Troubleshooting; Malfunction Code; Solution; C0B80: Shift Motor Malfunction - Konica Minolta BIZHUB 163 Service Manual

Field Service Ver. 1.0 Apr. 2007

Troubleshooting

4.

Malfunction code

4.1

Solution

4.1.1

C0B80: Shift motor malfunction

A. Detection timing
Trouble code
• The home sensor (PS1) is LOW at a timing immediately before the shift motor
C0B80
• The home sensor (PS1) is LOW after the lapse of a given period of time after
B. Action
Shift motor (M1)
Home sensor (PS1)
Step
Check PS1 connectors for proper connec-
1
tion and correct as necessary.
Check M1 connectors for proper connec-
2
tion and correct as necessary.
Check M1 for correct drive coupling and
3
correct as necessary.
4 M1 operation check
5 PS1 sensor check
6 Change SFDB.
7 Change MFPB.
(M1) starts turning backward.
the shift motor (M1) has started turning backward.
Relevant Electrical Components
Operations
Description
SF drive board (SFDB)
MFP board (MFPB)
WIRING DIAGRAM
Control signal
—
—
—
SFDB PJ2SFDB-1 to 4
SFDB PJ3SFDB-3 (ON)
—
—
4. Malfunction code
Location
(Electrical com-
ponents)
—
—
—
K to L-4
K to L-4 to 5
—
—
9