Acer Aspire 1620 Service Guide

							Chapter 362
Removing the LCD Hinges
1.See “Removing the Battery” on page 52.
2.See “Removing the Middle Cover” on page 56.
3.See “Removing the Launch Board” on page 56.
4.See “Removing the LCD Module” on page 57.
5.See “Removing the LCD Bezel” on page 59.
6.See “Removing the Inverter Board (15” LCD)” on page 59.
7.See “Removing the 15” TFT LCD” on page 60.
8.Remove the screw holding the right hinge, then remove the right hinge.
9.Remove the screw holding the left hinge, then remove the left hinge. 
						

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Disassembling the Main Unit
Removing the Keyboard
1.See “Removing the Battery” on page 52.
2.See “Removing the Middle Cover” on page 56.
3.To remove the keyboard, carefully pull the keyboard out and upwards as the pticute shows.
 
4.Use a plastic tweezers or a plastic flat screwdriver to disconnect the keyboard cable from the main board 
carefully, then remove the keyboard.
Removing the RTC Battery
1.See “Removing the Battery” on page 52.
2.See “Removing the Middle Cover” on page 56.
3.See “Removing the Keyboard” on page 63.
4.Disconnect the RTC battery cable then remove it. 
 
Removing the Fan
1.See “Removing the Battery” on page 52.
2.See “Removing the Middle Cover” on page 56.
3.See “Removing the Keyboard” on page 63.
4.Disconnect the fan cable and remove the three screws fastening the fan. Then remove the fan. 
						

							Chapter 364
 
Removing the Thermal Module
1.See “Removing the Battery” on page 52.
2.See “Removing the Middle Cover” on page 56.
3.See “Removing the Keyboard” on page 63.
4.See “Removing the Fan” on page 63.
5.Disconnect the fan cable then remove the four screws fastening the thermal module.
6.Then remove the thermal module.
Removing the Processor
1.See “Removing the Battery” on page 52.
2.See “Removing the Middle Cover” on page 56.
3.See “Removing the Keyboard” on page 63.
4.See “Removing the RTC Battery” on page 63.
5.See “Removing the Fan” on page 63.
6.See “Removing the Thermal Module” on page 64.
7.Lift up the CPU socket lever. Then remove the CPU. Remember to press down the lever as the video 
shows after you remove the CPU.  
						

							65Chapter 3
Installing the Processor
1.See “Removing the Battery” on page 52.
2.See “Removing the Middle Cover” on page 56.
3.See “Removing the Keyboard” on page 63.
4.See “Removing the RTC Battery” on page 63.
5.See “Removing the Fan” on page 63.
6.See “Removing the Thermal Module” on page 64.
7.Lift up the CPU lever, then place the CPU back to the CPU socket. Please remember to press the CPU 
lever after you put the CPU back to the socket.
Removing the Upper Case Assemly 
1.See “Removing the Keyboard” on page 63.
2.Disconnect the touchpad cable.
3.Remove the 5 screws that secure the upper case to the lower case. Then turn over the main unit and 
remove the 15 screws holding the lower case to the upper case. 
						

							Chapter 366
4.Then take the upper case assembly off the main unit.
Removing the Touchpad Board
1.See “Removing the Battery” on page 52.
2.See “Removing the Middle Cover” on page 56.
3.See “Removing the Keyboard” on page 63.
4.See “Removing the Upper Case Assemly” on page 65.
5.To detach the touch pad board, first disconnect the touch pad cable from the touch pad board with a 
plastic tweezers.Then release the touchpad cover lock on the back as the picture shows.
6.Remove the touchpad cover, the remove the touchpad button pad. Finally remove the touchpad board 
from the upper case.
Removing the Touchpad Cable
1.See “Removing the Battery” on page 52. 
						

							67Chapter 3
2.See “Removing the Middle Cover” on page 56.
3.See “Removing the LCD Module” on page 57.
4.See “Removing the Keyboard” on page 63.
5.See “Removing the Upper Case Assemly” on page 65.
6.See “Removing the Touchpad Board” on page 66.
7.Remove the touchpad scroll key then remove the touchpad cable.
Removing the VGA Thermal Plate
1.See “Removing the Battery” on page 52.
2.See “Removing the Middle Cover” on page 56.
3.See “Removing the Keyboard” on page 63.
4.See “Removing the Fan” on page 63.
5.See “Removing the Thermal Module” on page 64.
6.Remove the seven screws holding the VGA thermal plate then remove it.
Removing the CPU Heatsink Plate
1.See “Removing the Battery” on page 52.
2.See “Removing the Middle Cover” on page 56.
3.See “Removing the Keyboard” on page 63.
4.See “Removing the Fan” on page 63.
5.See “Removing the Thermal Module” on page 64.
6.Remove the screw that fastens the CPU heatsink plate then remove it. 
						

							Chapter 368
Removing the Second Fan Bracket
1.See “Removing the Battery” on page 52.
2.See “Removing the Middle Cover” on page 56.
3.See “Removing the LCD Module” on page 57.
4.See “Removing the RTC Battery” on page 63.
5.See “Removing the Fan” on page 63.
6.See “Removing the Thermal Module” on page 64.
7.Remove the three screws that fasten the second fan bracket then remove the bracket.
Removing the ODD Module(1)
1.See “Removing the Battery” on page 52.
2.Remove the screw that fastens the ODD bracket on the bottom. Push the ODD module at the point the 
red arrow indicates hard.Then remove the ODD module from the lower case.
NOTE: If you need to replace the ODD module only, you can remove the ODD module as the steps above.
Removing the ODD Module(2)
1.See “Removing the Battery” on page 52.
2.See “Removing the Middle Cover” on page 56.
3.See “Removing the Keyboard” on page 63.
4.See “Removing the Upper Case Assemly” on page 65. 
						

							69Chapter 3
5.See “Removing the Thermal Module” on page 64.
6.See “Removing the VGA Thermal Plate” on page 67.
7.Push the ODD module outwards then take the ODD out of the support bracket. Remove the screw that 
fastens the ODD support bracket then remove it.
Removing the HDD Bracket
1.See “Removing the Battery” on page 52.
2.See “Removing the Middle Cover” on page 56.
3.See “Removing the Keyboard” on page 63.
4.See “Removing the Upper Case Assemly” on page 65.
5.Remove the four screws holding the HDD bracket, then remove the HDD bracket.
Removing the Main Board
1.See “Removing the Battery” on page 52.
2.See “Removing the Middle Cover” on page 56.
3.See “Removing the Keyboard” on page 63.
4.See “Removing the Upper Case Assemly” on page 65.
5.See “Removing the Fan” on page 63.
6.See “Removing the Thermal Module” on page 64.
7.See “Removing the VGA Thermal Plate” on page 67.
8.See “Removing the CPU Heatsink Plate” on page 67.
9.See “Removing the Second Fan Bracket” on page 68.
10.See “Removing the ODD Module(2)” on page 68.
11 .See “Removing the HDD Bracket” on page 69.
12.Disconnect the launch board cable. Tear off the tape that fastens the speaker set cable. Then disconnect 
the speaker set cable. 
						

							Chapter 370
.
13.Remove the two screws holding the main board as the picture shows. Remove another two screws that 
fasten the main board. Then detach the main board from the lower case carefully.
Removing the DC Board
1.See “Removing the Battery” on page 52.
2.See “Removing the Middle Cover” on page 56.
3.See “Removing the Keyboard” on page 63.
4.See “Removing the Upper Case Assemly” on page 65.
5.See “Removing the Fan” on page 63.
6.See “Removing the Thermal Module” on page 64.
7.See “Removing the VGA Thermal Plate” on page 67.
8.See “Removing the CPU Heatsink Plate” on page 67.
9.See “Removing the Second Fan Bracket” on page 68.
10.See “Removing the ODD Module(2)” on page 68.
11 .See “Removing the HDD Bracket” on page 69.
12.See “Removing the Main Board” on page 69.
13.Remove the two screws that fasten the DC board. Then detach the DC board from the lower case.
Removing the I/O Port Bracket
1.See “Removing the Battery” on page 52.
2.See “Removing the Middle Cover” on page 56. 
						

							71Chapter 3
3.See “Removing the Keyboard” on page 63.
4.See “Removing the Upper Case Assemly” on page 65.
5.See “Removing the Fan” on page 63.
6.See “Removing the Thermal Module” on page 64.
7.See “Removing the VGA Thermal Plate” on page 67.
8.See “Removing the CPU Heatsink Plate” on page 67.
9.See “Removing the Second Fan Bracket” on page 68.
10.See “Removing the ODD Module(2)” on page 68.
11 .See “Removing the HDD Bracket” on page 69.
12.See “Removing the Main Board” on page 69.
13.Remove the four hex screws to detach the I/O port bracket from the main board.
Removing the PCMCIA Slot
1.See “Removing the Battery” on page 52.
2.See “Removing the Middle Cover” on page 56.
3.See “Removing the Keyboard” on page 63.
4.See “Removing the Upper Case Assemly” on page 65.
5.See “Removing the Fan” on page 63.
6.See “Removing the Thermal Module” on page 64.
7.See “Removing the VGA Thermal Plate” on page 67.
8.See “Removing the CPU Heatsink Plate” on page 67.
9.See “Removing the Second Fan Bracket” on page 68.
10.See “Removing the ODD Module(2)” on page 68.
11 .See “Removing the HDD Bracket” on page 69.
12.See “Removing the Main Board” on page 69.
13.Remove the four screws that secure the PCMCIA slot, then remove the PCMCIA slot from the lower case.