Oki B4100 User Manual
Page 289
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40055101TH Rev.4
289 /
7.2.1
Overall Troubleshooting Flow Chart
Turn ON power switch.
TIME on LCD?
AC power switch ON?
Solved?
Yes
Solved?
Start
Retrun to section 7.2.1
No
SUB +5V at Pin 1
of CN16 (MCNT)?
No
Check SPSU, MCNT
boards and their connectors.
No
Replace MCNT
Yes
Replace 05W
Check MCNT board and
the cable between MCNT
and 05W boards.
SUB +5V at Pin 6 and 7 of
CN1 (05W)?
Yes
Yes
No
Yes
Yes
No
No
Retrun to section 7.2.1
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