Yamaha YST-SW1500, Руководство по обслуживанию

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★
All voltages are measured with a 10M
Ω
/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.
Point 1 D55 and D54
POWER ON
(Connect the power cord)
POWER OFF
(Disconnect the power cord)
A D55
B D54
Point 2 Pin 9 of IC12
Point 3 D38
Point
4
D35
Point 5 W4C of T3
Point 6 W5C of T3
Point 7 TP3 and TP4
L.P.F.
MUSIC SENSOR
H.P.F.
H.P.F.
MUTING
L.P.F. L.P.F.
H.P.F.
HIGH CUT
HIGH CUT
VOLUME
µ
-COM
PHASE
SELECT
B.P.F.
PRE DRIVE POWER DRIVE
PROTECTION
POWER SUPPLY
LIMITER
A.N.I.C
REMOTE
CONTROL
SENSOR
REGULATOR
REGULATOR
SWITCHING
POWER
SUPPLY
P.W.M
DRIVER
PO
WER (2)
F
7
MAIN (1)
H5
MAIN (2)
D1
MAIN (1)
H5
MAIN (1)
I5
POWER (1) F7 POWER (1) F7
POWER (2) F6
6
8
5
9
9
2
2
7
6
8
5
7
3
4
3
4
µ
-COM
2
1
8
3
2
1
8
3
3
2
1
4
4
2
1
3
7
8
5
6
4
2
1
3
7
8
5
6
6
8
5
7
6
7
4
5
6
7
4
5
3
2
1
4
7
8
5
6
2
1
7
4
8
3 6
5
1
2
3
4
5
6
7
8
9
A B C D E F G H I J K L
23
SCHEMATIC DIAGRAM
C Version
D Version
NOTICE
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~
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〜
7
2
3
4
1
A
B
5
6
AC
235.5
AC
136.0
AC
34.1
AC
16.2
AC
5.8
12.3
6.1
6.1
0
12.4
7.9
7.9
0
0 270.1
0
15.7 13.1
0.6
0.6
0.2
12.3 7.9
5.1 13.1 5.4 13.1 0 5.4 0.2
2.1 4.9 3.8 2.2
0.1 2.6
0
0
0
0
134.7
5.6
0.7
10.0
135.0
134.1
135.0
270.1
135.2
135.2
0
139.6
5.0
139.7
5.1 5.0
135.0
133.8
0
0
0
0
0
0
0
11.7
4.8 4.5 2.5 0.9 0 1.4 0.1 0.1 0.1 0.1 0.2 1.9 4.8 3.9 4.8
1.9 0.1
0
4.8
0.6 0.8
11.7 11.7
0.1 0.1 0.5 0.8 0.6
0
4.8
0 0
2.2 2.5 4.9 4.6
0
5.2 5.1 5.1
4.9
4.6
11.7
0
-11.9
0
0
0
-11.9
0
0.5 0
0.6 0.7
11.7 11.7
0.1 0.1 0.5 0.7 0.6
0
0.5 0
4.9
0
0
5.5
0.6
2
1
A
B
4.8 4.5 2.5 0.9 0 1.4 0.1 0.1 0.1 0.1 0.2 1.9 4.8 3.9 4.8
1.9 0.1
0
4.8 4.8
0 0
2.2 2.5 4.9 4.6
0
5.2 5.1 5.1
4.9
4.6
4.9
0
0
5.5
0.6
0
0
0
4.9
0
4.9
11.8 6.5
1.9 1.9
0
0.1
1.9
0.7
1.7
1.9 1.9
0
0.2
0.4
1.9
0.9
0.9
1.9
0
0.7
5.1
1.9
0.8
0.1
0
6.5
5.1
6.5
5.1
0.1
6.5
0.8
0
0
0
11.7
0
0
0
11.7
0
0
0
2.6
0.7
0
3.2
3.3
11.8
0
0
0
11.7
0
0
0
-11.9
0
0
-1.5
0
0 0
0
11.7
0
0
5.5
5.5
5.5
4.5
11.8
-11.8
-11.2
-0.6
0
-0.1
0
0
-11.9
-11.9
-16.1
-16.0
0
0
16.1
0
0
-118.1
0
0
118.1
0
0
0 0
11.8
16.1
0
-8.0
0
0.4
0
1.1 12.4
0.7
5.0 5.6
5.5
5.5
0
0
0
0
0
-11.9
1.1 0.7
0 -0.3
0
0
-11.8
-11.9
0
0
0
0
0
0
0 0
0.1
0 0
11.7
0.8
0.7
11.7
0.8
0
0
-0.1
0.2
0.7
-117.3
-116.3
-116.3
-3.0
-116.8
-117.3
-117.9
-117.0
-116.9 -116.3
-117.0
116.8
117.4
3.5
-3.0
3.6
0.7
117.3
118.0
117.4
116.8
116.8
-2.5
0.7
-116.9
0.1
0.1
0.1
0.1
0.1
0.1 0.1
0
0
0
-11.9
-11.9
0
0
0
0
0
0
0
-11.9
0
3.9
3.9
7.9
3.9
3.9
3.9
0
0
0
3.9
4.5
0
0
0
0
0
11.7
118.0 118.0
5.7
3.0
3.0
5.1
5.1 4.2
117.6
-0.1
-1.9
118.1
117.8
117.6
4.2
4.2
117.6
4.2
2.4
2.4
2.4
3.0
3.0
0.1
2.4
4.1
0.1
-1.9 -2.5
-1.9
-4.2
-0.1
-4.5
-1.9
-3.7
-4.2
-3.6
-118.0
-178.8
-118.0
-118.1
-4.5
-5.1
-3.0
-118.0
-4.2
-2.5
-2.5
-5.1
-118.1
-4.5
-2.5
-0.1
-3.6
117.9
0.1
118.1
-0.6
4.3
117.6
118.1
118.1
4.2
4.2
4.2
118.1
4.2
4.2 0
0
-3.6
-118.0
-3.6
-118.0
-3.6
-3.6
-3.6
-3.6
-3.7
-118.0
-118.0
0
0
4.2
5.1 4.7
5.7
3.5
-0.6
0.1
0 0
0.7 1.1
0
1.3
3.0
13.7
13.1
13.2
0.7
0.2
0.2
0.1
0
0.7
139.7
13.1
147.4
135.2
13.1
0
5.1
0
0
0.1
0.1
9.8
13.1
147.4
5.4
0
0
0 -0.6
DC 30mV to 150mV
YST-SW1500
INLET