Schematic Diagram - Yamaha YST-SW1500 Service Manual

A B

SCHEMATIC DIAGRAM

1
0 2
1
0 3 0
8
11.7
2
MUTING
0
0
0
3
0
0
0
7.9
3.9
3 1
4 3.9
3.9
4
5
6.1
AC
5.8
0
AC 6.1
16.2
6
7.9
0 15.7 13.1
REGULATOR
0
7.9
134.1
135.0
7
0
134.7
8 NOTICE
INLET
The CPU B version must be used with the power P.C.B. C version.
The CPU C version must be used with the power P.C.B. D or later
version.
Using the CPU with the P.C.B. of other than versions will hinder
normal operation.
POWER P.C.B. C version SERIAL NO. : I015012WY~I041803YO
POWER P.C.B. D version SERIAL NO. : I041813ZP~
9
C D E
L.P.F.
0 6
7
0 5 0
4
-11.9
11.7
0 2 8
1
3 0 6
7
0
5 4
-11.9 0.7
3.3
2.6
3.2 0
B.P.F.
11.7
0 2
8
1
3
0
0
H.P.F.
0 3
2
H.P.F.
1
0 4
0 6 11.8
7
0 5 0
4
-11.9
PHASE
SELECT
MUSIC SENSOR
2
3.9 7 8 4.5
0
3.9
5
3.9 6
0
0
REGULATOR
12.3 5.6
0.6
12.4 12.3 7.9
DRIVER
0
13.1
13.7
10.0
0.6
13.1
P.W.M
5.4
0 13.2
0
0
-0.6 0
0.2
0
0.2
0.7 9.8
0 0.7
0.2
0.7
0
0.1
0.1
0 0
0.1
135.0
133.8
AC
235.5
135.0
270.1
AC
270.1
136.0
SWITCHING
139.7 139.6
POWER
SUPPLY
135.2
AC
34.1
135.2
5.1 5.0
5.0
0
7
注意
CPU BバージョンはPOWER P.C.B.のCバージョンにのみ使用可能です。
CPU CバージョンはPOWER P.C.B.のDバージョン以降にのみ使用可能で
す。
CPUを適合外のP.C.B.バージョンに使用した場合、正常に動作しません。
POWER P.C.B. Cバージョン 製造番号 : I015012WY∼I041803YO
POWER P.C.B. Dバージョン 製造番号 : I041813ZP∼
F G
PRE DRIVE
118.0
117.4
117.3 117.4
116.8
116.8 116.8
0.7 3.5
-11.8
0 6
5
8
7
0
0
-2.5
0 0
0
0 0
0.7 0.7
0.2
-0.1
-117.0
-116.9
LIMITER
0 0
0 0
0.1 0
-3.0
0.1 -117.3
-11.9 0 11.7
-117.0
-117.3
-116.9
-116.3 -116.3
-116.8
0.1 0.1
-117.9
-116.3
0
0.1 0.1
0.1 0.1
11.7 0.8
0.8
0.7
A.N.I.C
0
11.7 0 0
0
4 1
2 7
8
0 0 7
8 0 0 4
0 3 0 -0.3 0
5
0 6 0
5
0 6 0
-11.9
3
-11.9
0.7 1.1
13.1
139.7 VOLUME
147.4
147.4
135.2
13.1
0
5.1
H.P.F.
0 11.7
8
0
7 9
2
0
4
0 5
6 0
0 3
-11.9
HIGH CUT
5 HIGH CUT
0
11.7
8 0
4
7 9
2
0
0
5 3
6 0
-11.9 0
L.P.F. L.P.F.
6
# All voltages are measured with a 10MΩ/V DC electric 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.
H I
POWER DRIVE
118.1
118.1
117.6
118.0 117.6
118.0
5.7 117.6
4.3
5.1 4.2 4.2 118.1 4.2
5.1
117.6
5.7
5.1 4.7 4.2 4.2
3.0 4.2 4.2
3.5
2.4
3.0 2.4
3.0
4.1
0.1
118.1
2.4 3
3.0 2.4
3.6
117.9
0.1
0.1
-0.6
-3.0
-0.1
-0.1
-1.9
-2.5 -1.9
4
-2.5 -0.1 -3.6
-1.9
-2.5 -1.9
-3.7
-2.5
-3.0 -3.6
-4.5 -4.2
-3.6
-3.6
-4.5 -118.0
-4.5 -4.2 -118.0
-5.1
-118.1
-4.2 -3.6
-3.7
-118.0
-5.1
-178.8
-118.0
-118.1 -118.0
DC 30mV to 150mV
-118.0
PROTECTION
5.6 5.0 4.5
5.5
5.5
0
0.7
5.5
0.4
5.5
0
0
5.5
-1.5 0
0
12.4 1.1
11.7
1
2
0
-11.9
11.8 -11.9
0 0
16.1 -16.1
118.1 -118.1 16.1 -16.0
0 0 0 0
0 0 0 0
POWER SUPPLY
POWER (2) F6
POWER (1) F7 POWER (1) F7
0 0.5 0 0.5
2
µ-COM
4.9 5.5
A
1
B
0
0.6
0
D Version
2
Point 7 TP3 and TP4
µ-COM
4.9 5.5
A
1
B
0
0.6
0
C Version
J K L
YST-SW1500
Point 1 D55 and D54
A D55
118.1
B D54
4.2
4.2 0
0
4.2
POWER ON POWER OFF
(Connect the power cord) (Disconnect the power cord)
-3.6 0 Point 2 Pin 9 of IC12
-3.6 0
-3.6
-118.0
Point 3 D38
11.8
0
-0.1
0
-11.8
-8.0
-0.6
0
-11.2
0
0
Point 4 D35
6.5
5.1
6.5
5.1
6.5
5.1
0.8
0.1
0.1
0.8
0.7
0
0 1.9
0.4
1.9
0.2
Point 5 W4C of T3
0.9
0.9
0 1.9
1.9 1.9
0.1 1.7
0.7
0 1.9
1.9 1.9
11.8 6.5
0
4.9 REMOTE
4.9
CONTROL
SENSOR
0 0
0 0
Point 6 W5C of T3
23