Acer Aspire 1420pt Service Guide

Chapter 3111
3.Turn the LCD module.
4.Lay the LCD cable in the retention guide.
5.Lay the antenna cable in the retention guide.  

11 2Chapter 3
Replacing the RTC Battery
1.Push the RTC battery into the holder.
Replacing the Thermal Module
IMPORTANT: Ensure all heat pads are in place before replacing the Thermal Module.
The following thermal pads are approved for use:
• Eapus XR-PE
1.Remove all traces of thermal grease or pad adhesive from the CPU and thermal module using a lint-free 
cloth or cotton swab and Isopropyl Alcohol, Acetone, or other approved cleaning agent. 
2.Place the thermal module on the main board. 

Chapter 311 3
3.Tighten the five (5) captive screws. First tighten the CPU captive screws in order: 1 then 2 then 3. Then 
tighten the two (2) other screws.
4.Connect the thermal module cable.
Replacing the Speakers.
1.Lay the speaker cables into the retention guides and apply glue on the retention guide locations.
1 23 

11 4Chapter 3
2.Place the speaker modules onto the bottom cover.
3.Replace the two (2) screws.
StepScrewQuantityScrew Type.
Speaker M2*3 2 

Chapter 311 5
Replacing the Mainboard
1.Connect the CRT board cable.
2.Replace the mainboard into the bottom cover inserting the external connector side first.
3.Replace the two (2) screws.
StepScrewQuantityScrew Type.
Mainboard M2*4 2 

11 6Chapter 3
4.Connect the speaker connector.
5.Connect the LCD connector.
6.Adhere the clear protective LCD connector cover. 

Chapter 311 7
7.Connect the touchscreen cable.
Replacing the CRT Board.
1.Connect the CRT cable.
2.Turn the CRT board over. 

11 8Chapter 3
3.Place the CRT board into the cover.
4.Replace the one (1) screw.
Replacing the LED Board
1.Place the LED board onto the cover. 
StepScrewQuantityScrew Type.
CRT Board M2*4 1 

Chapter 311 9
IMPORTANT:Take special care that the slider switch is properly aligned in the bottom case switch cover.
2.Replace the two (2) screws.
3.Replace the LED board cable in the main board connector.
StepScrewQuantityScrew Type.
LED Board M2*4 2 

120Chapter 3
4.Lock the mainboard connector.
5.Replace the LED board cable in the LED board connector.
6.Lock the LED board connector.