Minolta Di450 Service Manual page 447

(4) C0045: IR Cooling Fan Motor malfunction
C0046: PH Cooling Fan Motor 1 malfunction
C0047: PH Cooling Fan Motor 2 malfunction
PH Cooling Fan Motor 2 (M19)
PH Cooling Fan Motor 1 (M22)
M22
M52
M19
Relevant Electrical Parts
IR Cooling Fan Motor (M52)
SCP Board (PWB-IC)
CN122
PJ4IC-1(DC24V)
1 3
PJ4IC-2(GND)
2 2
PJ4IC-3(M22 LD)
3 1
CN152
PJ4IC-4(DC24V)
1 3
PJ4IC-5(GND)
2 2
PJ4IC-6(M52 LD)
3 1
CN119
PJ4IC-7(DC24V)
1 3
PJ4IC-8(GND)
2 2
PJ4IC-9(M19 LD)
3 1
T-39
PWB-IC
4002C10TAA