Sony SRP-P50 - Overall and Amplifier Block Diagrams

4
BLOCK DIAGRAM
OVERALL BLOCK DIAGRAM
POWER STAGE
POWER STAGE
OUTPUT
NFB
BIAS
CURRENT
SOURCE
CURRENT
MIRROR
INPUT
–
+
POWER AMPLIFIER BLOCK DIAGRAM
+
+
2
3
1
LEVEL
+
–
INPUT 1
BAL/UNBAL
PRE AMP
INPUT
LEVEL
+
–
+
–
POWER AMP
MONO +
OUTPUT 1
LEVEL
+
–
INPUT 2
BAL/UNBAL
PRE AMP
INPUT
LEVEL
+
–
+
–
POWER AMP
MONO –
OUTPUT 2
PROTECTION
CIRCUITS
PROTECTION
THERMAL
SENSOR
AC INPUT
+
GND
–
CLIP
CLIP
OPERATION
POWER
2
3
1