Samsung SF6500 Service Manual page 110

7-4-22 Second Paper Cassette (Option)
MALFUNCTION ON PAPER FEEDING
START
Samsung Electronics
Y
Motor
driving ?
N
Measure voltage on
the 2'nd cassette b'd
(CN1-1)
N
+5V ?
Y
Check SCF-START
on the 2'nd cassette
b'd (CN1-3)
N
Logic 'L' ?
Y
24V
Check
0V
motor pulse (CN2-1.2.3.4)
in the 2'nd cassette b'd
N
Normal ?
Y
Replace motor ass'y
Maintenance & Troubleshooting
Check SCF-
CLUTCH on the 2'nd
cassette b'd (CN2-6)
Y
0V ?
N
Replace 2'nd
cassette b'd
Check harness and
replace harness
Replace main b'd
Replace 2'nd
cassette b'd
END
Replace solenoid
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