Block Diagram - Sony SA-WP785 Service Manual

1-1. BLOCK DIAGRAM

J101
(AUDIO IN)
RV801
(VOL)
+V
-V
SA-WP785
IC202 (1/2) IC202 (2/2)
BUFFER AMP
IC203 (1/2)
CURRENT REGULATOR
AMP
IC203 (2/2)
AMP
CURRENT MIRROR
Q102
+V REG
Q103
-V REG
Q301, Q311
Q302, Q304 Q307 - Q310
PRE DRIVE AMP
Q303, Q305
Q731
SWITCH
D505
IC500
PROTECTION
LOAD Q505
1
SWITCH
OVER
DRIVER
6
RELAY
D504
OFF
4
AC
5 5
RY301
RELAY
SP1
(SPEAKER)
D901
(POWER)
T1
D402
POWER
RECT
TRANSFORMER
+B
-B
D801 - D804
RECT
+V
SA-WP785
S901
(POWER)
F901
AC
IN
Signal Path
: AUDIO