acer R240HY 23.8 Inch Wide Viewing IPS Display User Guide

acer R240HY 23.8 Inch Wide Viewing IPS Display

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

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. 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.

Exploded Diagram

Wiring Connectivity diagram

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

Assembly and Disassembly Procedures

Disassembly Procedure

Step. 1 Pull the base & stand assembly out

Step.2 Unscrew four screws

Step.3 Remove the rear cover and pull the connect out

Step 4. Pull the base assembly out again from Rear Cover

Step.5 Remove all yellow tapes and separation four connectors

Step.6 separate speaker from MID_FRAME and LVDS & Backlight FFC from LCM

Step.7 Separation two Al tapes and remove the shielding case

Step.8 Unscrew screws

Step.9 Remove from MID frame

Step.10 Separation the display key assembly

Step.11 Separation the cable and the plastic

Step.12 Unscrew two hex nuts and two screws

Step.13 Unscrew the screw and separate base & stand assembly

Step.14 Separation four cilicon rubbers

Assembly Procedure

Step1. Assembly main board into shielding, use AL tape fix. Assembly main board on LCM.

Step2. Insert 30 pin LVDS FFC to LCM, then use yellow tape to tape FFC.

Step3. Insert 6pin back light wireless to panel and main board.

Step4. Assembly the key board to the plastic and 8pin FFC assembly to key board.

Step5. Assembly the plastic to mid-frame.

Step6. Assembly middle frame with LCM .

Step7. Lock middle frame screw (in red circle),and insert 8pin FFC to main board.

Step8. Assembly rear cover, and push around the surrounding to assembly well.

Step9. Lock the screw on rear cover (in red circle).

Troubleshooting

Test flow for abnormal machine:

LED backlight debug flow:

Power debug flow:

FRU (Field Replaceable Unit) List

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