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Maintenance & Troubleshooting
Samsung Electronics
7-8
Y
Y
Y
Y
Y
Y
Y
Y
N
N
N
N
N
N
N
N
Start
END
'DOCUMENT
READY' displayed ?
Key in ?
Document fed ?
Normal?
Logic 'H'?
Document fed?
+24 V?
Check the OPE
MICOM
Check LCD display
when document
is loading
Replace the
OPE board
Replace mother
b'd
Check
motor pulse (P1-9,
10, 11, 12) in the
main board
5V
0V
Check +24V motor
enable
(P2-27) in
the main board
Replace the
main b'd
Replace the
motor ass'y
Replace the
scan b'd
Check +24V from
P19, 20 of CN7 in
the scan b'd
7-4-4 Malfunction on Document Feeding