Sony SA-FT3H - Block Diagram

77
SA-FT3H/WFT3/SS-CNF3H/FRF3H
SA-FT3H/WFT3/SS-CNF3H/FRF3H
2-1. BLOCK DIAGRAM
PRE AMP
IC101
J701
LINE IN
3
2
1 75
DRIVE
AMP
Q701-707
FILTER
Q101
FILTER AMP
IC103 (1/2)
PHASE AMP
IC103 (2/2)
13
SIGNAL
DETECT
Q601,602
VOLTAGE
DETECT
Q603
+12V REG
Q102
RECT
D301-304
T202
SUB TRANSFORMER
LED DRIVE
(RED)
Q608
RELAY/LED
DRIVE
Q605
SIGNAL AMP
IC601
76 76
AUTO POWER OFF DETECT
IC602
RV102
BASS BOOST
RV101
LEVEL
OVERLOAD
DETECT
Q503,504
+30V +12V
SUB+9V
+85V
-85V
+30V
-30V
-30V -12V
SUB+9V +6.2V
SP401
SPEAKER
AC OFF
DETECT
Q501
D501
SUB+9V
T1
POWER TRANSFORMER
S101
POWER SAVE
S201
POWER
D202
ON/STANDBY
(STANDBY)
(ON)
OFF
AUTO
RY901
RY501
GREEN
RED
F901
AC IN
~
SP402
SPEAKER
S102
PHASE
REVERSE
NORMAL
75 13
AMP
IC102
75 13
RECT
D401
RECT
D801-804
RELAY
DRIVE
Q502
LED DRIVE
(GREEN)
Q606,607
POWER
AMP
Q708-711
• Signal path
: LINE
-12V REG
Q103
+6.2V REG
Q604