Acer AT4250-DTV Service Manual Download

Page: 72 / 89

Chapter 3

LCD No Backlight

Inverter power

Cable had Plug in

Change Inverter

Power Cable

LCD Panel Backlight

Bright ?

Replacement Power/B

Replacement LCD

Panel Inverter /B

END

LCD Panel Backlight

Bright ?

LCD Panel Backlight

Bight

Replacement Main/B

Inverter power

Cable had Plug in

Change Inverter

Power Cable

LCD Panel Backlight

Bright ?

Replacement Power/B

Replacement LCD

Panel Inverter /B

END

LCD Panel Backlight

Bright ?

LCD Panel Backlight

Bight

Replacement Main/B

Summary of Contents for AT4250-DTV

Page 1: ...Acer AT4250DTV LCD TV Service Guide PRINTED IN TAIWAN Service guide files and updates are available on the ACER CSD web For more information please refer to http csd acer com tw ...

Page 2: ...II Revision History Please refer to the table below for the updates of LCD TV AT4250DTV service guide Date Chapter Updates December 11 2006 initial release ...

Page 3: ...ublication may be reproduced transmitted transcribed stored in a retrieval system or translated into any language or computer language in any form or by any means electronic mechanical magnetic optical chemical manual or otherwise without the prior written permission of Acer Incorporated ...

Page 4: ...y Acer Incorporated software described in this manual is sold or licensed as is Should the programs prove defective following their purchase the buyer and not Acer Incorporated its distributor or its dealer assumes the entire cost of all necessary servicing repair and any incidental or consequential damages resulting from any defect in the software Acer is a registered trademark of Acer Incorporat...

Page 5: ... bits and pieces of additional information related to the current topic WARNING Alerts you to any damage that might result from doing or not doing specific actions CAUTION Gives precautionary measures to avoid possible hardware or software problems IMPORTANT Reminds you to do specific actions relevant to the accomplishment of procedures ...

Page 6: ...ill NOT be covered in this generic service guide In such cases please contact your regional offices or the responsible personnel channel to provide you with further technical details 2 Please note WHEN ORDERING FRU PARTS you should check the most up to date information available on your regional web or channel For whatever reason if a part number change is made it will not be noted in the printed ...

Page 7: ... connector DIN45325 IEC169 2 terminal for TV CATV input DIN45325 IEC169 2 terminal for DVB T input Video Functions PAL NTSC SECAM video format support 480i 576i 480p 576p 1080i and 720p 1080p format support Built in Teletext functions Built in dynamic adaptive smoothing filter Built in dynamic temporal frame filter noise reduction Built in dynamic motion and edge adaptive de interlacing Film mode ...

Page 8: ... Max Remote Control Multi function remote control Speaker Internal speaker 10W x 2 stereo adjustable volume Others On screen display adjustment function ISP In System Programming function available for revising driver easily ...

Page 9: ...Chapter 1 3 System Block and Wiring Diagram ...

Page 10: ...4 Chapter 1 LCD Main Board Block Diagram ...

Page 11: ...SD 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 5 Volume up When 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 6 Input key When the OSD is on press this button to confirm selection ...

Page 12: ... Panel View Note For AV3 Composite and component inputs share the same audio ports Item Item 1 Power switch 2 AC in 3 HDMI 4 VGA in 5 PC Audio in 6 AV3 Audio L R CVBS COMPONENT 7 SCART 8 Analog antenna Digital antenna ...

Page 13: ...ontrol General Keys Teletext Item Description General Keys 1 POWER Press to turn your TV on off 2 DISPLAY Press once to display input channel information dependent on input source type Press twice to show more information ...

Page 14: ...xt mode Press to overlay teletext page on the TV image 11 Directional keys OK VOL up down CH up down N A 12 WIDE Press to toggle scaling mode between 4 3 16 9 Panorama and Letterbox 1 2 3 modes 13 MPX Press to select the sound input displayed on the top right hand side mono stereo bilingual 14 VOL Press to increase or decrease the volume 15 CH up down Press to sequentially select the TV channel Te...

Page 15: ... Cord 1 Connect the AC cord into the AC input on the back of the set 2 Connect the male plug to the wall outlet as shown Connecting an Antenna Cable Connect the antenna cable to the appropriate antenna terminal on the back of the TV set as shown below ...

Page 16: ...ct time zone using the remote control d Enable or disable daylight saving time e Ensure that your co axial cables are connected correctly before proceeding f Scan for digital channels g Scan for analog channels h Setup is now complete You are ready to begin watching TV You can also adjust these settings using the front control panel Please see Front Panel View 3 Changing channels a Press 0 9 on th...

Page 17: ...ipment Connect your DVD player VCR or audio video equipment using the SCART port located at the rear of your LCD TV as shown below Note 1 Acer recommends the following priority for connection types HDMI COMPONENT SCART Composite 2 For AV3 Composite and component inputs share the same audio ports ...

Page 18: ...2 Chapter 1 Note SCART out only works with analog broadcasts Connecting a Camera Camcorder or Video Game Connect your camera or camcorder to the video audio ports on the rear of the TV set as shown below ...

Page 19: ...0Hz refresh rate Selecting the Input Source Once you have connected your antenna or external equipment to the TV you need to select the correct input source Press the corresponding button on the remote control to select the correct input source Item Input Button Guide 1 TV key Toggle Analog TV ATV and Digital TV DTV between input sources 2 AV key Toggle AV3 AV4 HDMI1 and HDMI2 between input source...

Page 20: ...14 Chapter 1 4 PC key Toggle VGA between input sources Item Input Button Guide ...

Page 21: ...OSD with the Remote Control Note You can also interact with these menus using the front panel controls Please see Front Panel View for details Icon or Display Instruction 1 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 wi...

Page 22: ... key to bring up the OSD 2 Using the directional keys select Audio from the onscreen display Then navigate to the feature you wish to adjust 3 Use the left or right 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 Adjust the Channel Management 1 Press the MENU key to bring up th...

Page 23: ...may not be available with an analog signal and vice versa Adjusting the Settings 1 Press the MENU key to bring up the OSD 2 Using the directional keys select Settings from the OSD Then navigate to the feature you wish to adjust 3 The Settings menu can be used to adjust the menu language and other important settings ...

Page 24: ...e default PIN for this TV is 0000 First enter 0000 when you want to change the PIN If you forget your PIN please enter 6163 to reset Setting a Personal PIN 1 Press the MENU button on the remote control or the MENU button on the control panel 2 Use the directional keys to navigate to the Settings menu Then select Set PIN 3 Enter a four digit password Type it again and press OK to confirm 4 Press ME...

Page 25: ...r TV 1 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 Enter your PIN Type it again and press OK to reconfirm 4 Press MENU to exit ...

Page 26: ...s Please follow the steps below Reordering for Channels 1 Press the MENU key on the remote control to bring up the OSD 2 Use the directional keys to navigate and select Channel Management 3 Highlight Reorder Then select the channel you wish to reorder and press OK to confirm Move to the right channel number and press OK to reconfirm 4 Press MENU to exit ...

Page 27: ...163 to reset Setting or Changing TV Ratings Settings 1 Navigate to the channel you wish to manage and make sure that the channel is unlocked 2 Press the MENU key then select Channel Management from the OSD 3 Navigate down to TV rating system and then select the categories you wish to block 4 You will need to enter your PIN before you make any adjustments to the settings Press OK to set the age rat...

Page 28: ...ted If you need to rescan for new channels Please follow the steps below Scanning for Channels 1 Press the MENU key on the remote control to bring up the OSD 2 Use the directional keys to navigate and select Channel Management 3 Highlight Auto Scan Then select Start and press OK to begin 4 5 Press MENU to exit ...

Page 29: ...re 1 Press the CH LIST key on the remote control This will bring up the channel list menu 2 The current channel will be highlighted 3 Use the directional keys to navigate the list and select the channel you wish to watch Press OK to select your desired channel and exit the channel list 4 Press OK to select your desired channel and exit the channel list ...

Page 30: ...ogramme introduction area A short description of the highlighted programme is located at the top center of the EPG page lengthy descriptions will be cut short using to indicate extra text Highlight the introduction and press OK to view the whole introduction section on a separate page b Preview area On the top right hand side of the EPG screen is the preview area The preview area will show live TV...

Page 31: ...r the blue key to display the programme in the preview and introduction areas d Type The type area indicates the genre that has been selected The selection of available genres depends on your service provider e Indication This area of the EPG indicates which shortcut keys can be used while on an EPG screen 1 Press the EPG key on the remote control 2 Use the directional keys to navigate around the ...

Page 32: ... Press the yellow key to go to the My List page My List The My List page contains a list of programmes that you have selected to watch Blue Press the blue key to view details of the selected item View detail The View detail screen allows you to view programme information like time date and channel OK Press the OK key to view details of the selected item Remind Feature While in the EPG pages pressi...

Page 33: ...rilling experience with deep rich bass from any stereo sound source Your audio sounds fuller richer and wider Based on the elements of SRS 3D technology WOW restores the spatial cues and ambient information that are lost during standard stereo playback To enable SRS WOW press the SRS key on the remote control For 4 3 4 3 standard pictures a side bar appears on each side In 16 9 16 9 mode the whole...

Page 34: ...M Sound system B G D K I L multi European Stereo system NICAM A2 Subtitle Teletext 1 5 Analog TV tuner quantity 1 Digital TV system Digital TV standard DVB T TV tuner quantity 1 Frequency 7 8MHz Terminal Analog tuner in Yes Digital tuner in Yes AV1 SCART S Video FB Fast Blanking CVBS Audio R L AV2 SCART S Video FB Fast Blanking CVBS Audio R L AV3 COMPONENT YPbPr YCbCr Audio R L AV3 CVBS CVBS Audio...

Page 35: ...s Input signal 2 channel LVDS Optimum viewing direction 6 o clock Power consumption 182W typical Contrast ratio 1200 1 typical Response time 6 5 ms typical Center luminance of white 500 typical CVBS and Y C PAL 4 43M 50Hz B G D K H I and PAL 4 43M 60Hz SECAM D K NTSC 3 58M NTSC 4 43M Japan 50Hz Analog TV Systems PAL and SECAM system receivable Full frequency range from channel E2 48 25MHz to chann...

Page 36: ...Input Signal Type Analog Polarity Positive Level Y 1 Vp p with Sync C 0 286 Vp p Impedance 75 5 Interface Euro SCART S Din RGB Input Signal Type Analog Polarity Positive Level 0 7 Vp p Impedance 75 5 Interface Euro SCART YUV YCbCr or YPbPr Input Signal Type Analog Polarity Positive Level Y 1 Vp p with Sync U V 0 7 Vp p Impedance 75 5 Interface Euro SCART RCA Jack Audio input Level 500 mVrms Type S...

Page 37: ...e returned for replacement This fuse is selected to handle inrush current for all combinations of line voltage and frequency Hot plug and power on off sequence Once hot plug occurs at the very first time the initial current is limited at 2 3 amps or lower when power off Current will stay below 100 m amps while power on then ramp up to full power about 2 3 amps at AC 120V within five seconds when p...

Page 38: ... duty cycle 25 3 Vsync f 10Hz 4 duty cycle 25 The power consumption is valid over the specified voltage and frequency range Power consumption is measured from AC source There are no power saving modes for TV SCART1 2 HDMI1 2 AV3 and AV4 inputs Preset Mode Pixel Format Horizontal Frequency KHz Horizontal Polarity Vertical Frequency Hz Vertical Polarity Standard 1 720 400 31 47 70 VGA 2 640 480 31 4...

Page 39: ...o for purity white point mis convergence luminance measurements and white uniformity measurement Operating temperature Operating humidity 0o C to 35o C 10 to 90 non condensing Storage and Shipping Storage temperature Shipping temperature Storage humidity Shipping temperature 20oC to 60oC 20o C to 60o C 10 to 90 non condensing 10 to 90 non condensing Altitude Operating altitude Shipping altitude St...

Page 40: ...kaged display shall be capable of passing drop test as specified in following specification without any measurable degradation in performance or detectable mechanical or cosmetic damage Filter 330 Hz Dropping way 1 corner 3 edges 6 flats Dropping height see the table below Weight kg Corner edge F R Btm cm L R Up side cm 0 9 76 76 9 1 61 61 18 27 46 46 27 45 31 20 45 100 25 15 ...

Page 41: ... handle the module during operation or just after powered off you must take proper precautions against electric shock and must not touch the drive circuit portion and metallic part of module within 10 minutes The capacitors in the drive circuit portion remain temporarily charged even after the unit is powered off If the residual voltage is strong enough it could result in electric shock Thus we st...

Page 42: ...AT4250 CHASSIS ASSY 18 2 NO OPERATION INSTRUCTION 1 STAND MACHINE 2 INSPECTION SCREW IF LOOSE 3 C INSPECTION FRONT COVER AND BACK COVER GAP 4 INSPECTION MACHINE OUT SIDE 5 STICK S N ON THE BACK COVER 2 ...

Page 43: ...AT4250 CHASSIS ASSY18 1 NO OPERATION INSTRUCTION 1 STAND MACHINE 2 INSPECTION PANEL AND BEZEL GAP 3 INSPECTION MACHINE OUTSIDE 2 ...

Page 44: ...AT4250 CHASSIS ASSY 17 NO OPERATION INSTRUCTION 1 GET STAND BASE ASSY IN THE 2 GET STAND COVER ASSY IN THE 3 LOCK SCREW M4 22 TO FASTEN IT 4 LOCK SCREW T4 12 2PCS TO FASTEN STAND COVER 3 4 ...

Page 45: ...AT4250 CHASSIS ASSY 16 2 NO OPERATION INSTRUCTION 1 LOCK SCREW T4 12 TO FASTEN BACK COVER 1 ...

Page 46: ...AT4250 CHASSIS ASSY 16 1 NO OPERATION INSTRUCTION 1 LOCK SCREW T4 12 TO FASTEN BACK COVER 2 LCOK SCREW M3 6 2PCS TO FASTEN BACK COVER 2 ...

Page 47: ...AT4250 CHASSIS ASSY 15 NO OPERATION INSTRUCTION 1 GET BACK COVER INSPECT COSMETIC 2 PUT THE OK BACK COVER ON THE BEZEL 3 STICK POWER LABLE AND TUNER LABEL 4 2 PASTE POWER LABEL 贴 TUNER LABEL ...

Page 48: ...AT4250 CHASSIS ASSY 14 NO OPERATION INSTRUCTION 1 GET STAND BKT ASSEMBLE MACHINE 2 LCOK SCREW M4 18 6 TO FASTEN STAND BKT 3 TDYI SPEAKER CABLE WITH ACETIC TAPE 2 3 ...

Page 49: ...TV MODULE ASSY 9 NO OPERATION INSTRUCTION 1 FASTEN AV3 FRAME AV3 B CONTACT PAD ON FRONT COVER 2 FASTEN 2 PCS T3 8 ON AV3 B AND GND WIRE OF FRONT COVER 3 INSERT AV4 CABLE ON AV3 B 4 PASTE CONTACT PAD ON PANEL 2 ...

Page 50: ...AT4250 CHASSIS ASSY 13 NO OPERATION INSTRUCTION 1 FASTEN 2 PCS SCREW M3 6 ON HDMI CONNECT 2 FASTEN 6 PCS SCREW T3 8 ON IO B CONNECT 3 FASTEN 2 PCS NUTS ON VGA CONNECT 3 1 2PCS 3 ...

Page 51: ...AT4250 CHASSIS ASSY 12 NO OPERATION INSTRUCTION 1 PUT SPEAKER CABLE IN BEZEL 2 LOCK SCREW T3 12 8 TO FASTEN LEFT AND RIGHT SPEAKER 3 INSERT L R SPEAKER CABLE 2 ...

Page 52: ...AT4250 CHASSIS ASSY 11 2 NO OPERATION INSTRUCTION 1 INSERT CONNECT 2 LOCK SCREW M3 6 6 TO FASTEN SHIELDING 3 STICK GASKET TAPE 1 ON WALL MOUNT 4 2 3 ...

Page 53: ...AT4250 CHASSIS ASSY 11 1 NO OPERATION INSTRUCTION 1 GET SHIELDING ASSEMBLING IN CHASSIS 2 LOCK SCREW M3 6 8 TO FASTEN SHIELDING 2 ...

Page 54: ...AT4250 CHASSIS ASSY 10 NO OPERATION INSTRUCTION 1 CHECK THETHER ALL THE CABLES BE INSERT TO BOTTOM 1 ...

Page 55: ...AT4250 CHASSIS ASSY 9 2 NO OPERATION INSTRUCTION 1 LOCK CREW M3 6 5 TO FASTEN POWER B 2 GET PWR AUDIO TO CABLE INSERT POWER B AND M B 1 ...

Page 56: ...AT4250 CHASSIS ASSY 9 1 NO OPERATION INSTRUCTION 1 LOCK SCREW T3 6 3 TO FASTEN BUTTON B 2 FANSTEN SCREW M3 6 1PCS ON POWER B 3 INSERT INV CABLE IN RIGHT INVERTER AND TIDY IN THE CLAMP ＮＯ 2 1 GND wire ...

Page 57: ...2 NO OPERATION INSTRUCTION 1 INSERT INV CABLE IN M B AND TIDY IN THE CLAMP 2 INSERT LVDS CABLE IN M B 3 INSERT SPEAKER CABLE IN M B 4 GET P MB DT CABLE INSERT POWER B AND M B 5 GET INV PANEL CABLE INSERT POWER B 1 4 5 ...

Page 58: ...AT4250 CHASSIS ASSY 8 1 NO OPERATION INSTRUCTION 1 GET POWER B SCAN SHOPFLOOR 2 LOCK SCREW M4 6 8 TO FASTEN BOTTOM SIDE OF POWER B 3 INSERT INV CABLE IN POWER B 2 3 ...

Page 59: ...AT4250 CHASSIS ASSY 7 NO OPERATION INSTRUCTION 1 FETCH TUNER AND ASSY ON CHASSIS 2 FASTEN 3PCS SCREW M3 6 ON TUNER 3 3 paste 2 PCS 3 ...

Page 60: ... ASSY 7 NO OPERATION INSTRUCTION 1 FETCH CPU B AND SCAN SHOPFLOOR 2 FETCH NUT1 29 4 2PCS ON IO B 3 FETCH NUT2 37 5 1PCS ON TUNER B 4 ASSY CPU B AND DTV SIGNAL CABLE ON CHASSIS 5 FASTEN SCRER NUT 6 5 ON CPU B 2 4 3 5 ...

Page 61: ...AT4250 TV MODULE ASSY 9 NO OPERATION INSTRUCTION 1 FASTEN 5PCS SCREW M3 6 ON M B 2 FETCH D TUNER BKT AND ASSY TO IO B FASTEN 2PCS M3 6 FIXED 1 2 ...

Page 62: ...AT4250 CHASSIS ASSY 6 NO OPERATION INSTRUCTION 1 GET M B AND IO B SCAN SHOPFLOOR 2 ASSEMBLE TWO THEN PUT ON CHASSIS 3 Insert DTV singal cable on M B 4 3 ...

Page 63: ...SIS ASSY 5 NO OPERATION INSTRUCTION 1 GET CLAMP AND PUT IT ON LCD BEZEL 2 GET 1PCS GROUND CABLE M4 12 7 TO FASTEN PANEL ON GROUND CABLE 3 GET 2PCS M3 6 TO FASTEN CHASSIS 3 1 2 1PCSGND wire MB BTN IR CABLEGND wire ...

Page 64: ...AT4250 CHASSIS ASSY 4 NO OPERATION INSTRUCTION 1 GET IR B BUTTON B INSERT IT IN BUTTON CBALE 2 GET SCREW M3 6 1PCS TO FASTEN GROUND CABLE WIRE CLIP 3 GET SCREW T3 6 2PCS TO FASTEN IR B 2 3 ...

Page 65: ... IT IN FRONT COVER 2 LOCK SCREW T4 12 4 TO FASTEN PANEL AND FRONT COVER TOP SIDE 3 GET CLAMP AUO R L 4PCS ON BEZEL AND M4 12 PCS FASTEN 4 GET SCREW M3 6 3PCS TO FASTEN CHASSIS AND LVDS CLAMP 5 INSERT WIRE SADDLE MWS 7 AND WIRE SADDLE CHA 4 2PCS 5 2 3 4 2PCS GND wire ...

Page 66: ...AT4250 CHASSIS ASSY 3 1 NO OPERATION INSTRUCTION 1 GET LCD BEZEL INSPECT COEMETIC 2 GET FUNCTION KEY ASSEMBLE NLCD BEZEL 3 PUT LCD BEZEL ON THE CONVEY 1 ...

Page 67: ...AT4250 CHASSIS ASSY 2 2 NO OPERATION INSTRUCTION 1 GET PANEL BKT L R PUT ON THE PANEL 2 LOCK SCREW M4 6 4 TO FASTEN PANEL BKT L R AND CLAMPS 3 INSERT WIRE CLIP IN L R BKT 1 3 2 ...

Page 68: ...AT4250 CHASSIS ASSY 2 1 NO OPERATION INSTRUCTION 1 GET EMI GASKET 3 STICKED ON THE PCB TRAY 2 GET SPEAKER CABLE THROUGH CHASSIS ASSEMBLE IT 3 LOCK SCREW M4 6 4 TO FASTEN PANEL BKT L R 1 3 2 ...

Page 69: ...RUCTION 1 CLEAN THE SPONGE AND PUT IT ON LINE 2 PUT TRAVEL CARD ON THE LINE 3 FETCH PANEL AND INSPECT IT 4 GET EMI GASKET 3 STICKED ON THE PANEL 5 INSERT LVDS CABLE INV CABLE AND SCAN TRAVEL CARD PRESS DOWN THE COUNTER ONCE AGAIN 5 4 ...

Page 70: ...he symptoms by attempting to re create the failure by running the diagnostic test or by repeating the same operation 3 Disassemble and assemble the unit without any power sources 4 If any problem occurs you can perform visual inspection before you follow this chapter s instructions You can check the following Power cords are properly connected and secured There are no obvious shorts or opens There...

Page 71: ... board Or IO board or All cable LED Bright Replacement Panel A Replacement M B END no LED Bright Green color Check Remote control and keypad OK Replacement Remote control or IR board or Keypad board NG Replacement Cable Check M B no no no LCD Panel can Display no Check panel s all cable Replacement M B Check Power code Power code Plug in Replace Power board or Main board Or IO board or All cable L...

Page 72: ...B Replacement LCD Panel Inverter B END LCDPanel Backlight Bright LCDPanel Backlight Bight Replacement Main B Inverter power Cable had Plug in Change Inverter Power Cable LCDPanel Backlight Bright Replacement Power B Replacement LCD Panel Inverter B END LCDPanel Backlight Bright LCDPanel Backlight Bight Replacement Main B B no no no no ...

Page 73: ...Function Remote Control have battery Change Battery IR Board Cable plug in Check IR B cable or Replacement IR B Cable Press Remote Menu Key OSD can Display Replacement IR B C Press Remote Menu Key OSD can Display Replacement M B END ...

Page 74: ... Button Keys No Function Key Board Cable plug in Check K B cable or Replacement K B Cable Press Menu Key check have Function Replacement K B Cable End Press Menu Key check have Function Replacement K B Cable End D ...

Page 75: ... No Display RFCable plug in CheckRFcable or Replacement RFCable Replacement I Oboard RFCanDisplay END Replacement M B RFCable plug in CheckRFcable or Replacement RFCable Replacement I Oboard RFCanDisplay END Replacement M B E no no ...

Page 76: ...Chapter 3 70 COMPONENT1 and COMPONENT2 No Display Component Cable plug in Check Component cable or Replacement Component Cable Replacement I O Board Component cat display END Replacement M B Board F ...

Page 77: ...71 Chapter 3 AV1 and AV2 No Display CVBS Cable plug in Check CVBS cable or Replacement CVBS Cable Replacement I O Board CVBS cat display END Replacement M B Board G ...

Page 78: ...peaker cable or Replacement Speaker cable END Mute turn off Volume set 50 Audio R L source had plug IN Check Audio R L source cable Replacement IO B or Speaker Video can Display Check Video cable or Replacement Video Cable Speaker R L cable plug IN Check Speaker cable or Replacement Speaker cable END Mute turn off Volume set 50 H Speaker have Sound Output Speaker have Sound Output no Replacement M...

Page 79: ...73 Chapter 3 VGA No Display VGA Cable plug in Check VGA cable or Replacement VGA Cable Read EDID DATA EDID Data Normal END Write EDID data VGA can display Replacement M B I ...

Page 80: ...Chapter 3 74 HDMI No Display HDMI Cable plug in Check HDMI cable or Replacement HDMI Cable Read EDID DATA EDID Data Normal END Write EDID data HDMI can display Replacement M B J ...

Page 81: ...r Replacement HDMI CABLE Read EDID DATA EDID Data Normal Write EDID data Sound output Replacement Main B END HDMI Cable plug in Check HDMI cable or Replacement HDMI CABLE Read EDID DATA EDID Data Normal Write EDID data Sound output Replacement Main B END no K no no ...

Page 82: ...l Replacement Main B Sound Normal Replacement Main B L Mute turn off Volume set to 50 PC can Display Check Video cable or PC or Replacement VGA cable no Audio Line in Cable Plug IN Check Line in cable or Replacement Line in Cable END no no ...

Page 83: ...Check Component cable or Replacement Component Cable Component Sound Normal Replacement IO B END Component Sound Normal no M Replace M B Mute turn off Volume 30 Earphone remove Component Source can Display Check Component cable or Replacement Component Cable ...

Page 84: ...k Video and R L cable or Replacement Video or R L Cable AV1 S Video Sound Normal Replacement IO B END AV1 S Video Sound Normal no N Replace M B Mute turn off Volume 30 Earphone remove AV1 S Video Source can Display Check Video and R L cable or Replacement Video or R L Cable ...

Page 85: ... is made it will NOT be noted on the 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 to return the defective parts you should fo...

Page 86: ...M3507 003 CABLE POWER B TO MB TO DT CABLE ASSY HX7 P MB DT 14P 10P 8P REV1A 50 M3507 004 CABLE MB TO DT CABLE ASSY HV4E MB DT 36P 36P 3A 50 M3507 005 CABLE AV4 CABLE ASSY HV4E AV4 11P 7P REV2A 50 M3507 006 CABLE MB TO KEY TO IR CABLE ASSY HV4 MB IR BTN 10 9 8 REV1A 50 M34V7 004 SPEAKER CABLE CABLE ASSY HH2 SPEAKER 2P 3P 4P 1A 50 M12V7 005 CABLE ADUIO TO POWER BOARD 8P 7P CABLE ASSY HX4 AUDIO POWER...

Page 87: ...GBHX4004 3A 47 M34V7 006 EMI GASKET POWER HX4 GBHX4005 3A EMI GASKET POWER HX4 GBHX4005 3A 47 M34V7 007 GASKET 385X15X14 HV4E GBHV4004 3A GASKET 385X15X14 HV4E GBHV4004 3A 47 M3507 001 CLAMP CMO D HX4 CLAMP CMO D HX4 FBHX4005 REV3A 47 M3507 002 CLAMP CMO R L HX4 CLAMP CMO R L HX4 FBHX4004 REV3A 47 M3507 003 CABLE CLIP CABLE CLIP FAA 51 VV3 EBVV3004 REV3A 47 M3507 004 BUTTON LABEL LABEL BUTTONS HV9...

Page 88: ...6 B NI SCREW F3 0 6 B NI 86 M25V7 002 PACKING PE BAG FOR ACC QN4C HAQN4004 REV3A LF PE BAG FOR ACC QN4C HAQN4004 REV3A LF 47 M24V7 006 EPE BAG AH4 HAAH4001 3A 1200 950 EPE BAG AH4 HAAH4001 3A 1200 950 47 M34V7 013 EPE SHEET 970WX700L VEW7 HAVW E001 REV3A EPE SHEET 970WX700L VEW7 HAVWE001 R EV3A 47 M34V7 014 EPS FOAM TOP R HX4 HBHX4006 3A EPS FOAM TOP R HX4 HBHX4006 3A 47 M34V7 015 EPS FOAM BASE L ...

Page 89: ......

Search results

Summary of Contents for AT4250-DTV

Reviews:

Related manuals for AT4250-DTV

Brands by name

Popular brands

Acer AT4250-DTV, Service Manual

Search results

Summary of Contents for AT4250-DTV

Reviews:

Related manuals for AT4250-DTV

Brands by name

Popular brands