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If an error occurs, reconnect the connector on the planar
board.
If the error still remains:
1. Reconnect the CD-ROM/DVD-ROM drive cable.
2. Replace the CD-ROM/DVD-ROM drive cable.
3. Replace the CD-ROM/DVD-ROM drive.
4. Replace the planar board.
Modem Board Check
Do the following to isolate the problem to the system
internal modem:
1. Boot from the diagnostics diskette and start the PC
Doctor program (please refer to “Running the PC
Doctor Diagnostics Program” on page 29).
2. Select Diagnostics.
3. Select Other Devices.
4. Select Modem Loopback Test and Modem
Dialtone/DTMF Test.
5. Follow the instructions in the message window.
If an error occurs with the internal modem, do the
following:
1. Change another telephone line and test again.
2. Re-plug the telephone connector.
3. Reconnect the modem board.
4. Replace the modem connector.
5. Replace the planar board.
12 ThinkPad i Series 1400