No Lcd Operation - Oki OKIOFFICE44 Service Manual

7.1.2

No LCD Operation

Start
TIME on LCD?
Yes
Return to section 7.1.1
Troubleshooting
No
AC Power Cord plugged in?
Yes
+5V SUB at Pin 1
of CN7 (R44)?
Yes
+5V SUB at Pin 6 and 7 of
CN1 (OPE UNIT)?
No
Check R44 board and
the cable between R44
and OPE (O4W) boards.
NOTE: Perform this action before
replacing the OPE Panel unit
or the R44 Board
7 - 4
No
Properly connect the AC
power cord.
No
Check SPSU, R44
boards and their connectors.
Yes
Replace OPE (O4W).
Solved?
No
Replace R44
Solved?
No
Service Manual, P/N 59276801
Yes
Yes
Return to section 7.1.1
OKIOFFICE 44