YST-SW030/YST-SW010
A
1
2
3
4
5
6
7
8
9
B
C
D
E
F
G
H
I
J
K
L
14
SCHEMATIC DIAGRAM
YST-SW010
★
All voltages are measured with a 10M /V DC electronic volt meter.
★
Components having special characteristics are marked
s
and must be replaced
with parts having specifications equal to those originally installed.
★
Schematic diagram is subject to change without notice.
★ 電圧は、内部抵抗10MΩの電圧計で測定したものです。
★
s
印のある部品は、安全性確保部品を示しています。部品の交換が必要な場合、パーツリス
トに記載されている部品を使用してください。
★ 本回路図は標準回路図です。改良のため予告なく変更することがございます。
IC1: STK404-070
AF Power Amp
1
3
2
4
5
6
7
8
9
10
R1
R4
R5
C1
C2
D1
TR3
TR5
R3
R6
TR4
SUB
R2
TR1
TR2
TR6
TR7
TR8
1
10
STK404-070
1
9
1
9
PIN CONNECTION DIAGRAM OF TRANSISTORS, DIODES AND ICS.
2SB1642
2SD2531
2SK304
1SR139-400
1SS133
1SS176
MTZJ15.0C
MTZJ24.0B
2SA970
2SAKTA1266
2SC2240
2SCKTC3198
µ
PC4570HA
TA7317P
Anode
Cathode
E
C B
B C
E
S
G
D
RBV-402
–
+
IC3 : TA7317P
Protector
1
6
2
3
8
7
4
9
Muting
circuit
Constant voltage
power supply circuit
Schmidt
circuit
Power supply
ON/OFF
detecting circuit
Discharging
circuit
5
Substrate
Overcurrent
detecting circuit
OR circuit
±
Current voltage
detecting circuit
GND
Relay drive
circuit
IC2, 4, 5:
µ
PC4570HA
Dual OP-Amp
Vcc
Vo
1
-Vm
1
+Vm
1
V
EE
+Vm
2
-Vm
2
Vo
2
Vcc
1
2
3
4
5
6
7
8
9
+
+
-
-
1
2
0
0
0
0
0
0.1
0.1
0
-14.2
14.4
-14.2
-1.8
0
14.4
0
0
0
0
0
0
14.5
0
0
0
-14.3
0
0
0
0
0
0.1
0
0
0
0.2
0.2
0
-32.6
14.5
1.2
1.8
-1.1
-33.0
33.0
0.1
0.1
0.1
32.6
32.9
33.0
-0.7
-0.7
0
0
0
-0.7
1.1
0
1.4
3.2
23.9
1.1
0
0
-14.2
-0.2
0
0
-0.2
0
0
14.4
0
-0.3
-1.8
0
0
0
0
-30.1
33.0
14.4
30.3
15.0
15.0
0
0
-14.9
-14.9
-30.6
-14.3
AC 49.1
MAIN (3)
MAIN (1)
MAIN (10)
MAIN (6)
MAIN (7)
MAIN (6)
MAIN (2)
MAIN (2)
MAIN (9)
MAIN (4)
3
4
9
2
7
6
5
8
7
6
9
3
2
5
4
8
6
7
5
8
3
2
4
1
L, R, T, K models
WH
L=220
BE
L=180
L.P.F.
VOLUME
L.P.F.
H.P.F.
LIMITER
PROTECTION
POWER AMP.
A.N.I.C.
POWER SUPPLY
REGULATOR
INPUT
DRIVER
s10
s10
s9
C18
R93, 94
0.068/50
4.7k
0.068/50
4.7k
0.033/50
WC05070
10.0k
Summary of Contents for YST-SW030
Page 26: ...YST SW030 YST SW010 ...
