Acer Aspire 7540 Service Guide
Page 94
...drive, reconnect the diskette connector on the system board. Boot from the diagnostics diskette and start the diagnostics program. 2. See if CD-ROM Test is correct, run the Keyboard Test. If the internal keyboard does not work or an unexpected character appears, make sure ...Do the following to isolate the problem to a controller, driver, or diskette. Replace the main board. A write-enabled, diagnostic diskette is correctly seated in the connector on the system board. Replace the external diskette drive/CD-ROM module. 3. Replace the main board. Follow the instructions in...
...drive, reconnect the diskette connector on the system board. Boot from the diagnostics diskette and start the diagnostics program. 2. See if CD-ROM Test is correct, run the Keyboard Test. If the internal keyboard does not work or an unexpected character appears, make sure ...Do the following to isolate the problem to a controller, driver, or diskette. Replace the main board. A write-enabled, diagnostic diskette is correctly seated in the connector on the system board. Replace the external diskette drive/CD-ROM module. 3. Replace the main board. Follow the instructions in...
Acer Aspire 7540 Service Guide
Page 107
...-Related Symptoms Symptom / Error System configuration does not match the installed devices. Reconnect hard disk/CD-ROM/diskette drives. Printer driver Printer cable Printer System Board Device driver Device cable Device System board Keyboard/Touchpad-Related Symptoms Symptom / Error Keyboard (one or more keys... display switching System board System board Onboard Devices Configuration Run printer self-test. Battery pack System board Reconnect hard disk/CD-ROM drives. Battery fuel gauge in Sequence Reconnect the keyboard cable. Refresh battery (continue use battery until power off, then...
...-Related Symptoms Symptom / Error System configuration does not match the installed devices. Reconnect hard disk/CD-ROM/diskette drives. Printer driver Printer cable Printer System Board Device driver Device cable Device System board Keyboard/Touchpad-Related Symptoms Symptom / Error Keyboard (one or more keys... display switching System board System board Onboard Devices Configuration Run printer self-test. Battery pack System board Reconnect hard disk/CD-ROM drives. Battery fuel gauge in Sequence Reconnect the keyboard cable. Refresh battery (continue use battery until power off, then...