Block Diagram - Yamaha YST-SW515 Service Manual

A B
YST-SW515
Q Q
3 7 6 3 1 5 1 5 0
1
I BLOCK DIAGRAM
+
L
IC11A
3 IC11B
1 6
–
5
2
2
INPUT 1
–
L.P.F.
6dB/oct
R
+
+
3
L
–
OUTPUT
–
R
+
T E
L 1 3 9 4 2 2 9 6 5 1 3
AUTO STANDBY
4
L
INPUT 2
R
5
6
w w w
7
10
C D
VR1
SW1
VOLUME
PHASE
SELECT
IC10A
7
IC7A
7 8 6 IC7B
6 +
8 4
7 +
3
H.P.F.
L.P.F.
12dB/oct 12dB/oct
HIGH CUT
VR2
8
OFF
4
L 3
TIMER
R252
IC201
H
6
7
SW2
MUSIC
+
SENSOR
C227
OFF
IC4
Q205
L
AUTO POWER
H
ON/OFF CIRCUIT
x a o
. i
E http://www.xiaoyu163.com F
PRE DRIVE
Q2—10 POWER DRIVE
Q28, 29 Q16A/C, 26A/C
B.P .F.
Q201—204
–
IC10B
2 4
+ 2
3
+
B.A.S.S.
SELECT
SW3
A.N.I.C
LIMITER
Q18—21
D6, 14, 33, 34
Q37, 38
D36
Q Q
3 7
IC6
+12
–12 IC1
Q209
REGULATOR REGULATOR
IC202
STANDBY/ON
D202
D9
SW4
(R, T, K models only)
u 1 6 3
y
D201
Q206
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G H
2 4
8 9 9
+B
DRIVER
Q1C, 17C, 24A
PS AMP
Q27, 31
RY1
Q1A, 17A, 24C
PS AMP
Q30, 32
–B
IC8
0.1
Q100~102
PROTECTION
6 3 1 5 1 5 0 8 9
POWER SUPPLY
D1
+B
–B
POWER SUPPLY
RY2
D2
F1
SUB
POWER SUPPLY
D11
T1
Q207, 208
D203
m
c o
.
I J
2
8 9 9
2 4 9 8 2 9 9
POWER
SW5