Power Supply Errors; Machine Is Not Energized At All (Pu Operation Check); Control Panel Indicators Do Not Light - Konica Minolta magicolor 2500W Service Manual

Field Service Ver. 1.0 Aug. 2006

17. Power supply errors

17.1 Machine is not energized at all (PU operation check)

Power switch
Printer control board (PRCB)
Step Check Item
Is the power source voltage being applied
1
to CN1DCPU1 on DCPU?
Are fuses (F1 and F2) on DCPU conduct-
2
ing?
Are DC24 V and DC5 V being applied to
3
PJ2PRCB on the printer control board?

17.2 Control panel indicators do not light

Image processing board (IPB)
Control panel
Step Check Item
Is the power source voltage being applied
1
to CN1DCPU1 on DCPU?
Are fuses (F1 and F2) on DCPU conduct-
2
ing?
Is PJ302PRCB on PRCB properly con-
nected?
3
Is CN12IPB on IPB properly connected?
Is CN13IPB on IPB properly connected?
Is PJ10P on control panel properly con-
4
nected?
Relevant electrical parts
DC power supply (DCPU)
Location (Electrical
component)
J-6
-
2500W: G-6
2530 DL: G-5
2550/2550DN: G-5
Relevant electrical parts
DC power supply (DCPU)
Location (Electri-
cal component)
J-6
-
2500W: G-10
2530 DL: J-9
2550/2550DN: J-9
-
17. Power supply errors
Result Action
Check wiring from
NO power outlet to PG1 to
CN1DCPU1.
Change DCPU.
NO
NO Change DCPU.
Change PRCB.
YES
Result Action
Check wiring from
NO power outlet to PG1 to
CN1DCPU1.
Change DCPU.
NO
NO Reconnect.
NO Reconnect.
Change control panel.
YES
Change IPB.
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