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Acer CB272U Service Manual
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Acer CB272U Service Manual

27" lcd monitor
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27" LCD Monitor
ACER CB272U
Service
Service
Service
Acer Monitor CB272U
LIFECYCLE EXTENSION
GUIDE
1

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Summary of Contents for Acer CB272U

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

  • Page 2: Table Of Contents

    Contents Important 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.

  • Page 3: Important Safety Notice

    Important Safety Notice Proper service and repair is important to the safe, reliable operation of all ACER Company Equipment. The service procedures recommended by ACER and described in this service manual are effective methods of performing service operations. Some of these service operations require the use of tools specially designed for the purpose.

  • Page 4: Exploded View Diagram With List Of Items

    1. Exploded view diagram with list of items Item Description TPV Part No. ACER Part No. LEPCLQA2 LED BOARD 55.TCCM2.004 KEPCLQA6 KEY BOARD 55.TCCM2.003 750GBN270KCB52N000 LCD M270KCJ-L5B C5 NB INX #N/A PLPCJH541TCBU ADAPTER BOARD G9541-P0B-X-000-0010 #N/A CBPCJE2C1QG CONVERSION 715G9539 #N/A...

  • Page 5: Mechanical Instruction

    2. Mechanical Instruction Tools Required List 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) −...
  • Page 6 2.1 Disassembly Procedures: Prepare a main board, a power board and some essential cables. Connect every cable 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.
  • Page 8 Connect cables (mainboard to panel and the power board to panel). Assemble the speakers. Pasting the tapes.
  • Page 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.
  • Page 10 Assemble the stand and base ASS’Y.
  • Page 11 4.2 Disassembly procedures: Push the button to remove the stand ASS’Y and unscrew the screw on rear cover.
  • Page 12 Remove the rear cover. Use 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.
  • Page 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.
  • Page 14 Remove the screws to separate the panel and the Middle Frame, DECO BEZEL and the LED board.
  • Page 15 Take off the mylar. Turn over the shield and unscrew the screws on main board and power board.
  • Page 16 Remove the main board and power board. Disconnect the cables.

  • Page 17: Firmware Upgrade Process

    3. Firmware Upgrade Process 1. Materials list and connection ACER_MST9 U3_CB272U 2.Install USB driver. 2.1 If you use this ISP board first time, you need to install mstar driver,open the device manager. 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.
  • Page 18 3. Install the ISP tool. Note: If the F/W Upgrade use the same ISP tool as the EDID writing, 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.
  • Page 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 3.6 Processing of 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 22 4. Check the FW version after upgrade. 4.1. The way to open 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”...
  • Page 23 4.2. Do factory reset in user menu. (1)Restart the monitor after open factory menu. And then open the user menu. (2)Factory reset will turn off “Burn in” mode which screen color switches among red, green, blue and black. 5. Troubleshooting. 5.1.

  • Page 24: Writing Edid Process

    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.
  • Page 25 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 4.2. Select the EDID folder. 4.3. Load EDID successful.
  • Page 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 4.7 Start to writing. 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 1. If it appears all “00” when read the EDID data, you need reconnect the ISP tool or install the the driver of the ISP tool again. 2. If it appears all “FF”, it shows that the EDID data of the Main board is empty, you must writing the EDID again. 5.

  • Page 30: Fru (Field Replaceable Unit) List

    5. FRU (Field Replaceable Unit) List This chapter gives you the FRU (Field Replaceable Unit) listing in global configurations of ACER CB272U Refer to this chapter whenever ordering for parts to repair or for RMA (Return Merchandise Authorization). Please note that WHEN ORDERING FRU P ARTS, you should c heck the most up-to-date information available on your regional web or channel.
  • Page 31 HDMI CABLE 389G0184GAA50200AL 50.TEAM2.001 1500MM DP CABLE 389G1875AAA50100AL 50.LXPM2.008 1500MM CABLE 6P 200MM (POWER BOARD 395G801406DJ61 50.T1BM2.002 TO PANEL) CABLE 4P-2P 850/100MM(MB TO 395GH20004WM159000 50.TDGM2.003 SPEAKER) CABLE 6P 700MM(MB TO 395GH20006DM280000 50.TDGM2.002 FUNCTION KEY BOARD) CABLE 51+41P/40+34P 395GLM5140D5690000 50.TDGM2.004 420/500MM(MB TO PANEL) POWER CORD 1800MM...
  • Page 32 MIDDLE FRAME Q34G8801AEM01S0100 60.TFBM2.002 A34G4569AEM0RS013 REAR COVER A33G2236AEM01L0100 60.TBLM2.003 KEY_FUNCTION A33G2238AEM01L0100 60.TCCM2.007 stand-base ass'y Q37G0998101C0100ZA MAINFRAME Q15G331620130100FJ...

  • Page 33: Trouble Shooting Instructions

    6. Trouble shooting instructions...