IBM 2621421 Hardware Maintenance Manual - Page 125

Modem Board Check, Replace the CD-ROM/DVD-ROM drive.

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If an error occurs, reconnect the connector on the system 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 system 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 135). 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 system board. ThinkPad i Series 1400 (Part II) 117

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If an error occurs, reconnect the connector on the system
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 system 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
135).
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 system board.
ThinkPad i Series 1400 (Part II)
117