System test procedures

Testing the external diskette drive

Use the following procedure to isolate a problem in a diskette controller, driver, or drive. You must have a write-enabled, diagnostic diskette to complete this test.

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.

To test the external diskette drive:

1Boot from the diagnostics diskette and start the diagnostics program.

2Run the FDD Test and see if the test completes successfully.

3Follow any instructions in the message window.

If the error still remains:

1Reconnect the external diskette drive/DVD-ROM module to a USB jack.

2Replace the external diskette drive/CD-ROM module.

3Replace the system board.

Testing the external CD-ROM drive

Use the following procedure to isolate a problem in a CD-ROM controller, driver, or drive.

Note: Make sure that the CD-ROM does not have any label attached to it.

The label can cause damage to the drive or can cause the drive to fail.

To test the external CD-ROM drive:

1Boot from the diagnostics diskette and start the diagnostics program.

2Run the CD-ROM Test and see if the test completes successfully.

3Follow the instructions in the message window.

If an error occurs, reconnect the connector on the system board.

If the error still remains:

1Reconnect the external diskette drive/CD-ROM module to a USB jack.

2Replace the external diskette drive/CD-ROM module.

3Replace the system board.

Testing the keyboard or auxiliary input device

If the internal keyboard does not work or an unexpected character appears, make sure that the flexible cable extending from the keyboard is correctly seated in the connector on the system board. If the keyboard cable is connected correctly, run the Keyboard Test.

Note: Disconnect any external keyboards before testing the built-in keyboard.

If the tests detect a keyboard problem, do the following one at a time to correct the problem.

1Reconnect the keyboard cable to the system board.

2Replace the keyboard.

3Replace the system board.

Important: Do not replace a non-defective FRU.

The following auxiliary input devices are supported by this notebook:

Chapter 4: Troubleshooting

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Acer 7730A manual System test procedures, 137, Testing the external diskette drive, Testing the external CD-ROM drive