IBM 6400 Operation Manual page 65

Checklist
If the controller's built-in diagnostic tests do
not perform according to Table 7 (coax) on
page 49 and Table 8 (twinax) on page 50.
1
Run each diagnostic and save the
diagnostic printout.
2
Check all of the installation
connections.
3
Verify that the printer's configuration is
set according to Table 3 on page 10.
When diagnostics are complete:
1
Power off the printer and wait 15
seconds
2
Set the address switch back to the
original position
3
Power on the printer and resume
normal operation
Multi–Platform Interface Feature Operation Guide
diagnostics
51