Good complete Service-Manual (SONY PVM6041QM)
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Text excerpt from page 17 (click to view)
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 four 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 screws Z that retain the power amp and supply PCB and then remove the assembly. 8. Remove the clamp of AC power cord from the chassis. 9. Remove four screws that retain the power trans PCB and then remove the assembly.
Fuse (F952) T1.6AL 250V Fuse (F981) T1AL 250V X
Clamp YY Fig.30 Fig.29 Power amp and supply PCB Rear panel