Acer Aspire 5739 Service Guide

Chapter 3141
Sound Problems
If sound problems are experienced, perform the following actions one at a time to correct the problem.
1.Reboot the computer.
2.Navigate to Start´ Control Panel´ System and Maintenance´ System´ Device 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.Roll back the audio driver to the previous version, if...

142Chapter 3
Internal Microphone Failure
If the internal Microphone fails, perform the following actions one at a time to correct the problem. Do not 
replace a non-defective FRUs: 

Chapter 3143
Microphone Problems
If internal or external Microphones do no operate correctly, perform the following actions one at a time to 
correct the problem.
1.Check that the microphone is enabled. Navigate to Start´ Control Panel´ Hardware and Sound´ Sound 
and select the Recording tab.
2.Right-click on the Recording tab and select Show Disabled Devices (clear by default). 
3.The microphone appears on the Recording tab. 
4.Right-click on the microphone and select Enable.
5.Select the microphone...

144Chapter 3
HDD Not Operating Correctly
If the HDD does not operate correctly, perform the following actions one at a time to correct the problem. 
1.Disconnect all external devices.
2.Run a complete virus scan using up-to-date software to ensure the computer is virus free. 
3.Run the Windows Vista Startup Repair Utility:
a.insert the Windows Vista Operating System DVD in the ODD and restart the computer. 
b.When prompted, press any key to start to the operating system DVD. 
c.The Install Windows screen...

Chapter 3145
ODD Failure
If the ODD fails, perform the following actions one at a time to correct the problem. Do not replace a non-
defective FRUs: 

146Chapter 3
ODD Not Operating Correctly
If the ODD exhibits any of the following symptoms it may be faulty:
•Audio CDs do not play when loaded 
•DVDs do not play when loaded 
•Blank discs do not burn correctly 
•DVD or CD play breaks up or jumps 
•Optical drive not found or not active: 
•Not shown in My Computer or the BIOS setup 
•LED does not flash when the computer starts up 
•The tray does not eject
•Access failure screen displays
•The ODD is noisy
Perform the following general solutions one at a...

Chapter 3147
d.Select the region suitable for the media inserted in the drive.
Discs Do Not Burn Properly
If discs can not be burned, perform the following actions one at a time to correct the problem.
1.Ensure that the default drive is record enabled:
a.Navigate to Start´ Computer and right-click the writable ODD icon. Click Properties.
b.Select the Recording tab. In the Desktop disc recording panel, select the writable ODD from the 
drop down list. 
c.Click OK.
2.Ensure that the software used for...

148Chapter 3
If the ODD works properly with alternate discs, the original disc is probably defective and should be 
replaced.
3.Turn off the power and remove the cover to inspect the connections to the ODD. See “Disassembly Process” 
on page 48.
a.Check for broken connectors on the drive, motherboard, and cables. 
b.Check for bent or broken pins on the drive, motherboard, and cable connections. 
c.Try an alternate cable, if available. If the drive works with the new cable, the original cable should be...

Chapter 3149
USB Failure (Rightside)
If the rightside USB port fails, perform the following actions one at a time to correct the problem. Do not 
replace a non-defective FRUs:
Modem Function Failure
If the internal Modem fails, perform the following actions one at a time to correct the problem. Do not replace a 
non-defective FRUs: 

150Chapter 3
Wireless Function Failure
If the WLAN/WiMAX fails, perform the following actions one at a time to correct the problem. Do not replace a 
non-defective FRUs:
Bluetooth Function Failure
If the Bluetooth fails, perform the following actions one at a time to correct the problem. Do not replace a non-
defective FRUs:
Start
Reconnect the
Antenna to  the
cardCheck Antenna to
WLAN/WiMAX C ard
Check AntennaSwap the Antenna
Check WLAN/Wi MAX
CardSwap WL AN/
WiMAX Card
Check Function BoardSwap...