Samsung SCX-8030ND Series - Other Errors

7.Trouble
s
7.4 Other errors
7.4.1 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 sup
p
Check if power is supplied to engine controlle
r
- CN4 : Pin No.9,12 , Check the voltage by
D
- U2 : Pin No.2 , Check the voltage by DVM
.
Replace the SMPS board.
No : Replace the OPE board.
Service Manual
SCX-8030/8040 series
7-1
s
hooting
p
lied to HUB PBA.
r
.
D
VM. (Normal value : 5V)
.
(Normal value : 3.3V)
SAMSUNG ELECTRONICS
Version 0.05
30