Acer CB272U, Service Manual

Page 1: ...1 27 LCD Monitor ACER CB272U Service Service Service Acer Monitor CB272U LIFECYCLE EXTENSION GUIDE ...

Page 2: ...ant Safety Notice 3 1 Exploded view diagram with list of items 4 2 Mechanical Instruction 5 3 Firmware Upgrade Process 17 4 Writing EDID Process 24 5 FRU Field Replaceable Unit List 30 6 Trouble shooting instructions 33 ...

Page 3: ... may create shock fire or other hazards Under no circumstances should the original design be modified or altered without written permission from ACER ACER assumes no liability express or implied arising out of any unauthorized modification of design Servicer assumes all liability FOR PRODUCTS CONTAINING LASER DANGER Invisible laser radiation when open AVOID DIRECT EXPOSURE TO BEAM CAUTION Use of c...

Page 4: ...6 LEPCLQA2 LED BOARD 55 TCCM2 004 7 KEPCLQA6 KEY BOARD 55 TCCM2 003 12 750GBN270KCB52N000 LCD M270KCJ L5B C5 NB INX N A 14 PLPCJH541TCBU ADAPTER BOARD G9541 P0B X 000 0010 N A 15 CBPCJE2C1QG CONVERSION 715G9539 N A CABLE 51 41P 40 34P 420 500MM MB TO PANEL 395GLM5140D5690000 50 TDGM2 004 ...

Page 5: ...st the type and size of the tools that would typically can be used to disassemble the product to a point where components and materials requiring selective treatment can be removed Tool Description Screwdriver Phillip head Hexagonal head Penknife ...

Page 6: ...le as the below picture Use a screwdriver to tighten the screws till the power board and main board with shield are firmly attached and paste the mylar on the power board Assemble the LED board into the DECO Bezel Assemble the panel MIDDLE FRAME DECO bezel and use a screwdriver to tighten the screws S1 S2 S3 ...

Page 7: ...7 ...

Page 8: ...8 Connect cables mainboard to panel and the power board to panel Assemble the speakers Pasting the tapes S5 S4 ...

Page 9: ...9 Prepare a rear cover and a key board and use the screws to lock the key board Connect the pin LED board Key board and the pin Key board to mainboard Use the screws to lock the rear cover S7 S6 ...

Page 10: ...10 Assemble the stand and base ASS Y S8 ...

Page 11: ...11 4 2 Disassembly procedures Push the button to remove the stand ASS Y and unscrew the screw on rear cover S1 ...

Page 12: ...e a tool like picture using to open all latches Be careful the position of the key board Disconnect the cable main board to Key board LED board to Key board and remove the screws to remove the key board from the rear cover S3 S2 ...

Page 13: ...13 Tear up all tapes and disconnect the LVDS cable main board to panel lamp power cable power board to panel Remove the screws to remove the mainframe Remove the speakers S4 ...

Page 14: ...14 Remove the screws to separate the panel and the Middle Frame DECO BEZEL and the LED board S5 ...

Page 15: ...15 Take off the mylar Turn over the shield and unscrew the screws on main board and power board S6 ...

Page 16: ...16 Remove the main board and power board Disconnect the cables S7 ...

Page 17: ...ger 2 2 When insert the USB cable to PC USB port will pop up a Hardware Wizard to help you install the USB driver if you use this ISP board first time it can auto install success by itself Remark The USB driver files path D FTC100103 Mstar FTCUSB INF After installation the USB serial port driver please to check the port Look the properties of my Computer FW ACER_MST9 U3_CB272U ...

Page 18: ...ing you must close the EDID writing tool before running the F W Upgrade tool 3 1 Copy the three file in one folder 3 2 Double click to run the ISP tool 3 3 Connect to the monitor Click Connect If the tool communicate with monitor successfully the tool will detect the flash type of monitor ...

Page 19: ...19 3 4 Load the F W you want to upgrade Remark In order to prevent HDCP KEY data loss please must load the file name contain the Reduce of the firmware 3 5 Set parameter in Auto window ...

Page 20: ... upgrade After clicking Run the tool start to program It is forbided to power off monitor or switch off connection during programming 3 7 Successful upgrade When upgrade successful there will be green Pass letter appearing ...

Page 21: ...21 ...

Page 22: ...pen factory menu 1 Connect signal source to monitor and turn it on 2 The way to factory menu DC off and pressing the 1 key and DC on when the screen lights release the 1 key to open the menu with F 3 Select F to open factory menu Check this F W version DC 1 ...

Page 23: ...n off Burn in mode which screen color switches among red green blue and black 5 Troubleshooting 5 1 Can t Entry ISP Mode 1 Check the cables and ISP JIG are connected fluently 2 Click the Dis Con and click Connect again 3 AC off the monitor for a while and retry it 4 Change other vervion ISP program 5 Change ISP JIG or cable 6 Change PC ...

Page 24: ...3 1 Change the EDID files name as below rule DP EDID WP dat HDMI2 0 EDID WH_20 dat HDMI2_2 0 EDID WH2_20 dat 3 2 Copy these files to one folder named as ACER CB272U must contains config ini file 3 3 Copy ACER CB272U to DDC folder and put DDC and ISP tool together 3 4 Set the config as below EDID CB272U EDID ...

Page 25: ...5 4 Run the ISP tool Note If the F W Upgrade use the same ISP tool as the EDID writing you must close the F W Upgrade tool before running the EDID writing tool 4 1 Double click the icon to open the tool ...

Page 26: ...26 4 2 Select the EDID folder 4 3 Load EDID successful ...

Page 27: ...27 4 4 Tick the Only connect HDMI and Write SN 4 5 Set other setting as below 4 6 Type in the date and the 22 digit S N and click Debug Information ...

Page 28: ...Click write EDID to start writing When The green PASS appear the process is finished 4 8 After writing the EDID pass you must read the EDID to ensure the EDID data had been write into the monitor Choose one of the port to read ...

Page 29: ...ears all FF it shows that the EDID data of the Main board is empty you must writing the EDID again 5 Troubleshooting 5 1 Can t write 1 AC on the monitor and turn on it Restart the monitor 2 Take apart the monitor and connect the 7pin of EEPROM to GND to diable write protection then write EDID one by one 3 Set the Burn in on last to try again ...

Page 30: ...umber 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 follow the local government ordinance or regulations on how to dispose it properly or follow the rules set by your regional ACER office...

Page 31: ...ANEL 395G801406DJ61 50 T1BM2 002 CABLE 4P 2P 850 100MM MB TO SPEAKER 395GH20004WM159000 50 TDGM2 003 CABLE 6P 700MM MB TO FUNCTION KEY BOARD 395GH20006DM280000 50 TDGM2 002 CABLE 51 41P 40 34P 420 500MM MB TO PANEL 395GLM5140D5690000 50 TDGM2 004 POWER CORD 1800MM EUROPE 389G404A18NYHG 27 T1BM2 001 DECO BEZEO ASSY 705GQZCS034811 NA ...

Page 32: ...Q34G8801AEM01S0100 60 TFBM2 002 REAR COVER A34G4569AEM0RS013 0 NA KEY A33G2236AEM01L0100 60 TBLM2 003 KEY_FUNCTION A33G2238AEM01L0100 60 TCCM2 007 stand base ass y Q37G0998101C0100ZA NA MAINFRAME Q15G331620130100FJ NA ...

Page 33: ...33 6 Trouble shooting instructions ...