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Electrical Component Defects
M052/M053/M054 6-32 SM
6.2 ELECTRICAL COMPONENT DEFECTS
6.2.1 BLOWN FUSE CONDITIONS
Power Supply Unit
Fuse
Rating
Symptom when turning on the main switch
120V
FU101 15A/250V
No response. (5V power to the PSU is not
supplied.)
FU102 10A/250V
No response. (5V power to the PSU is not
supplied.)
FU201 10A/250V
24V power to the BICU is not supplied. "Cover
Open" message is displayed even if the cover is
closed.
FU202 10A/250V
24V power to the BICU is not supplied. The power
to the finisher or optional PFU cannot be supplied.
FU203 10A/250V
24V and 12V power to the BICU are not supplied.
SC may be issued.
FU208 5A/250V 5V power to the BICU is not supplied.
For continued protection against risk of fire, replace only with same type and rating of
fuse.