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