C1401: Backup Ram Malfunction - Konica Minolta Magicolor 8650 Service Manual

8. Trouble code
(3) Finisher control board
Exit tray home position sensor (PS9)
Lift motor clock sensor (PS17)
Lift motor (M6)
Step
Check the motor and sensor connectors for
1 proper connection, and correct as neces-
sary.
Check the connector of motor for proper
2
drive coupling, and correct as necessary.
3 PS9 I/O sensor check
4 PS17 I/O sensor check
M6 operation check when the power switch
5
is turned OFF and ON.
6 FSCB replacement
8.3.13

C1401: Backup RAM malfunction

Finisher control board (FSCB)
Step
Disconnect and then connect the power
cord. Turn OFF the power switch, wait for
1
10 sec. or more, and turn ON the power
switch.
Check the connectors for proper connec-
2
tion on the FSCB.
3 FSCB replacement
76
Confidential – for internal use only, do not distribute
Relevant electrical parts
Action
Relevant electrical parts
Action
Field Service Ver. 1.0 Nov. 2007
Finisher control board (FSCB)
WIRING DIAGRAM
Control signal
—
—
FSCB CN5FSCB-12 (ON)
FSCB CN15FSCB-6 (ON)
FSCB CN6FSCB-1 to 2
—
WIRING DIAGRAM
Control signal
—
—
—
Location
(Electrical
components)
—
—
FS-609/PK-501 I-8
FS-609/PK-501 I-6
FS-609/PK-501 C-4
—
Location
(Electrical
components)
—
—
—