IBM 6400 series Maintenance Manual page 74

013 ACTIVATE LOST
1. The printer detects a twinax protocol communication error and reports the error.
Power off the printer. Disconnect the AC power cord from the printer. Check the
twinax host data cable and twinax I/O cable connection at the CT board.
Reseat the twinax host data cable connection and the twinax I/O cable
connection at the CT board.
2. Disconnect the twinax auto-termination cable from the printer. Test the cable for
the resistances shown on page 321.
If resistances are not correct, replace the twinax auto-termination cable.
3. Connect the power cord to the printer. Power on the printer. Send a print job to
the printer.
If the message appears, replace the twinax cable.
4. Send a print job to the printer.
If the message appears, go to Communications Failures, page 133.
014 INVALID ACTIVATE
1. The printer detects a twinax protocol communications error and reports the error.
Power off the printer. Disconnect the AC power cord from the printer. Check the
twinax host data cable and twinax I/O cable connection at the CT board.
Reseat the twinax host data cable connection and the twinax I/O cable
connection at the CT board.
2. Disconnect the twinax auto-termination cable from the printer or from the last
device on this twinax port. Test the cable for the resistances shown on page 321.
If resistances are not correct, replace the twinax auto-termination cable.
3. Connect the power cord to the printer. Power on the printer. Send a print job to
the printer.
If the message appears, replace the twinax cable.
4. Send a print job to the printer.
If the message appears, go to Communications Failures, page 133.
74 Troubleshooting