Zesti
11-27-2017, 08:10 AM
Looking for attention of senior Bizhub techs.
Have that older and my favorite C652. It started creating digital noise like sequential lines and boxes on copies, prints and internal test prints. Tried all the adjustments first and all the internal tests like RAM were OK. The problem grew up over time and last print is attached.
I tried replacing available PH unit and drive board with no good effect. I suspected the MFP board part no. A0P0-H021 found one, received, installed but no display. The engine initializes but panel is blank, no keys responding. I tried flash the machine and it seems that the USB was detected by machine on service port as engine does not initialize but no display whatsoever.
I noticed some difference of writing on boards regarding part nos. Images attached for new and old board. Kindly shed some light on what could be wrong.382623826338265ng.
Have that older and my favorite C652. It started creating digital noise like sequential lines and boxes on copies, prints and internal test prints. Tried all the adjustments first and all the internal tests like RAM were OK. The problem grew up over time and last print is attached.
I tried replacing available PH unit and drive board with no good effect. I suspected the MFP board part no. A0P0-H021 found one, received, installed but no display. The engine initializes but panel is blank, no keys responding. I tried flash the machine and it seems that the USB was detected by machine on service port as engine does not initialize but no display whatsoever.
I noticed some difference of writing on boards regarding part nos. Images attached for new and old board. Kindly shed some light on what could be wrong.382623826338265ng.