Block Diagram - Sony SA-FT1H Service Manual

2-1. BLOCK DIAGRAM

IC101 (2/2)
LINE
J101
5 7
BUFFER
LINE IN
IC601
AUDIO
3 LEVEL 7
DETECT
• Signal path
: LINE
SA-FT1H/WPFT1/SS-CNPFT1/MSPFT1/SRPFT1
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IC101 (1/2) IC102 (2/2) IC102 (1/2)
3 LPF 1 5 HPF 7 3 AMP 1
+7.8V
CURRENT
SOURCE
Q603
IC602
D600
LEVEL
BUFFER
6
Q601,602 COMPARATOR
S101
POWER SAVE
AUTO
OFF
RV101
LEVEL
IC103 (2/2)
IC103 (1/2)
5
BASS
BOOST
6 7 2 PHASE
AMP
3
PHASE
NORMAL
S103
BASS BOOST
BASS BOOST REVERSE
OFF
Q101
ON
7
+14V
-14V
+7.8V
POWER
SAVE RELAY DRIVE
SWITCH Q606
Q605
LED DRIVE
Q608
D202
ON/STANDBY
9 9
+IN
PRE POWER
1 AMP -IN AMP
Q701–707 Q708–711
S102
+B -B
OVER CURRENT
DETECT
Q731
PROTECT CONTROL
2 DC DETECT
DELAY
SWITCH 1 OVER LOAD
Q505
4 AC OFF
RECT
D801
+B +
-B -
D504
RECT
D802–805
R801
+14V REG.
Q102
R802
-14V REG.
Q103
RY901
RECT
D301–304
+7.8V +
+3.7 REG. -
+3.7V
Q604
D605
LED DRIVE
Q630
SA-FT1H/WPFT1/SS-CNPFT1/MSPFT1/SRPFT1
SP101
SPEAKER
IC500
RELAY DRIVER 6 RY501
T1
MAIN POWER
TRANSFORMER
F901
2.5A
S902
POWER
AC IN -
T202
SUB
TRANSFORMER