Xx-System Board Failure Service Check - Lexmark C734 Service Manual

956.xx—System board failure service check
Step Questions / actions
1 Turn the printer off, and remove the rear
frame cover. See
removal" on page
Check the cable in connector J49 for proper
connection to the system board.
1
JHVPS1
R1 JMIRR1
Is the cable seated correctly?
"Rear frame cover
4-33.
1
JBLW1
1
J49
A
Yes
Replace the system board.
See "System board
removal" on page 4-139.
No
Reseat the cable.
2-117
Diagnostic information
5026