Thank you very much for this Service Manual, it helped us a lot to repair the M-4318!
...BUT: The parts list is missing and the free parts katalog on web isn't complete, so now we don't know the part numbers of the defect parts :(
We had to build them out of a working machine, and need the numbers to reorder the missing parts now.
The table below shows which adjustments are necessary according to the unit parts and individual parts to be replaced. Make sure to perform these adjustments shown below as necessary.
8.2.2.
Before connecting the USB Cable
(PV-GS80P/PV-GS80PC) When connecting the USB Cable, remove the USB Sheet from the rear with a screwdriver, etc.
Note: Install the USB Sheet after finished the electrical adjustment.