IBM 6400 Maintenance Information Manual page 115

Symptom
Printer does not
complete IML
Table 5. General Symptom List
NOTE: Power-on initialization is explained on page 146.
1. Power off the printer. Remove the paper guide or pedestal top
cover. Check that all cables are connected to the CMX controller
board. Reseat all cable connectors on the CMX controller board,
especially connectors P106 and P107.
2. If the printer has the coax/twinax expansion board, verify that the
correct microcode is loaded in the machine. If the printer does
not have the coax/twinax expansion board, go to step 6.
Download CT emulation software.
3. Power off the printer. Check that the user has enough flash
memory installed to handle his emulation software. (See Figure
35 on page 220 and the Boot Diagnostics Menu on page 137.)
Install flash memory and download emulation software.
4. Check the coax/twinax adapter connection to the CMX controller
board. Make sure that J111 is correctly seated between the
CMX controller board and the coax/twinax expansion board.
5. Power up the printer. If the printer does not successfully
complete IML, replace the coax/twinax expansion board.
6. Power up the printer. If the printer does not successfully
complete IML, replace the power supply board.
7. Power up the printer. If the printer does not successfully
complete IML, replace the CMX controller board.
General Symptom List
Corrective Action
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