IBM 2621421 Hardware Maintenance Manual - Page 39

Modem Board Check, If an error occurs with the internal modem, do

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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 drive cable. 2. Replace the CD-ROM drive cable. 3. Replace the CD-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 PQA program (please refer to "Running the PQA Diagnostics Program" on page 49). 2. Follow the instructions on the screen to complete the test. 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 I) 31

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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 drive cable.
2.
Replace the CD-ROM drive cable.
3.
Replace the CD-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 PQA
program (please refer to “Running the PQA Diagnos-
tics Program” on page
49).
2.
Follow the instructions on the screen to complete the
test.
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 I)
31