acer B247Y LCD Monitor User Manual

acer B247Y LCD Monitor

Product Information

• Product Name: ACER Monitor_B247Y
• Lifecycle Extension Guide: This guide provides instructions for disassembling and assembling the ACER Monitor_B247Y to extend its lifecycle.
• Certifications: This product is certified to meet the RoHS Directive and is Lead-Free produced.

Safety Notice: Any person attempting to service this chassis must familiarize themselves with the chassis and be aware of the necessary safety precautions to be used when servicing electronic equipment containing high voltage.

Product Usage Instructions
Important Safety
Notice1. Using approved critical components only is recommended when replacing defective parts. Vendors assume no liability, express or\ implied, arising out of any unauthorized modification of design or replacement of non- RoHS parts. Use Lead-Free solder to properly mount the parts.

Exploded Diagram
Refer to the exploded diagram in the user manual for a visual representation of the components and their positions.

Wiring Connectivity Diagram
If your SKU does not include a USB hub, ignore the USB board and USB board to the main board FFC.

Mechanical Instruction
Tools Required

• Working table
• Screwdriver
• Knife
• Glove
• Cleaning cloth
• ESD protection

Listed above are the tools typically used to disassemble the product to a point where components and materials requiring selective treatment can be removed.

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.
• Step 4: Pull up the Rear Cover and pull out all connectors.
• Step 5: Unscrew the screws on the main shielding and disassemble the AL tape.
• Step 6: Separate speaker from MID_FRAME and LVDS & Backlight FFC from LCM.
• Step 7: Unscrew two hex nuts and seven screws and remove the main board PCBA from the main shielding.
• Step 8: Unscrew eleven screws and separate MID FRAME and LCM.
• Step 9: Separate the lens from the MID frame.
• Step 10: Unscrew one screw and disassemble the USB board from the rear cover and separate USB & cable.
• Step 11: Unscrew two screws and disassemble the keyboard from the rear cover and separate the navi key & cable.
• Step 12: Separate wall-mount BKT and display key from the rear cover.
• Step 13: Unscrew two screws and separate base & stand assembly.

Assembly Procedure

Step 1: Assembly main board into shielding, use a screw to fix it.Assembly main board on LCM.
Step 2: Insert 30-pin LVDS FFC to LCM, then use acetate cloth tape to tape FFC.
Step 3: Lock the shielding on the panel with a screw (in red circle).
Step 4: Use AL tape to fix the shielding (tape in blue circle).
Step 5: Insert 6-pin backlight WH to panel and main board, use acetate tape to fix (tape in red circle).
Step 6: Insert 30-pin LVDS FFC into the main board. Use AL tape to fix (tape in blue circle).
Step 7: Tape yellow tape to fix FFC (tape in red circle).
Step 8: Assembly middle frame with LCM and fix screw (in red circle).
Step 9: Lock the middle frame screw (in red circle).
Step 10: If with speaker model, assembly speaker on the middle frame, and assembly speaker cable on the main board. (red and white cable is on the left side, yellow and black is on the right \  side).
Step 11: Tape the speaker cable with acetate cloth tape (in blue circle).
Step 12: Insert keyboard FFC on the main board. For other SKUs, refer to the additional instructions provided in the user manual.

Important Safety Notice

Product Announcement
This product is certificated to meet the RoHS Directive and Lead-Free produced definition. Using approved critical components only is recommended when the situation is to replace defective parts. Vender assumes no liability express or implied, arising out of any unauthorized modification of design or replacement of non-RoHS parts. Service providers assume all liability.

Qualified Repairability
Proper service and repair are important to the safe, reliable operation of all series products. The service providers recommended by the vendor should be aware of notices listed in this service manual in order to minimize the risk of personal injury when performing service procedures. Furthermore, the possible improper repairing method may damage equipment or products. It is recommended that service engineers should have repairing knowledge, and experience, as well as appropriate product training per the new model before performing the service procedures.

NOTICE

• To avoid electrical shocks, the products should be connected 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 to extremely high humidity environments.
• To ensure the continued reliability of this product, use only the original manufacturer’s specified parts.
• To ensure the following safety repairing behavior, put the replaced part on the components side of PWBA, not the solder side.
• To ensure using a proper screwdriver, follow the torque and force listed in assembly and disassembly procedures to screw and unscrew screws.
• Use lead-free solder to well mount the parts.
• The fusion point of Lead-Free solder is requested at the degree of 220°C.

Exploded Diagram

Wiring Connectivity diagram

If without USB hub SKU, just ignore the USB board and USB board to main board FFC.

Mechanical Instruction
Tools Required
List the type and size of the tools that would typically 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 Separate hooks between MID_FRAME and R/C
Step 4. Pull up the Rear Cover and pull out all connectors
Step.5 Unscrew the screws on the main shielding and disassemble AL tape

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

Step.7 Unscrew two hex nuts and seven screws and remove the main board PCBA from the 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 the USB board from the rear cover and separate USB & cable

Step.11 Unscrew two screws and disassemble the keyboard from the rear cover and separate the Navi key& cable

Step.12 Separate wall-mount BKT and display key from the rear cover

Step.13 Unscrew two screws and separate the base & stand assembly

Assembly Procedure

Step1. Assembly main board into shielding, use a 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 a panel with a screw. (in red circle)

Step4. Use Al tape to fix shielding (tape in blue circle).

Step5. Insert 6-pin backlight WH to panel and main board, use acetate tape to fix. (Tape in red circle).

Step6. Insert 30-pin LVDS FFC to the main board. Use AL tape to fix. (Tape in blue circle).

Step7. Tape yellow tape to fix FFC. (Tape in red circle).

Step8. Assembly middle frame with LCM and fix screw (in red circle)

Step9. Lock the 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 the speaker cable with acetate cloth tape (in blue circle).

Step12. Insert keyboard FFC on main board

Step13.Assembly rear cover, and push around the surrounding to assembly well

Step14. Lock the screw on rear cover (in red circle).

Troubleshooting

Test flow for abnormal machine

key debug flow

Panel debug flow

LED backlight debug flow

FRU (Field Replaceable Unit) List

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