Help needed on Ricoh Sc 601 for MP9000

[Pickup Finger]

we just receive a Mp9000 with SC 601 after start up, we changed control unit, and all the I.C board at teh back of machine, as well as the I.C board under the scan glass. could there a damage in the wiring system , or we are just looking at the wrong place?

[D_L_P]

Is this a new install?

Communication error between BCU and MCU

Check Fuse 002 on PSU A, or possible bad PSU.

[Pickup Finger]

yes, this is a new install

Does PSU stand for power supply unit?

[D_L_P]

Yes that's the power supply unit.

Also, I don't know where the copier is located, but its best to have a dedicated 208v 20A power source. It's even better if you can have separate sources for main engine and finishing options.