hit counter script
Download
Share
Print this page
Acer B277 Lifecycle Extension Manual
  1. Manuals
  2. Brands
  3. Acer Manuals
  4. Monitor
  5. B277
  6. Lifecycle extension manual

Acer B277 Lifecycle Extension Manual

Hide thumbs Also See for B277:

Advertisement

Quick Links

Download this manual
ACER_B277
LIFECYCLE EXTENSION
GUIDE
1

Advertisement

loading

Related Manuals for Acer B277

Summary of Contents for Acer B277

  • Page 1 ACER_B277 LIFECYCLE EXTENSION GUIDE...

  • Page 2: Table Of Contents

    Contents Table of Contents Important Safety Notice------------------------------------------------------------------------------------ - 1. Exploded Diagram --------------------------------------------------------------------------------------- 4 2. W iring connectivity diagram-------------------------------------------------------------------------- - 3. Mechanical Instructure--------------------------------------------------------------------------------- - 4. Assembly and Disassembly Procedures ------------------------------------------------------------- 5. Troubleshooting----------------------------------------------------------------------------------------- - 6. FRU List---------------------------------------------------------------------------------------------------- Safety Notice Any person attempting to service this chassis must familiarize with the chassis and be aware of the necessary safety precautions to be used when serving electronic equipment containing high voltage - 2 -...

  • Page 3: Important Safety Notice

    Important Safety Notice ACER S190HQL Product Announcement: This product is certificated to meet RoHS Directive and Lead-Free produced definition. Using approved critical components only is recommended when the situation to replace defective parts. Vender assumes no liability express or implied, arising out of any unauthorized modification of design or replacing non- RoHS parts.

  • Page 4: Exploded Diagram

    1. Exploded Diagram...

  • Page 5: Wiring Connectivity Diagram

    2. Wiring Connectivity diagram If without USB hub sku, just ignore USB board and USB board to main board FFC.

  • Page 6: Mechanical Instructure

    3. 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: - working table - Screw-driver - Knife - glove...

  • Page 7: Assembly And Disassembly Procedures

    Assembly and Disassembly Procedures  Disassembly Procedure Step. 1 Pull the base & stand assembly out Step.2 Unscrew four screws Step.3 Separate hooks between MID_FRAME and R/C...
  • Page 8 Step 4. Pull up the Rear Cover and pull out all connectors Step.5 Unscrew screws on main shielding and disassemble AL tape Detail AL. tape location as below: Step.6 separate speaker from MID_FRAME and LVDS & Backlight FFC from LCM...
  • Page 9 Step.7 Unscrew two hex nuts and seven screws and remove main board PCBA from main shielding. Step.8 Unscrew eleven screws and separate MID FRAME and LCM Step.9 Separate lens from MID frame Step.10 Unscrew one screw and disassemble USB board from rear cover and separate USB & cable...
  • Page 10 Step.11 Unscrew two screws and disassemble key board from rear cover and separate navi key& cable Step.12 Separate wall-mount BKT and display key from rear cover Step.13 Unscrew two screws and separate base & stand assembly  Assembly Procedure Step1. Assembly main board into shielding, use screw to fix. Assembly main board on LCM.
  • Page 11 Step2. Insert 30 pin LVDS FFC to LCM, then use acetate cloth tape to tape FFC. Step3. Lock the shielding on panel with screw. (in red circle) Step4. Use Al tape to fix shielding (tape in blue circle). Step5. Insert 10 pin back light FFC to panel and main board, use yellow tape to fix. (Tape in red circle).
  • Page 12 Step6. Insert 10 pin back light FFC and 30 pin LVDS FFC to main board. Use yellow tape to fix. Step7. Tape AL tape to fix FFC. (Tape in red circle). Step8. Assembly middle frame with LCM and fix screw (in red circle) Step9.
  • Page 13 (red and white cable is on left side, yellow and black is on right side.) Step11. Tape speaker cable with acetate cloth tape (in yellow circle) and yellow tape (in blue circle). Step12. Insert key board FFC on main board, B277 with hub model also need to insert USB FFC on main board.
  • Page 14 Step13.Assembly rear cover, and push around the surrounding to assembly well. Step14. Lock the screw on rear cover (in red circle).

  • Page 15: Troubleshooting

    5. Troubleshooting 5.1 Test flow for abnormal machine: Start Power cord plug Check DC Power into AC source is 19V? power? Check adaptor blink Key’s LED No input signal indicator is light or blink? light Re-insert 30pin LVDS cable BLACK screen between LCM and main board but a little light? Still BLACK...
  • Page 16 5.2 key debug flow: Key Debug Replace keyboard Check U12 works Key works? 5.3 Panel debug flow: LCM power Debug Disconnect LVDS cable Check LCM power Replace panel (R82) 5V ok? Check Q1 pin2 is 5V? Check set is ok? Check Q2 pin2 is high?(＞2.4V) Check U12 works...
  • Page 17 5.4 LED backlight debug flow： LED driver Debug Reassemble BR67 Replace FB36 Check Net FB36 is 19V_BLD is open? 19V? BU3 is damaged? Replace BU3 BD4 is damaged? Replace BD4 BR31 is open? Replace BR31 Check BU5 pin5 Check NET BL_CTRL Open BR67 is high ? level is high?

  • Page 18: Fru List

    A-D PSU 1.84 A 19V (ADO-35W1 19 Ver.A5)_ACER BV7 BOARD 55.TFPM5.003 R352710420150 MAIN BD ASS'Y B277 bmipzx (RTD2525AR)ES7.0 BOARD 55.TFPM5.004 R352710320150 MAIN BD ASS'Y B277 bmipx (RTD 2525AR)ES7.0 BOARD 55.TFPM5.005 R352712820150 MAIN BD ASS'Y BOM_B277 bmix_PVT BOARD 55.TFKM5.004 R352400620156 KEY BD ASS'Y (B247Y&V247Y) BOARD 55.TFJM5.005 R352400220138...