This is a good quality scan of the service manual which includes an assembly diagram, block diagram, schematic, and parts list. Exactly what is needed to repair my KR-V55R receiver.
Text excerpt from page 113 (click to view)
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Transition of the Ofs voltage during adjustment of VOL OFFSET_min
A
Example: Initial value of the set Ofs: 33 V Tentative set value of Ofs (Ofs set value for the panel inspection): 35 V VOL OFFSET_min1 (pale purpel): 19 V VOL OFFSET_min2 (light blue): 17 V VOL OFFSET_min3 (violet): 15 V
Ofs voltage (V) White A luminescent spot appears. Measure the lower limit of the Ofs voltage. 36 34 32 30 28 26 24 22 20 18 16 14 12 Ofs15V A luminescent spot appears. Measure the lower limit of the Ofs voltage. A luminescent spot does not appear. The lower limit of the Ofs voltage is 15 V.
B
Full white
Ofs15V
C
Pale purple
A luminescent spot disappears.
VOL OFFSET_min1
VOL OFFSET_min2
A luminescent spot disappears.
VOL OFFSET_min3
D
� The transition process for VOL OFFSET_max is the same as the above.
