Aspire 7520 / 7520G Service Guide
Page 92
...the "Serial Port" in the Devices Configuration" of BIOS Setup Utility is set to Enabled. Keyboard System board Reconnect touchpad cable. Remove battery pack and let it cool for 2 hours. USB does not work . Onboard Devices Configuration Run printer self-test. Device ...Undetermined Problems" on page 88. 86 Chapter 4 Refresh battery (continue use battery until power off, then charge battery). Reconnect hard disk/CD-ROM drives. Hard disk connection board System board Peripheral-Related Symptoms Symptom / Error System configuration does not match the installed devices. Press Fn+F5,...
...the "Serial Port" in the Devices Configuration" of BIOS Setup Utility is set to Enabled. Keyboard System board Reconnect touchpad cable. Remove battery pack and let it cool for 2 hours. USB does not work . Onboard Devices Configuration Run printer self-test. Device ...Undetermined Problems" on page 88. 86 Chapter 4 Refresh battery (continue use battery until power off, then charge battery). Reconnect hard disk/CD-ROM drives. Hard disk connection board System board Peripheral-Related Symptoms Symptom / Error System configuration does not match the installed devices. Press Fn+F5,...
Aspire 7520 / 7520G Service Guide
Page 94
... find the failing FRU. 7. Power-off the computer. 2. Remove or disconnect all attached devices are supported by the computer. If the problem remains, replace the following devices: T Non-Acer devices T Printer, mouse, and other external devices T Battery pack T Hard disk drive T DIMM T CD-ROM/Diskette drive Module T PC Cards 4. NOTE: Verify that the power supply...
... find the failing FRU. 7. Power-off the computer. 2. Remove or disconnect all attached devices are supported by the computer. If the problem remains, replace the following devices: T Non-Acer devices T Printer, mouse, and other external devices T Battery pack T Hard disk drive T DIMM T CD-ROM/Diskette drive Module T PC Cards 4. NOTE: Verify that the power supply...