JVC RX-D Series Training Book page 61

Troubleshooting With Disconnected Q1101/1102 (2/2)
CHECK DCDC CONVERTER CONTROL SECTION
Master clock 400/420 KHz 5v p-p
200 / 210 KHZ
Add 47k
'V_out' and AC
detector; 'AMP +/-
B' shut down.
GND
V. Change 1
and 2 (low)
V. feedback
Vout_det.