Marantz PM64II - Diode Bridge Assembly (P801) Schematic Diagram and Component Locations (Model PM-54 II); Tape Monitor Assembly (PJ01) Schematic Diagram and Component Locations (Model PM-5411); Main Amp Assembly (P701) Schematic Diagram and Component Locations (Model PM-6411); Speaker Switch;Phone Assembly (PW51) Schematic Diagram and Component Locations (Model PM-6411)