
FrameMaker Ver.5.5E(PC) Di151 TROUBLESHOOTING
00.03.10
T-17
(8)
Power Failure
• Power failure
Relevant Electrical Parts
Power Supply Board PU1
Power Switch S1
Upper Unit Interlock Switch S2
Control Board PWB-I
Master Board PWB-A
Step
Check
Result
Action
1
No power is supplied when the Power Switch is
turned ON.
Blown Fuse 1 of the Power Supply Board.
YES
Change Fuse 1 of Power
Supply Board.
NO
Change Power Switch.
Change Power Supply
Board.
2
Only the display and Fusing Section Cooling
Fan Motor operate.
The voltage across PJ30-2 on the Power Sup-
ply Board and GND is DC24 V when the Power
Switch is turned ON.
YES
Change Upper Unit Inter-
lock Switch.
Change Control Board.
Change Master Board.
NO
Change Power Supply
Board.
3
Only the Fusing Section Cooling Fan Motor
operates.
The voltage across JP7-2/3 on the Control
Board and GND is DC5 V when the Power
Switch is turned ON.
YES
Change Control Board.
NO
Change Power Supply
Board.
4
Only the display and Scanner operate.
The voltage across PJ7A-4 on the Master
Board and GND is DC5 V when the Power
Switch is turned ON.
YES
Change Master Board.
NO
Change Power Supply
Board.
PJ7A-1 (DC24V IN)
PJ7A-2 (GND)
PJ7A-3 (GND)
PJ7A-4 (DC5V)
S2
PWB-I
JP7-1 (DC24V IN)
JP7-2 (DC5V)
JP7-3 (DC5V)
JP7-4 (DC15V)
JP7-5 (DC-9V)
JP7-6 (GND)
JP7-7 (GND)
JP7-8 (DC5V REM/SLP)
JP7-9 (DC24V REM/SLP)
PJ30-2(DC24V OUT)
ST2
ST1
PU1
S1
1
2
L
N
L
N
G
GND
Plug
in
PJ31-1 (DC24V)
PJ31-3 (DC15V)
PJ31-4 (DC15V)
PJ31-5 (DC-9V)
PJ31-6 (DC-9V)
PJ31-7 (GND)
PJ31-8 (GND)
PJ32-1 (DC5V)
PJ32-2 (DC5V)
PJ32-3 (DC5V)
PJ32-4 (GND)
PJ32-5 (GND)
PJ32-6 (DC5V REM/SLP)
PJ32-7 (DC24V REM/SLP)
PWB-A
PJ17A-2 (DC15V IN)
PJ17A-1 (DC-9V IN)
4007C12TAC