IBM 1400 (2611) manual Modem Board Check

If an error occurs, reconnect the connector on th 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 sy internal modem:

1.Boot from the diagnostics diskette and start program (please refer to “Running the PQA Diagno tics Program” on page 49).

2.Follow the instructions on the screen to complet test.

If an error occurs with the internal modem, do t 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 31(Part I)