Abnormally High Fuser Ih Pwb Temperature 1/2; Fuser Ih Output Over-Current Error; Fuser Ih Input Over-Current Error; Fuser Ih Low Electric Power Error - Kyocera FS-C8600DN Service Manual

Code Contents
6730 Abnormally high fuser IH
PWB temperature 1
The input detect temperature
is greater than 105°C/221 °F.
6740 Abnormally high fuser IH
PWB temperature 2
The input detect temperature
is greater than 105°C/221 °F.
6750 Fuser IH output over-cur-
rent error
The output current is greater
than 90A for 10 ms in succes-
sion.
6760 Fuser IH input over-current
error
The input current is greater
than 20A(100V/120V),
10A(200V) for 100 ms in suc-
cession.
6770 Fuser IH low electric power
error
The preset power is less than
0.6 times of it for 120 ms in
succession.
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. Fuser IH PWB (YC4) and engine PWB
(YC26)
Defective fuser IH Replace the fuser IH PWB and check for
PWB. correct operation.
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation (see page 1-5-49).
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. Fuser IH PWB (YC4) and engine PWB
(YC26)
Defective fuser IH Replace the fuser IH PWB and check for
PWB. correct operation.
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation (see page 1-5-49).
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. Fuser IH PWB (YC4) and engine PWB
(YC26)
Defective fuser IH Replace the fuser IH PWB and check for
PWB. correct operation.
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation (see page 1-5-49).
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. Fuser IH PWB (YC4) and engine PWB
(YC26)
Defective fuser IH Replace the fuser IH PWB and check for
PWB. correct operation.
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation (see page 1-5-49).
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. Fuser IH PWB (YC4) and engine PWB
(YC26)
Defective fuser IH Replace the fuser IH PWB and check for
PWB. correct operation.
Defective engine Replace the engine PWB and check for cor-
PWB. rect operation (see page 1-5-49).
1-4-56
Check procedures/
corrective measures
2MN/2N1