Contents Important Safety Notice ................3 1. Exploded Diagram ................4 2. Wiring connectivity diagram ..............5 3. Mechanical Instruction ................. 6 4. Assembly and Disassembly SOP ............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 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.
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...
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 R/C...
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Step 4. Pull up the Rear Cover and pull out all connectors Step.5 Unscrew screws on main shielding and disassemble AL tape Step.6 separate SPK from MID_FRAME and LVDS & Backlight FFC from LCM Step.7 Unscrew two hex nuts and seven screws and remove main board PCBA from main shielding.
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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 LCM Step.10 Separate lens from MID frame Step.11 Unscrew two screws and disassemble key board from rear cover and separate navi key& cable...
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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 four silicon rubbers and unscrew seven screws to separate metal and plastic cover Step 15. Separate back cover from neck , unscrew two screws and separate front cover from hinge assy.
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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)
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Step4. Use Al tape to fix shielding (tape in blue circle). Step5. Insert 6 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.
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Step7. Tape AL tape to fix FFC. (Tape in red circle). Step8. Assembly middle frame with LCM and fix screw (in red circle) Step9. Lock middle frame screw (in red circle)
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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.) red and yellow and white cable black cable Step11.
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Step13.Assembly rear cover, and push around the surrounding to assembly well. Step14. Lock the screw on rear cover (in red circle).
5. Troubleshooting 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...
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5.2 key debug flow: Key Debug Replace keyboard Check U12 works Key works? 5.3 Panel debug flow (bmiix&bii): 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...
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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?