Acer Aspire 9100 Service Guide

Chapter 354
Removing the Speaker Set
1.See “Removing the Battery” on page 44.
2.See “Removing the Middle Cover” on page 47.
3.See “Removing the Keyboard” on page 47.
4.See “Removing the Power Board” on page 52.
5.See “Removing the Upper Case Assembly” on page 52.
6.Disconnect the SW DJ board cable.
7.Disconnect the CIR receiver cable.
8.Then disconnect the audio board FFC cable.
9.Disconnect the speaker set cable.
10.Then detach the speaker set from the lower case.
Removing the SW DJ Board Assembly
1.See...

55Chapter 3
7.Remove the two screws securing the SW DJ board assembly.
8.Remove the SW DJ board assembly from the lower case.
9.Remove the two screws securing the SW DJ board and SW DJ board bracket.
10.Then remove the SW DJ board. 
Removing the Audio Board
1.See “Removing the Battery” on page 44.
2.See “Removing the Middle Cover” on page 47.
3.See “Removing the Keyboard” on page 47.
4.See “Removing the Power Board” on page 52.
5.See “Removing the Upper Case Assembly” on page 52.
6.See “Removing the...

Chapter 356
2.See “Removing the Middle Cover” on page 47.
3.See “Removing the Keyboard” on page 47.
4.See “Removing the Power Board” on page 52.
5.See “Removing the Upper Case Assembly” on page 52.
6.Remove the three screws securing the VGA thermal module.
7.Then detach the VGA thermal module.
Removing the Modem Board 
1.See “Removing the Battery” on page 44.
2.See “Removing the Middle Cover” on page 47.
3.See “Removing the Keyboard” on page 47.
4.See “Removing the Power Board” on page 52.
5.See...

57Chapter 3
10.See “Removing the Modem Board” on page 56.
11 .Remove the two nut screws securing the main board.
12.Press the PCMCIA card button.
13.Remove the dummy card.
14.Remove the two screws securing the main board to the lower case.
15.Then detach the main board from the lower case carefully.
Removing the Control Board
1.See “Removing the Battery” on page 44.
2.See “Removing the Middle Cover” on page 47.
3.See “Removing the Keyboard” on page 47.
4.See “Removing the Power Board” on page 52.
5.See...

Chapter 358 

59Chapter 3 

Chapter 460
Use the following procedure as a guide for computer problems.
1.Obtain the failed symptoms in as much detail as possible.
2.Verify the symptoms by attempting to re-create the failure by running the diagnostic test or by repeating 
the same operation.
3.If any problem occurs, you can perform visual inspection before you fellow this chapter’s instructions. You 
can check the following:
power cords are properly connected and secured;
there are no obvious shorts or opens;
there are no obviously...

61Chapter 4
System Check Procedures
External Diskette D rive Check
Do the following steps to isolate the problem to a controller, driver, or diskette. A write-enabled, diagnostic 
diskette is required.
NOTE: Make sure that the diskette does not have more than one label attached to it. Multiple labels can cause 
damage to the drive or cause the drive to fail.
Do the following to select the test device.
1.The FDD heads can become dirty over time, affecting their performance. Use an FDD cleaning kit to...

Chapter 462
3.Replace the main board.
The following auxiliary input devices are supported by this computer:
TEmbedded Numeric Keypad
TExternal keyboard
If any of these devices do not work, reconnect the cable connector and repeat the failing operation.
Memory Check
Memory errors might stop system operations, show error messages on the screen, or hang the system. 
Currently, we do not provide memory test program. However, if you need to check memory but have no testing 
program or diagonositc utility at...

63Chapter 4
Check the Power Adapter
Unplug the power adapter cable from the computer and measure the output voltage at the plug of the power 
adapter cable. See the following figure
1.If the voltage is not correct, replace the power adapter.
2.If the voltage is within the range, do the following:
TReplace the main board.
TIf the problem is not corrected, see “Undetermined Problems” on page 80.
TIf the voltage is not correct, go to the next step.
NOTE: An audible noise from the power adapter does not...