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.
Complete original Service Manual in good (scan) quality!
Text excerpt from page 33 (click to view)
5-2. Wiring the W-LAN Cable
* The MS02 PWA ANTENNA is installed also in the models without Wireless LAN. Refer to the instruction below to see how to wire the CABLE.