Ic Block Diagrams - Sony MDR-IF540R Service Manual

4-8. IC BLOCK DIAGRAMS

IC2 NJM2190V(TE2)
IC3 LA4533M-TE-L
POWER SWITCH 1
IN-1 2
3
PRE-GND
IN-2 4
5
REF
16 15 14 13 12
–
EXT
FILTER
+
MODE
CONTROL
1 2 3 4 5
POWER MUTE
10
SWITCH CIRCUIT
AMP 1
AMP 2
BIAS
11 10 9
BYPASS
SRS
BIAS
SRS
BYPASS
6 7 8
MUTE SWITCH
9 OUT-1
8
POWER GND
7 OUT-2
6
VCC
MDR-IF540R
23