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Summary of Contents for Acer VG272
- Page 1 ACER Monitor_VG272 LIFECYCLE EXTENSION GUIDE...
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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... -
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 & neck assembly out Step.2 Unscrew four screws using a screwdriver Step.3 Use tools to separate the R/C shell from the middle frame... - Page 8 Step 4. Pull up the Rear Cover and pull out 2 pcs connecters Step.5 Separate 2pcs SPK from MID_FRAME . Step.6 Use screwdriver unscrew four screws . Step.7 pull out 2 Pcs connectors and remove main-shielding from LCM...
- Page 9 Step.8 Separate mylar and move wires from shielding’s hook Step.9 Use screwdriver unscrew six screws and remove main board and PSU from main shielding. Step.10 Remove connecter cable and separate main board and power board Step.11 Use screwdriver unscrew 9 pcs screws and separate MID Frame and LCM...
- Page 10 Step.12 Use screwdriver unscrew 4pcs screws and separate shielding holder from the LCM Step.13 Use screwdriver unscrew 2pcs screws and disassemble key board from rear cover and separate navi key& FFC Step.14 Use screwdriver unscrew the screw and separate base & neck assembly...
- Page 11 Assembly Procedure Step1. Insert 6pin backlight LVDS and 4pin PSU LVDS on main board. Step2. Tape mylar on shielding (as red mark) Step3. Insert 30pin FFC to main board and 4pin LVDS to PSU, then assembly main board and PSU into shielding, fix six screws.
- Page 12 Step4. Cover the big mylar on power board, and tape small mylar at the side as pic 2. Fix the backlight cable on the hook of shielding. Step5. Fix the bracket on panel by 4 screws. Step6. Tape gasket block on shielding...
- Page 13 Step7. Insert 30pin FFC to panel Step8. Insert 6P backlight cable to panel Step9. Fix the shielding on panel by screws...
- Page 14 Step10. Assembly middle frame with panel and fix by screws (in red circle). Step11. Tape 1pcs CR sponge on the left side, and fix the backlight LVDS into the hook of mid frame. Step12. Assembly speaker on middle frame, and assembly speaker cable on main board. (red and white cable is on left side, yellow and black is on right side.) Step13.
- Page 15 Step14. Fix navi key on keypad, and insert 8pin FFC to connecter. Step15. Fix keypad on rear cover by screws, then use yellow tape to tape FFC. Insert FFC to main board. Step14. Assembly rear cover, and push around the surrounding to assembly well.
- Page 16 Step15. Lock the screw on rear cover (in red circle).
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Page 17: Troubleshooting
5. Troubleshooting 5.1 Test flow for abnormal machine Start Power cord plug Check DC Power is into AC source 19V(F1)? power? Check Power Board blink Key’s LED No input signal indicator is light or blink? light Re-insert 30pin edp cable between LCM and main board Black screen but a little... -
Page 18: Fru List
5.2 key debug flow: Key Debug Replace keyboard Check U5 works Key works? 5.3 Panel debug flow: LCM power Debug Disconnect edp cable Check LCM power Replace panel (R43)is 10V? Check U7 pin2 is 19V? Check DC power Check set is ok? Check U7 pin7 is High? Check U5 works... - Page 19 5.4 LED backlight debug flow： LED driver Debug Reassemble BR67 Replace BL1 Check Net BL1 is 19V_BLD is open? 19V? BU1 is damaged? Replace BU1 BD1 is damaged? Replace BD1 Open BR27 Check NET VB_CTRL Check BU2 pin5 level is high? is High Check U5 works Backlight on?
- Page 20 6. FRU (Field Replaceable Unit) List...