The Sony AV-3600 service manual was what I needed for the repair of this unit
Thanks for the good service
Dave
Text excerpt from page 12 (click to view)
PRINTED WIRING BORD
Main PWB(B1) section
Caution: COMPONENT SIDE: Parts on the component side seen from the component side are indicated. SOLDER SIDE: Parts on the solder side seen from the solder side are indicated.
No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Description EARTH(CASE) ACC N.C BACK UP N.C ILLUMI N.C RXD(COMBI TO CHG) TXD(CHG TO COMBI) SIGNAL EARTH REQ(CHG TO COMBI) DATA EARTH CHG RCH(-) CHG RCH(+) CHG LCH(-) CHG LCH(+)
15 13 11 10 9 7 5 3 1 16 14 12 8642
COMPONENT SIDE
No. A B C D E F G H I J K L M N O P
Description SAT LCH(+) SAT RCH(+) DATA EARTH BACK UP ILLUMI ACC SAT LCH(-) SAT RCH(-) SIGNAL EARTH CONT REQ1(SAT TO COMBI) TXD(SAT TO COMBI) RXD(COMBI TO SAT) REQ2(CHG TO COMBI) SOURCE CHANGE EARTH(CASE)