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oommiiddaann
06-19-2014, 01:43 AM
When main power switch turns on.Lcd backlight is off.dc controller is of.red led on panel is on.red led on overal control bord is on.but machine is completely off and can not drive!
Help for that dead machine! :(

oommiiddaann
06-20-2014, 12:16 AM
a pic from back of machine when main power is on 25390

oommiiddaann
06-20-2014, 01:22 AM
thanks for your useful solution! :\

emujo
06-20-2014, 02:03 PM
Paul's offer for a service manual is a lot more useful than your picture of the back of the machine, and don't PM me anymore, if I had an answer I'd have posted it for you. Emujo

oommiiddaann
06-21-2014, 10:04 AM
i posted that pic to give better info to my question.
all active solution and field service manual that i have did not helped me.
excuse me for my pm emujo :)

CopyJunkie
06-25-2014, 06:50 PM
Product Name
https://kb.mykonicaminolta.com/img/viewdoc_tab.gif









bizhub PRO 1050e
bizhub PRO 1050eP
bizhub PRO 1050
bizhub PRO 1050P








Option
https://kb.mykonicaminolta.com/img/viewdoc_tab.gif














Description
https://kb.mykonicaminolta.com/img/viewdoc_tab.gif









No power, blank display.

















Solution
https://kb.mykonicaminolta.com/img/viewdoc_tab.gif









CAUSE: DC Power Supply 1 (DCPS1) has failed.

SOLUTION: To confirm that DC Power Supply 1 has failed, perform the following:
1. With the main and sub switches in the ON position, measure the AC voltage input to DCPS1 at CN2-1 and 2-3 by inserting one meter lead into pin 1 and the other lead into pin 3 with the meter set on AC voltage. The reading should be 208-230V AC.
2. With the meter set on DC voltage, check CN72-1 for 5V DC and CN74-1 for 24V DC.
3. If one or both of the DC voltages are missing, replace DCPS1 (p/n 56UA84512E).

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