Text preview for : S.G_AT3201W_CH3.pdf part of Acer AT3201W ACER AT3201W-CH1 EU & US_ LCD TV Service Manual
Back to : ACER AT3201W-CH1 EU & US_ | Home
Chapter 3
Machine Disassembly and Replacement
This chapter contains step-by-step procedures on how to disassemble the LCD TV for maintenance and troubleshooting. To disassemble the TV, you need the following tools: Wrist grounding strap and conductive mat for preventing electrostatic discharge Small Philips screw driver Philips screwdriver Plastic flat head screw driver Tweezers NOTE: The screws for the different components vary in size. During the disassembly process, group the screws with the corresponding components to avoid mismatch when putting back the components. When you remove the stripe cover, please be careful not to scrape the cover.
Chapter 3
45
General Information
Before You Begin
Before proceeding with the disassembly procedure, make sure that you do the following: 1. 2. Turn off the power to the system and all peripherals. Unplug the AC adapter and all power and signal cables from the system.
3. Remove the battery pack. NOTE: There are several types of screws used to secure the product. The screws vary in length. Please refer the picture below, group the same type of screws together during service disassembling. Please also remember the screw location for each screw type. If you fasten the screw to the wrong location, the screw may be too long to damage the main board.
46
Chapter 3
Disassembly Procedure
Removing the TV Stand Module
1. 2. 3. 4. Remove the four screws securing the TV stand cover. Remove the TV stand cover. Remove the six screws securing the TV stand module. Remove the TV stand module.
5. 6.
Remove the four screws securing the base. Separate the base and the swivel assembly.
Remving the I/O and Media Box
1. 2. 3. 4. Remove the two screws securing the I/O box. Remove the I/O box. Remove the two screws securing the media box. Remove the media box.
Removing the Speakers
1. 2. 3. Remove the three screws securing left speaker. Disconnect the left speaker cable. Remove the left speaker.
4.
Remove the three screws securing right speaker.
Chapter 3
47
5. 6.
Disconnect the right speaker cable. Remove the right speaker.
7. 8. 9.
Remove the eight screws securing the speaker rear cover. Remove the speaker rear cover. Remove the four screws securing the speaker front cover.
10. Remove the speaker front cover.
Removing the System Fan
1. 2. 3. Remove the four screws securing the fan cover. Remove the fan cover. Remove the system fan.
NOTE: For new model which doesn't have the system fan, please refer to following changes. 1. A thermal pad will be attached on the top shield. Thermal pad
48
Chapter 3
2.
There will be vent and mylar decoration on the new wall mount.
Screw hole
Mylar decoration
Vent 3. The screws for sceuring the fan cover will be shorter.
Removing the Wall Mount Assembly
1. 2. 3. 4. Remove the sixteen screws securing the back cover. Remove the back cover. Remove the eight screws securing the wall mount assembly. Remove another eight screws securing the sall mount assembly.
5. 6.
Remove the four screw nuts securing the wall mount as shown. Lift the wall mount up and slide it out.
Removing the Power Board
1. 2. 3. Disconnect the cables from power board. Remove the three screws securing the power board. Remove the other three screws securing the power board.
Chapter 3
49
4.
Remove the power board.
Removing the Audio Board and the Main Board
1. 2. 3. Disconnect all cables connected to the audio board. Remove the four screws securing the audio board. Remove the audio board.
4. 5. 6.
Remove the two screws securing the mainboard. Remove the other four screws securing the mainboard. Detach the main board from the unit.
Removing the Interface Board
1. 2. Remove the two screws securing the interface board. Remove the interface board from the unit.
Removing the Button Board/Ear Phone Board/Speaker Board
1. 2. Remove the three screws securing the button board wireclip. Remove the fthree screws securing the button board.
50
Chapter 3
3.
Turn over the button and disconnect the cables connected to the button board and remove the button board. §@ W TV MODULE ASSY(19)
4. 5.
Remove the two screws securing the ear phone board. Remove the ear phone board.
6. 7. 8. 9.
Remove the two screws securing the left speaker board. Remove the left speaker board cover. Remove the speaker board. Repeat the procedure for right speaker board.
Chapter 3
51
Removing the LCD Module
Removing the Button Key/Power Lens/IR Lens
1. 2. 3. Remove the button key. Remove the power lens. Remove the IR lens.
4. 5.
Remove the two screws securing the left LCD bracket. Remove the two screws securing the right LCD bracket.
6. 7.
Remove the sixteen screws securing the LCD module. Remove the LCD module from the unit.
8. 9.
Remove the two screws securing the chassis middle. Remove the other screw securing the chassis middle.
10. Disconnect the cable. 11. Remove the chassis middle.
12. Remove the three screws securing the left and right LCD bracket.
52
Chapter 3
Chapter 3
53
54
Chapter 3