The ervice manual for my 1982 Kenwood KR-1000 receiver is great! Full detail on all circuits with part number detail. I will definately be ordering more manuals for my other vintage equipment! Order was fulfilled quickly! Very efficient ordering process! Thnaks for your help! Great site!
Text excerpt from page 5 (click to view)
AC IN Reference input signal Hedaphone volume control :1kHz 300mVp-p sine wave : MAX
Distance : 1m (3.28ft)
4.Print Circuit Board
Receiver (Headphones) CHARGE P. C. BOARD
shows the B(+) power supply shows the ground shows others.