Acer Aspire 9520 Service Guide

Chapter 375
25. Remove the two screws securing the fan2.
26. Disconnect the fan2 connector from the mainboard and remove the fan2.
27. Release the three attached screws securing the VGA heatsink.
28. Remove the VGA heatsink.
29.Remove the three attached screws and remove the screw securing the CPU heatsink.
30.Remove the CPU heatsink.
31.Remove the two screws securing the VGA card.
32.Remove the VGA card.
33.Remove the screw securing the VGA bracket.
34.Remove the VGA bracket.
35.Turn the screw...

76Chapter 3
36.Remove the CPU as shown.
37.Remove the TV cable. 

Chapter 377
LCD Disassembly
1.Remove the eight LCD screw pads.
2.Remove the eight screws securing the LCD bezel.
3.Remove the LCD bezel.
4.Remove the screw securing the inverter board.
5.Turn the inverter board over, disconnect the LVDS cable and LCD cable from the inverter board.
6.Remove the inverter board.
7.Remove the four screws securing the LCD panel and LCD hinge.
8.Lift up the LCD panel, tear off the tape on the LCD cable and disconnect the LCD cable. 
9.Remove the LCD panel.
10.Remove the four...

78Chapter 3
11 .Remove the left LCD bracket.
12.Remove the four screws securing the right LCD bracket.
13.Remove the right LCD bracket.
14.Release the spring and remove the left and the right latches from the LCD cover.
15.Remove the screw securing the CCD module.
16.Remove the CCD module from the LCD cover.
17.Remove the left and right LCD hinge.
18.Remove the two screws securing the antenna bracket.
19.Remove the antenna from the LCD cover. 

Chapter 379
CCD Module Disassembly
1.Pull out the CAS from the CCD module.
2.Remove the CCD holder from the CCD module.
3.Open the CCD module as shown.
4.Remove the two screws securing the CCD board.
5.Remove the CCD hinge.
6.Remove the CCD board.
7.Disconnect the CCD cable from the CCD board. 

80Chapter 3
HDD Disassembly 
1.Remove the four screws securing the 2nd HDD bracket.
2.Remove the 2
nd HDD bracket.
3.Remove the four screws securing the 1
st HDD bracket.
4.Remove the 1
st HDD bracket. 

Chapter 381
ODD Disassembly
1.Remove the ODD bezel from the ODD module.
2.Remove the two screws securing ODD bracket.
3.Remove the ODD bracket from the ODD module. 

Chapter 482
Use the following procedure as a guide for computer problems.
NOTE: The diagnostic tests are intended to test this model.  Non-Acer products, prototype cards, or modified 
options can give false errors and invalid system responses.
1.Duplicate symptom and obtain the failing symptoms in as much detail as possible.
2.Distinguish symptom. Verify the symptoms by attempting to re-create the failure by running the diagnostic 
test or by repeating the same operation.
3.Disassemble and assemble the...

83Chapter 4
System Check Procedures
External Diskette Drive Check
If an error occurs with the internal diskette drive, reconnect the diskette connector on the system board.
If the error still remains:
1.Reconnect the external diskette drive/DVD-ROM module.
2.Replace the external diskette drive/CD-ROM module.
3.Replace the main board.
External CD-ROM Drive Check
Do the following to isolate the problem to a controller, drive, or CD-ROM. Make sure that the CD-ROM does 
not have any label attached to it. The...

Chapter 484
Power System Check
To verify the symptom of the problem, power on the computer using each of the following power sources:
1.Remove the battery pack.
2.Connect the power adapter and check that power is supplied.
3.Disconnect the power adapter and install the charged battery pack; then check that power is supplied by 
the battery pack.
If you suspect a power problem, see the appropriate power supply check in the following list:
T“Check the Battery Pack” on page 85