 54 XTAL_OUT 55 CAPL_M 32 CAPL_A 30 DACM_L 21 DACM_R 20 DACM_SUB 23 DACA_L 18 DACA_R 1...

Page 76: ... 29 OUTPR 8 OUTMR 14 PVDDPL 36 PVDDML 28 PVSSL 30 VOL0 26 PVDDREG 40 VSSBGR 3 REFA 41 AVSS 2 DVDD 22 DVSS 18 PVDDPR 7 PVDDMR 15 PVSSR 9 PROTN 16 SLEEPN 17 MUTEN 6 THERMAL 43 PVSSR 10 PVSSR 11 PVSSR 12 PVSSR 13 PVSSL 31 PVSSL 32 PVSSL 33 PVSSL 34 THERMAL 44 THERMAL 45 THERMAL 46 THERMAL 47 THERMAL 48 THERMAL 49 THERMAL 50 THERMAL 51 THERMAL 52 THERMAL 58 THERMAL 57 THERMAL 56 THERMAL 55 THERMAL 54 ...

Page 77: ...84 TO252 ADJ GND 1 VOUT 2 VIN 3 C232 NC 100uF 25V FB25 Bead_121_4A 8 C243 1uF 6 FB20 Bead_121_4A 8 L24 NC Bead_121_4A 8 C235 100uF 25V C248 10UF 10V 1 H2 MTH276D126 2 3 4 5 6 7 8 9 Q13 SI9435 2 3 4 5 7 6 8 1 L22 Bead_121_4A 8 C228 0 1uF 6 R231 NC 0R 6 R224 4 7K 6 FB12 Bead_121_4A 8 C237 0 1uF 6 C238 22uF 25V C223 100uF 25V C217 330uF 16V C231 NC 100uF 25V 1 H1 MTH276D126 2 3 4 5 6 7 8 9 L27 Bead_1...

Page 78: ...2 SCART 1 OUT_R 4 Pr_SCART IN_R C 4 Pb_SCART IN_B 4 CVBS 2 SVIDEO_C 2 TV_CVBS_1 3 SCART 1 IN_FB 4 SCART 1 IN_PIN8 4 Y_SCART IN_G 4 SVIDEO_Y 2 SCART 1 IN_CVBS 4 SCART 1 OUT_CVBS 3 Title Size Document Number Rev Date Sheet o f HUDSON PLATFORM B2A Title A 1 4 Wednesday June 28 2006 AT2002 I O 1 H5 MTH276D126 2 3 4 5 6 7 8 9 C40 0 1uF 6 1 H2 MTH276D126 2 3 4 5 6 7 8 9 R1 4 7k 6 1 H6 MTH276D126 2 3 4 5...

Page 79: ...tle Size Document Number Rev Date Sheet o f HUDSON PLATFORM B2A Title B 2 4 Wednesday June 28 2006 AT2002 I O R4 75R 6F C4 220pF 6 D3 BAV99L 2 3 1 D1 BAV99L 2 3 1 C12 22pF 6 CN2 RCA 3P 3 6 9 1 4 7 2 5 8 C2 22pF 6 FB4 BEAD 6 C6 220pF 6 C11 22pF 6 C1 0 1uF 6 C8 0 1uF 6 DIN4 CN3 4 3 2 1 5 6 FB5 BEAD 6 FB3 BEAD 6 R2 75R 6F C7 220pF 6 FB1 BEAD 6 C10 22pF 6 D2 BAV99L 2 3 1 C5 220pF 6 FB2 BEAD 6 R3 75R 6...

Page 80: ...0mA R26 NC 1K 6 C15 0 1uF 6 C35 NC 220pF 6 R27 NC 75R 6F U2A AD8072 3 1 8 4 2 C36 NC 47uF 16V R14 75R 6F C16 330uF 16V 1 2 C38 0 1uF 6 R5 100R 6 L2 10uH R15 NC 1K1 R11 75R 6F R25 NC 75R 6F Q1 NC BC847B 2 1 3 U2B AD8072 5 7 8 4 6 R9 0R 6 L1 10uH R8 22 6 C18 NC 68n U1 FQ1216ME NC VTout 2 Vb 5V 3 SCL 4 SDA 5 AS 6 2ndIFout 11 CVBSout 12 VIF 5V 13 AFout 14 AF R 9 TH1 17 TH2 18 TH3 15 TH4 16 NC AGC 1 AF...

Page 81: ... 1 Pb_SCART IN_B 1 SCART 1 IN_CVBS 1 SCART 1 OUT 3 Title Size Document Number Rev Date Sheet o f HUDSON PLATFORM B2A Title B 4 4 Wednesday June 28 2006 SCART SIGNAL INPUT PORT D6 BAV99L 2 3 1 C22 22pF 6 C26 220pF 6 C33 22pF 6 C20 22pF 6 C24 0 1uF 6 C34 22pF 6 C25 220pF 6 D7 BAV99L 2 3 1 R17 0R 1 R21 75R 6F FB7 BEAD 6 R16 NC 75R 6F C31 22pF 6 D4 BAV99L 2 3 1 C23 22pF 6 C30 22pF 6 D8 BAV99L 2 3 1 C1...

Page 82: ...E E 5 5 4 4 3 3 2 2 1 1 Title Size Document Number R ev Date Sheet o f BUTTON B2A CONTENT 1 2 Wednesday June 28 2006 0990 CONTENTS I O INTERFACE CONTENT 1 SHEET SCHEMATIC 2 HUDSON BUTTON BOARD PROJECT AT2002_Earphone B ...

Page 83: ... LINE_R_IN LINE_L_IN GND_AUDIO GND_AUDIO Title Size Document Number R ev Date Sheet o f BUTTON BOARD B2A EARPHONE 2 2 Wednesday June 28 2006 ear AUDIO CN2 5102 54R 2 3 4 5 1 CN1 4501 04 05P R CONN5P 2_0 RH 1 2 3 4 5 PROJECT AT2002_Earphone B ...

Page 84: ... E E 5 5 4 4 3 3 2 2 1 1 Title Size Document Number R ev Date Sheet o f BUTTON C3A CONTENT 1 2 Wednesday June 28 2006 0990 CONTENTS I O INTERFACE CONTENT 1 SHEET SCHEMATIC 2 HUDSON BUTTON BOARD PROJECT AT2002 BUTTOM B ...

Page 85: ...ED1 CN1 H1 H2 SW6 VOL_DOWN VOL_UP INPUT MENU CH_DOWN CH_UP POWER SEN1 R3 560 8 R1 220 8 R4 1 2K 8 SEN1 1 2 3 SW7 POWER 1 3 2 4 5 PROJECT AT2002 BUTTOM B SW5 VOL_UP 1 3 2 4 5 R5 3 3K 8 SW3 CH_DOWN 1 3 2 4 5 SW1 MENU 1 3 2 4 5 1 H2 MTH276D126 SW6 INPUT 1 3 2 4 5 1 H1 MTH276D126 LED1 EL 209 2EGW A1 C A2 CN1 4500 07 1 2 3 4 5 6 7 R2 330 8 SW4 VOL_DOWN 1 3 2 4 5 SW2 CH_UP 1 3 2 4 5 ...

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