Service manual

T- 4 2
(6) C004E: Power Supply Unit Cooling Fan Motor 1’s failure to turn
C004F: Power Supply Unit Cooling Fan Motor 2’s failure to turn
C004E
Relevant Electrical Parts
Power Supply Unit Cooling Fan Motor 1
(M16)
Power Supply Unit Cooling Fan Motor 2
(M15)
Master Board (PWB-A)
Power Supply Board (PWB-C)
Step Check Result Action
1 Power Supply Unit Cooling Fan Motor 1 rota-
tion: the voltage across PJ3C-1 on Power Sup-
ply Board and GND is DC24V after the
malfunction has been reset.
NO Change Power Supply
Board.
2 Power Supply Unit Cooling Fan Motor 1 rota-
tion: the voltage across PJ3C-3 on Power Sup-
ply Board and GND is DC5V after the
malfunction has been reset.
YES Check motor for installa-
tion.
Change motor.
NO Change Power Supply
Board.
PWB-C
PJ3C-1 (DC24V)
PJ3C-2 (GND)
PJ3C-3 (M16 LD)
PJ6A-13(M15 LD)
PJ6A-12(GND)
PJ6A-11(DC24V)
PWB-A
M16
M15
CN115
1
2
3
3
2
1
4002C23TAA