MP C6502 SC672-11

[MitchD]

I am fighting a really bad issue and I hope you can help. It’s a c6502 with SC672-11. So far I have replaced the op panel, control PCB, IPU, HDD, removed fax option, cut all wire ties on USB and data cable from panel to the IPU, new DIMMS as well.


Here is the real head scratcher, if I unplug and discharge the machine I can get the op panel to come up with no codes - but none of the hard keys work on the panel. Touch screen works just fine. If I turn the machine off and back on without unplugging it I will get a long ‘Please wait’ and then the SC672-11


I’m at a standstill here. Tech support is stumped as well. I am open to any suggestions


Thanks for any help you can provide.

[guitar9199]

This MAY be a shot in the dark, but what I would try is replacing the HDD, reflashing the firmware, and as a last resort REPLACE the harness from control panel to Main controller. You may have a bad connection somewhere in between.

...good luck. Those are definitely "Head Scratchers"!

[JDYAL]

x2 on the HDD had this happen recently, same 672-11

[copier tech]

Firmware is always the first thing to try before replacing any parts.

ALL firmware files not just a few.

[MitchD]

UPDATE:
Replaced the HDD's and both cables from OP panel to the IPU. Also tried another OP panel and made sure all firmware was current.

Still can not get the hard keys to work on the op panel. And still the issue of 672-11 if I do not unplug and discharge the machine.

I truly am lost on this one

[LNorris]

I know its not the same model, but i fought a old 7500 with this 672, it was the adf wiring harness shorting out, disconnected it and it came up. took me a week to find it.

[semi]

Try disconnecting the paper feed board,boot up with covers open,see if that works

[keithxxiii]

I know how it feels... recently had an mpc 3004 on the same problem. It turned out to be the HDD. Luckily, we give out SSDs to techs on the field to replace whenever the HDD fails.

[MIKON]

Try cleaning the dimm memory chip' contacts

[MitchD]

UPDATE:

I have tried all suggestions listed above with no luck. I ordered and installed brand new HDD's from Ricoh (ouch$$) with no change. We are pulling and replacing the machine. Customer has been understanding thus far, but its starting to wear thin.

I will continue to troubleshoot the machine in the shop and hopefully update this thread with a solution.