C8302: Cooling Fan Failure - Olivetti d-Color MF651 Service Manual

Field Service Ver. 2.0 Jul. 2009

19.5.165 C8302: Cooling fan failure

Cooling fan (FM1)
Step
1 Check the connector of FM1 for proper
connection and correct as necessary.
2 Check the fan for possible overload and
correct as necessary.
3 FM1 operation check
4 Change FM1
5 DFCB F7 conduction check
6 Change DFCB
19.5.166 C8401: EEPROM failure
DF control board (DFCB)
Step
1 Disconnect and then connect the power
cord. Turn OFF the main power switch, wait
for 10 sec. or more, and turn ON the main
power switch.
2 Rewrite the firmware.
3 Change DFCB
Y110571-1
Relevant parts
Action
Relevant parts
Action
Service Manual
DF control board (DFCB)
WIRING DIAGRAM
Control signal
—
—
DFCB PJ7-1 to 3
—
—
—
WIRING DIAGRAM
Control signal
—
—
—
19. TROUBLE CODE
Location (Electri-
cal component)
—
—
DF-618 I-2 to 3
—
—
—
Location (Electri-
cal component)
—
—
—
825