IBM 4247, Maintenance Information

Page: 129 / 567

Table 16. MAP 0200: 55 AFTA Errors (continued)
Step Questions/Actions Yes No
2.
Check the printhead cables.
a. Remove the printhead. See “Printhead” on
page 356.
b. Inspect the printhead flat cables for damage.
c. If the printer is a Model A00, 001 or 003 (18-needle
printhead):
v
Disconnect the 22-conductor printhead cable from
the logic board and from the printhead.
v
Check the continuity of conductors 11 and 12
from end-to-end.
d. If the printer is a Model 002 (9-needle printhead):
v
Disconnect the 26-conductor printhead cable from
the logic board and from the printhead.
v
Check the continuity of conductors 19 and 20
from end-to-end.
Inspect the contacts at the ends of the cable for
delamination and other damage.
Are the cables OK?
Go to step 3.
Install new printhead cables and
reassemble the printer.
Mount forms, and try loading
and parking forms several times.
If the error occurs again,
continue with 3.
3.
Install a new printhead. See “Printhead” on page 356.
Load and park forms several times.
Did the error occur again?
Install a new logic board. For
Model A00, see “Logic Board -
Model A00” on page 370. For
Models 001 and 002, see “Logic
Board - Models 001 and 002” on
page 378. Or “Logic Board -
Model 003” on page 366. Return the printer to service.
Chapter 1. Diagnosing Problems
129