Olivetti DF-790 Service Manual page 75

Code Contents
8410 Punch slide motor error 1
The punch slide sensor won't
turn On when home position
has been moved by 30 mm.
8420 Punch slide motor error 2
In detection of paper edges,
the paper edge cannot be
detected in 30 mm move.
Y113480-7
Causes
Defective connec- Reinsert the connector. Also check for conti-
tor cable or poor nuity within the connector cable. If none,
contact in the con- replace the cable.
nector (4000-sheet Punch slide motor and punch PWB (YC3)
finisher). Punch slide sensor and punch PWB (YC6)
Punch PWB (YC1) and DF main PWB (YC7)
Defective connec- Reinsert the connector. Also check for conti-
tor cable or poor nuity within the connector cable. If none,
contact in the con- replace the cable.
nector (1000-sheet Punch slide motor and punch PWB (YC3)
finisher). Punch slide sensor and punch PWB (YC6)
Punch PWB (YC1) and DF main PWB (YC8)
Defective slide Replace the punch slide sensor.
sensor.
Defective punch Replace the punch slide motor.
slide motor.
Defective PWB. Replace the punch PWB or DF main PWB
and check for correct operation.
(see page 1-5-2)
Defective connec- Reinsert the connector. Also check for conti-
tor cable or poor nuity within the connector cable. If none,
contact in the con- replace the cable.
nector (4000-sheet Punch slide motor and punch PWB (YC3)
finisher). Punch PWB (YC1) and DF main PWB (YC7)
Defective connec- Reinsert the connector. Also check for conti-
tor cable or poor nuity within the connector cable. If none,
contact in the con- replace the cable.
nector (1000-sheet Punch slide motor and punch PWB (YC3)
finisher). Punch PWB (YC1) and DF main PWB (YC8)
Defective punch Replace the punch slide motor.
slide motor.
Defective PWB. Replace the punch PWB or DF main PWB
and check for correct operation.
(see page 1-5-2)
1-4-22
3NB/3ND/3N0/3NK
Check procedures/
corrective measures
Sevice Manual