acer K273 27 Inch IPS Full HD LCD Monitor User Guide

acer K273 27 Inch IPS Full HD LCD Monitor

ACER Monitor_K273 LIFECYCLE EXTENSION GUIDE

Contents

• Safety Notice
• Important Safety Notice
• Exploded Diagram
• Wiring connectivity diagram
• Mechanical Instruction
• Assembly and Disassembly Procedures

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

The ACER S190HQL 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. Using Lead-Free solder to well mounted the parts.

Exploded Diagram The exploded diagram is not provided.

Wiring Connectivity Diagram The wiring connectivity diagram is not provided.

Mechanical Instruction The following tools are required to disassemble the product to a point where components and materials requiring selective treatment can be removed:

• Working table
• Screw-driver
• Knife
• Glove
• Cleaning cloth
• ESD protection

Assembly and Disassembly Procedures

Disassembly Procedure

1. Pull the base & neck assembly out
2. Unscrew four screws
3. Separate hooks between MID_FRAME and R/C
4. Pull up the Rear Cover and pull out all connectors
5. Unscrew screws on main shielding and disassemble AL tape
6. Separate SPK from MID_FRAME and LVDS & Backlight FFC from LCM
7. Unscrew two hex nuts and seven screws and remove main board PCBA from main shielding
8. Remove connecter cable and separate main board and power board, separate mylar and shielding
9. Unscrew eleven screws and separate MID FRAME and LCM
10. Separate lens from MID frame
11. Unscrew two screws and disassemble key board from rear cover and separate navi key & cable
12. Separate wall-mount BKT and display key from rear cover
13. Unscrew the screw and separate base & neck assembly

Assembly Procedure

1. Assembly main board into shielding, use screw to fix. Assembly main board on LCM.

2. Insert 30 pin LVDS FFC to LCM,

3. Lock the shielding on panel with screw. (in red circle)

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

5. Insert 10 pin back light FFC to panel and main board, use yellow tape to fix. (Tape in red circle).

6. Insert 10 pin back light FFC and 30 pin LVDS FFC to main board.
   Use yellow tape to fix.

7. Tape AL tape to fix FFC. (Tape in red circle).

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

9. Lock middle frame screw (in red circle)

10. 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.)

11. Tape speaker cable with acetate cloth tape (in yellow circle) and yellow tape (in blue circle).

12. Insert key board FFC on main board

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

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

Product Usage Instructions

To use the ACER Monitor_K273:

1. Place the monitor on a working table.
2. Connect the monitor to a power source.
3. Press the power button to turn on the monitor.
4. Adjust the monitor settings, such as brightness and contrast, as desired.
5. To disassemble the monitor, follow the disassembly procedure provided in the manual.
6. To assemble the monitor, follow the assembly procedure provided in the manual.

Note: When disassembling or assembling the monitor, make sure to use the required tools and follow the safety precautions provided in the manual.

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 & neck 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 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.

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

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

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

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,

Step3. Lock the shielding on panel with screw. (in red circle)

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

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)

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

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 (bmiix&bii):

LED backlight debug flow：

FRU (Field Replaceable Unit) List

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