Component Failure - Acer Aspire Z3801 Service Manual

Component Failure

If a component fails, use the flowchart to perform the following:
Touch Screen
Failure
Component pass
Replace
Mainboard
Figure 4-4. Component Failure
Sound Problems
Perform the following:
1. Boot the computer.
2. Navigate to Start
Manager. Check the Device Manager to determine that:
 The device is properly installed
 There are no red Xs or yellow exclamation marks
 There are no device conflicts
 No hardware is listed under Other Devices
3. If updated recently, roll back the audio driver to the previous version.
4. Remove and reinstall the audio driver.
5. Make sure that all volume controls are set mid range:
 Click the volume icon on the taskbar
 Drag the slider to 50. Confirm that the volume is not muted.
 Click Mixer to verify that other audio applications are set to 50 and not muted.
6. Navigate to Start
Speakers are selected as the default audio device (green check mark).
Troubleshooting
Component
Failure
Wireless LAN
Speaker Failure
Failure
Test
component on
test bed
Component fail
Replace module
according to
procedure
 
Control Panel System and Maintenance
 
Control Panel Hardware and Sound
0
Camera
Failure
Change cables Yes
Ok
Close

Sound. Confirm that
ODD Failure
Cable
connected
properly?
No
Close
 
System Device
4-9
0