This document is just what I was looking for, it´s very useful, it contains adjustment procedures for the final stage of the power amp and also
has a complete wiring diagram and description of the main semiconductors used in the design.
Text excerpt from page 17 (click to view)
MX-KA6
Removing the power amp and supply PCB and the power trans PCB (See Fig. 2, 29 to 31)
Prior to performing the following procedures, remove the top cover and CD changer unit. 1. Remove four screws B from the rear panel. (Fig.3) 2. Pull the heat sink cover outward. 3. Remove four screws AA from the rear panel between the heat sink holder. 4. Remove two screws X that retain the speaker terminals and AUX terminal. 5. Remove screws YY that retains the rear panel, and then remove the rear panel. 6. Disconnect the parallel wires from the connectors FW951 on the power trans PCB. 7. Remove the clamp of AC power cord from the chassis. 8. Remove four screws AB that retain the power trans PCB and then remove the assembly.
