MPC 2800 power supply to a mpc3300. .compatible? DO23 DO25

[fshead]

IO f IT isn't available and you cannot check the IP address in the print driver on a computer, follow Sandmanmac's suggestion and shine your flashlight across the display.

thnx
im familiar wth what using the flashlite from fixing laptops wth bad backlight inverters or invert brds..
i have a call in to IT guy who should get back to me b4 i arrive on site.
my guess is the polymotor and or BICU brd.
i dont have more than 10 of these out there so this is my 1st time seeing this issue.
kinda wish i had researched this b4 taking the look yesterday.
i knew the lcd displays had issues and just figured it wld be a quick swap and fix..

[sandmanmac]

fix the PCB (search forum)?
i did a search mpc2800 bicu and found lots on dreaded sc202 code and what looks like my issue..
didnt see reference for fix the brd?
was this for repairing bicu or plygon motor brd?
does anyone know what goes on polgon motor?
thnx

Props go to "Polarbear" on this. I saved a copy of his findings some time ago, for my future reference:
SC202 - MP C2800_4000 - Solved.pdf

[fshead]

well i got everything running again.
turned out to be the sc202 error wth both the polymotor and BICU needing replacing.
i culd not read dead display wth flashlite and IT guy gave me the wrong ip address
but after messing around on customer laptop i found it and got the sc202 code in WIM.
THNS TO ALL.
does the new polymotor have a different part number?
thnx

[Sashko]

Props go to "Polarbear" on this. I saved a copy of his findings some time ago, for my future reference:
SC202 - MP C2800_4000 - Solved.pdf

I fix BICU board in same way.
I made a schematic diagram of BICU. This helps to understand how +24V redistribute through BICU board and what will happen if it short to ground (SC202).
SC202_Scheme.pdf
SC202_HowTo.pdf

[ruben]

well i got everything running again.
turned out to be the sc202 error wth both the polymotor and BICU needing replacing.
i culd not read dead display wth flashlite and IT guy gave me the wrong ip address
but after messing around on customer laptop i found it and got the sc202 code in WIM.
THNS TO ALL.
does the new polymotor have a different part number?
thnx

AX060396 is the new part no.

See: rd025055a.pdf

[Gift]

My understanding was that the polygon mirror motor causes the SC202, but it's the BICU that causes the blank display, hence why both are replaced at the same time. I can't see that a faulty polygon mirror motor would give you the display problem

A faulty driver IC on the polygon motor PCB can either blow a fuse-resistor on the BICU pcb or just somewhat messing with the BICU power circuit - in both cases - as a side effect - the panel remains dark. From my experience in 4 of 5 cases that little fuse on the BICU is defective.

[fshead]

AX060396 is the new part no.

See: rd025055a.pdf

thanks a bunch.