User Guide for acer models including: V277, 27 Inch Widescreen LCD Monitor, Widescreen LCD Monitor, 27 Inch LCD Monitor, LCD Monitor, Monitor, V277 LCD Monitor
prieš 4 dienas — Product Announcement: This product is certificated to meet RoHS Directive and Lead-Free produced definition. Using approved.
9 déc. 2022 — Product Announcement: This product is certificated to meet RoHS Directive and Lead-Free produced definition. Using approved.
ACER_V277 LIFECYCLE EXTENSION GUIDE 1 3 Contents Table of Contents Important Safety Notice------------------------------------------------------------------------------------- 3 1. Exploded Diagram -------------------------------------------------------------------------------------- 4 2. Wiring connectivity diagram-------------------------------------------------------------------------- 5 3. Mechanical Instructure--------------------------------------------------------------------------------- 6 4. Assembly and Disassembly Procedures------------------------------------------------------------ 7 5. Troubleshooting----------------------------------------------------------------------------------------- 15 6. FRU List--------------------------------------------------------------------------------------------------- 19 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 Important Safety Notice ACER S190HQL 1 - 2 - 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 nonRoHS parts. Service providers assume all liability. Qualified Repairability: Proper service and repair is important to the safe, reliable operation of all series products. The service providers recommended by vender should being aware of notices listed in this service manual in order to minimize the risk of personal injury when perform service procedures. Furthermore, the possible existed improper repairing method may damage equipment or products. It is recommended that service engineers should have repairing knowledge, experience, as well as appropriate product training per new model before performing the service procedures. NOTICE: ! To avoid electrical shocks, the products should be connect to an authorized power cord, and turn off the master power switch each time before removing the AC power cord. ! To prevent the product away from water or exposed in extremely high humility environment. ! To ensure the continued reliability of this product, use only original manufacturer's specified parts. ! To ensure following safety repairing behavior, put the replaced part on the components side of PWBA, not solder side. ! To ensure using a proper screwdriver, follow the torque and force listed in assembly and disassembly procedures to screw and unscrew screws. ! Using Lead-Free solder to well mounted the parts. ! The fusion point of Lead-Free solder requested in the degree of 220°C. - 3 - 1. Exploded Diagram 4 2. Wiring Connectivity diagram 5 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 - cleaning cloth - ESD protection 6 4. Assembly and Disassembly Procedures Disassembly Procedure Step. 1 Pull the base & neck assembly out Step.2 Unscrew four screws Step.3 Separate hooks between MID_FRAME and Rear cover 7 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 8 Step.7 Unscrew two hex nuts and seven screws and remove main board PCBA from main shielding. Step.8 Remove connecter cable and separate main board and power board, separate mylar and shielding Step.9 Unscrew eleven screws and separate MID FRAME and panel Step.10 Separate lens from MID frame Step.11 Unscrew two screws and disassemble key board from rear cover and separate navi key& cable 9 Step.12 Separate wall-mount BKT and display key from rear cover Step.13 Unscrew the screw and separate base & neck assembly Step.14 Remove six silicon rubbers and unscrew seven screws to separate metal and plastic cover Step 15. Separate back cover from neck, unscrew five screws and separate front cover from hinge assy. 10 Assembly Procedure Step1. Assembly main board into shielding, use screw to fix. Assembly main board on LCM. 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). 11 Step5. Insert 10 pin back light FFC to panel and main board, use yellow tape to fix. (Tape in red circle). 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) 12 Step9. Lock middle frame screw (in red circle) Step10. If with speaker model, 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.) 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 USB hub model also need to insert USB FFC on main board. 13 Step13.Assembly rear cover, and push around the surrounding to assembly well. Step14. Lock the screw on rear cover (in red circle). 14 5. Troubleshooting 5.1 Test flow for abnormal machine: Start N Check DC Power is 19V? Y blink Key's LED indicator is light or blink? light BLACK screen but a little light? AC power? Check adaptor No input signal Power cord plug into AC source Re-insert 30pin LVDS cable between LCM and main board Still BLACK screen? N Check Main board 5VD_REG,3V3D_REG on main board is normal? Y LCM broken END 15 5.2 key debug flow: Key Debug Replace keyboard N Key works? Y END 5.3 Panel debug flow (bmipx&bmix&bip): LCM power Debug Check U12 works Disconnect LVDS cable Y Check LCM power (R82) 5V ok? Replace panel N Check Q1 pin2 is 5V? Y N N Check Q2 pin2 N is high?(2.4V) Y Check U12 works Replace Q1 Check set is ok? Y END 16 Panel debug flow (bi): LCM power Debug Disconnect LVDS cable Y Check LCM power (R500) 5V ok? Replace panel N Check Q500 pin2 is 5V? Y N Check Q501 pin2 N is high?(2.4V) Y N Check U400 works Check set is ok? Y Replace Q500 END 17 5.4 LED backlight debug flow LED driver Debug Replace FB36 Y Reassemble BR67 Check Net N 19V_BLD is 19V? FB36 is open? Y BU3 is damaged? N BD4 is damaged? N BR31 is open? N Check BU5 pin5N is high ? Y Backlight on? N Y Replace BU3 Y Y Replace BD4 Y Replace BR31 Open BR67 N Check NET BL_CTRL level is high? N Check U12 works Y Replace BU5 Y END 18 6. FRU (Field Replaceable Unit) List Parts Photo SPL_Category Acer PN Raken PN ODM Description INVERTER / Power BD 55.TFQM5.001 R050005062230 A-D PSU 1.68 A 19V (ADO-32W1 19 Ver.A7)_ACER BV7 INVERTER / Power BD 55.T0WM5.046 R050005062180 A-D PSU 1.3 A 19V ADO-25W1 19(x) _ ACER V226HQL BOARD 55.TFQM5.002 R352712920150 MAIN BD ASS'Y BOM_V277 bmipx_PVT BOARD 55.TFQM5.003 R352710920150 MAIN BD ASS'Y V277 bmix (RTD2513AR)ES7.0 BOARD 55.TFQM5.004 R352711120150 MAIN BD ASS'Y V277 bi (RTD2313AR)ES7.0 BOARD 55.TFKM5.004 R352400620156 KEY BD ASS'Y (B247Y&V247Y) CABLE 50.TFKM5.001 R046611040030 WH KY-2501HS01-04/KY-2501HS01-04 #24 100mm W/B LF CABLE 50.TFQM5.002 R046728081101 WH FFC 8P(0.5mm) 750mm(3FOLD)60V (A8+A5)LF CABLE 50.TFQM5.003 R046728081091 WH FFC 8P(0.5mm) 670mm(3FOLD)60V (A8+A5)LF CABLE 50.TFQM5.004 R046128101010 WH FFC 10P(0.5mm)600mm (4FOLD) 90V(A8+A12/V-CUT) LF CABLE 50.TFQM5.006 R046128101000 WH FFC 10P(0.5mm)600mm (4FOLD) 90V(A8+A12/V-CUT) LF CABLE 50.TFQM5.005 R046128301900 WH FFC 30P(1.0mm)500mm (2FOLD)90V G/F W/CONN.(A15+BC)+AL(AA) LF -OP CABLE 50.TFQM5.007 R046128301890 WH FFC 30P(1.0mm)500mm (2FOLD)90V G/F W/CONN.(A15+BC)+AL(AA) LF -OP FAN SINK/SPEAK/EARPHON 23.TFQM5.001 E/RTC R033502041130 SPK 2W 4ohm 28.5*22*8mm(R600mm*L200mm) VECO for BV277 LF LCD KL.27002.014 R352700920395 LM270WF5-RSAB1 Acer B277 19Microsoft Word 2016 Microsoft Word 2016