Samsung SF6500 Service Manual page 95

Maintenance & Troubleshooting
7-4-6 Malfunction on Copy
START
Y
CIS LED on?
N
See chart 7-4-5
Replace the
scan b'd
7-10
Load document in
feeder
Copy works
N
properly?
Y
1
Y
+12 V?
N
Check harness
Good?
Y
Replace the
power supply
Document fed?
N
See chart7-4-4
5V
Check
0V
CIS clock (P2-16)
in the main board
Normal?
N
Replace the main b'd
Measure
LED +12V on
scan b'd (CN 3-9)
N
Replace the
harness
Y
Press the COPY
button
Y
Replace CIS
N
Copy produced?
Y
1
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