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 80 (click to view)
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7.1.3 On Discharge of the Capacitor
A
If the power voltage of the capacitor (C105) in the SW POWER SUPPLY Assy is high (about 11 V) even one minute after the power is turned off. The voltage will be no danger of electric shock.
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SW POWER SUPPLY ASSY
SIDE A
C
C105
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7.1.4 CLEANING
Before shipping out the product, be sure to clean the following positions by using the prescribed cleaning tools: Position to be cleaned
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Cleaning tools Cleaning liquid : GEM1004 Cleaning paper : GED-008