Block Diagram - Sony SA-WP780 Service Manual

1-1. BLOCK DIAGRAM

J101 IC202 (1/2)
(AUDIO IN)
BUFFER
RV801
(VOL)
IC203 (1/2)
AMP
IC203 (2/2)
AMP
+V
-V
SA-WP780
IC202 (2/2)
AMP
Q301, Q311
CURRENT REGULATOR
Q302, Q304
PRE DRIVE
Q303, Q305
CURRENT MIRROR
Q102
+V REG
Q103
-V REG
Q307 - Q310
AMP
Q731
SWITCH
D505
IC500
PROTECTION
Q505
LOAD
1
OVER SWITCH
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-WP780
F901
AC
IN
F900
S2
VOLTAGE
F902
SELECTOR
E51
Signal Path
: AUDIO