JVC RX-D201 - AMP+;-B Switch Regulator Operation

The ‘AMP_+/-B’ switch regulator
composes three sections:
1. MOSFET switch circuit (the important parts are
Q1101/1102, D1107/1108, L1101/1102,
C1117/1118…)
2. Switch driver circuit-IC101.
3. DC-DC Converter Control Board
DC-DC
CONVERTER
CONTROL
MOSFET
DRIVE
IC101
+
MOSFET
SWITCH
Q1101/1102… _
1
3 2
AMP_B
7 CHANNEL
POWER
AMP
AMP_ +/-B
LEVEL
CONTROL
CPU IC501
SOUND
LEVEL
DETECT
POWER SUPPLY 3/5