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.
Great manual, thank you, sony kp46s3 service manual perfectly, i am very happy.
Text excerpt from page 14 (click to view)
IC DESCRIPTION-1/3 (CXA2523AR)-2/2
Pin No. 42 43 44 45 46 47 48 Pin Name COMPP ADDC OPO OPN RFO MORFI MORFO I/O I I/O O I O I O Description User comparator non-inverted input pin. Capacitor connection pin for ADIP amplifier on return circuit. Not used. Non-inverted input pin for user operational amplifier. RF amplifier output pin. Check point for eye pattern. Input pin where Groove RF signal is AC coupled. Output pin for Groove RF signal.