Minolta Di 620 Manual page 259

5) C004D: Power Supply Unit Cooling Fan Motor 3 M18's Failure to Turn
C004E: Power Supply Unit Cooling Fan Motor 1 M15's Failure to Turn
Power Supply Unit Cooling Fan Motor 2 M16's Failure to Turn
Relevant Electrical Parts
Power Supply Unit Cooling Fan Motor 3 M18 Master Board PWB-A
Power Supply Unit Cooling Fan Motor 2 M16
Power Supply Unit Cooling Fan Motor 1 M15
1155C32TAB
T-44