Yamaha FSW150 Service Manual - Page 12
Block Diagram - input
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UPC - 027108928838
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YST-FSW150/ YST-FSW050 YST-FSW150/YST-FSW050 I BLOCK DIAGRAM YST-FSW150/YST-FSW050 INPUT S1 PJ1 IC1A 6S2 5 + 7 VR1 VOLUME S3 L.P.F. 6dB/oct 3 + IC1B 1 2- IC6A 3+ 1 - L.P.F. 12dB/oct IC6B 5+ 7 - H.P.F. 12dB/oct POWER AMP. +B RY1 S4 3 10 - 12 S0 2 IC3 + 9 -B A.N.IC IC2 DRIVER WOOFER + R59 0.1 SYSTEM CONTROL +10 JK1 DRIVER Q10,11 AC IN LIMITER Q5,6,7,8 RY2 POWER SW1 +B F1 T1 POWER SUPPLY D20 AC5 IC4 REGULATOR IC5 D1 -B POWER INDICATOR PROTECTION Q2,4,9,12 +15 -15 12
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1 -
2
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3
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4
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5
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6
-
7 -
8 -
9 -
10 -
11 -
12 -
13 -
14 -
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YST-FSW150/YST-FSW050
12
YST-FSW150/
YST-FSW050
■
BLOCK DIAGRAM
IC3
7
5
6
-
-
-
-
+
+
-
L.P.F.
6dB/oct
H.P.F.
12dB/oct
DRIVER
WOOFER
INPUT
PJ1
VR1
VOLUME
POWER
AMP.
RY1
PROTECTION
3
2
10
9
12
+B
-
+
-B
IC2
Q5,6,7,8
Q2,4,9,12
R59
0.1
POWER
SUPPLY
D20
D1
AC5
F1
T1
POWER
POWER
INDICATOR
SW1
+B
-B
+15
-15
IC4
IC5
REGULATOR
A.N.IC
LIMITER
+
+
Q10,11
RY2
JK1
SYSTEM CONTROL
1
3
2
S1
+10
S2
IC1A
IC6B
IC1B
DRIVER
S3
S0
S4
5
7
L.P.F.
12dB/oct
+
IC6A
3
1
AC IN
YST-FSW150/YST-FSW050