NV52/NV54/NV56/NV58 Service Guide - tim.id.au
NV52/NV54/NV56/NV58 Service Guide - tim.id.au
NV52/NV54/NV56/NV58 Service Guide - tim.id.au
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System test procedures<br />
Testing the optical drive<br />
Use the following procedure to isolate a problem in an optical drive controller,<br />
driver, or drive.<br />
Important<br />
Make sure that the CD-ROM does not have any label attached to it. The<br />
label can c<strong>au</strong>se damage to the drive or can c<strong>au</strong>se the drive to fail.<br />
To test the optical drive:<br />
1 Boot from the diagnostics diskette and start the diagnostics program.<br />
2 Run the CD-ROM Test and see if the test completes successfully.<br />
3 Follow the instructions in the message window.<br />
If an error occurs, reconnect the connector on the system board.<br />
If the error still remains:<br />
4 Reconnect the external optical drive to a USB jack.<br />
5 Replace the external optical drive.<br />
6 Replace the system board.<br />
Testing the keyboard or <strong>au</strong>xiliary input device<br />
If the internal keyboard does not work or an unexpected character appears, make<br />
sure that the flexible cable extending from the keyboard is correctly seated in the<br />
connector on the system board. If the keyboard cable is connected correctly, run<br />
the Keyboard Test.<br />
Important<br />
Disconnect any external keyboards before testing the built-in keyboard.<br />
If the tests detect a keyboard problem, do the following one at a <strong>tim</strong>e.<br />
To correct the problem:<br />
1 Reconnect the keyboard cable to the system board.<br />
2 Replace the keyboard.<br />
3 Replace the system board.<br />
Important<br />
Do not replace a non-defective FRU.<br />
The following <strong>au</strong>xiliary input devices are supported by this notebook:<br />
• Numeric keypad<br />
• External keyboard<br />
If any of these devices do not work, reconnect the cable connector and repeat<br />
the failing operation.<br />
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