Samsung CLX-9252 Series Service Manual page 451

7.5 Other errors
7.5.1 OPE problem
● Symptom
The LCD panel does not display anything on.
● Possible cause
1. Power is not supplied to OPE.
2. OPE is defective.
● Troubleshooting method :
1. Is power supplied to OPE?
Yes : If there is any problem, check if power is supp
Check if power is supplied to engine controller
- CN4 : Pin No.9,12 , Check the voltage by
- U2 : Pin No.2 , Check the voltage by DVM
Replace the SMPS board.
No : Replace the OPE board.
Service Manual
7. Troubles shooting
plied to HUB PBA.
r.
y DVM. (Normal value : 5V)
M. (Normal value : 3.3V)
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