Acer Aspire 1420pt Service Guide

Chapter 371
Removing the CRT Board
1.See “Removing the Upper Cover” on page 57.
2.Turn the LCD module to expose the CRT board.
3.Remove the one (1) screw.
StepScrewQuantityScrew Type.
CRT Board M2*4 1 

72Chapter 3
4.Lift the CRT board up one (1) centimetre (0.5 inch).
CAUTION: Do not lift too high and strain the cable and connector still attached.
5.Turn the CRT board over.
6.Remove the CRT cable. 

Chapter 373
Removing the Mainboard
1.See “Removing the Upper Cover” on page 57.
2.See “Removing the I/O Board” on page 65.
3.See “Removing the Bluetooth Module” on page 67.
4.See “Removing the LED Board” on page 68.
5.See “Removing the CRT Board” on page 71.
6.Disconnect the touchscreen cable.
7.Remove the LCD connector cable clear protective cover. 

74Chapter 3
8.Disconnect the LCD cable.
9.Disconnect the speaker cable.
10.Remove the two (2) screws.
StepScrewQuantityScrew Type.
Main Board M2*4 2 

Chapter 375
11 .Lift up the main board from the inside edge and pull away.
12.Remove the CRT cable. 

76Chapter 3
Removing the Thermal Module
1.See “Removing the Mainboard” on page 73.
2.Disconnect the thermal module cable.
3.Loosen the five (5) captive screws. The three (3) captive screws for the CPU connection marked 1,2,3 
must be loosened in order: first 3, then 2, then 1.
4.Remove the thermal module.
1 2
3 

Chapter 377
Removing the RTC Battery
1.See “Removing the Mainboard” on page 73.
2.Carefully lift the battery out of the main board.
Removing the Speaker Modules
1.See “Removing the Mainboard” on page 73.
2.Remove the two (2) screws.
StepScrewQuantityScrew Type.
Speaker M2*3 2 

78Chapter 3
3.Grasp the speaker housings and remove the speaker module.
Removing the LCD Module
1.See “Removing the Mainboard” on page 73.
2.Lift the antenna cable (i) and the LCD cable (ii) away from the retention guide hook.
3.Turn the LCD module ninety (90) degrees. i) ii) 

Chapter 379
4.Remove the five (5) screws.
5.Remove the LCD module.
StepScrewQuantityScrew Type.
LCD Module M2*5 5 

80Chapter 3
 LCD Module Disassembly Process
IMPORTANT: Cable paths and positioning may not represent the actual model. During the removal and 
replacement of components, ensure all available cable channels and clips are used and that the cables are 
replaced in the same position.
NOTE: The product previews seen in the disassembly procedures may not represent the final product color or 
configuration.
LCD Module Disassembly Flowchart
Remove
LCD Brackets
Remove
Camera Module
Remove
LCD FPC Cable
Remove...