Konica-Minolta bizhub 287

Power is not supplied to option DF-628

Relevant electrical parts

• DC power supply (DCPU)
• DF

Procedure

Step	Check item	Location	Result	Action
1	Is DC24 V being output from J21-1 on DF?	19-I	YES	Malfunction in DF-628.
2	Is DC24 V being output to CN6-1 on DCPU?	23-R	NO	Check wiring from DCPU to MFPB to DF-628.
3	Is the fuse on DCPU conducting?		YES	Replace DCPU.
			NO	Malfunction in DF-628.

Power is not supplied to option PC-113/PC-213/PC-413

Procedure

Step	Check item	Location	Result	Action
1	Is DC24 V being applied to CN2-1?	13-C to D	NO	Malfunction in cabinet.
2	Is DC24 V being output to CN5-1 on DCPU?	18-R	NO	Check wiring from DCPU to MFPB to CN3E to cabinet.
3	Is the fuse on DCPU conducting?		YES	Replace DCPU.
			NO	Malfunction in cabinet.

Power is not supplied to option FS-533/FS-534/FS-534SD

Procedure

Step	Check item	Location	Result	Action
1	Is DC24 V being applied to CN1FN-1?	18-I	NO	Malfunction in finisher.
2	Is DC24 V being output to CN6-3 on DCPU?	23-R	NO	Check wiring from DCPU to finisher.
3	Is the fuse on DCPU conducting?		YES	Replace DCPU.
			NO	Malfunction in finisher.