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Yamaha A-S2100 Service Manual page 76

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A
B
C
A-S2100
INPUT 2/2
1
Note:
Precaution for handling measuring instrument
Since the speaker output of this unit is BALANCED OUT connected, the ground side
of the measuring instrument to be connected to the speaker terminal
MUST be kept in floating condition. MUST be kept in floating condition.
注意:
計測機器取り扱い上の注意
本機のスピーカー出力はBALANCED OUT接続となっていますので、スピーカー端子
に接続する計測器のアース側はフローティング状態に保つ必要があります。
2
I N P U T ( 2 )
B A L A N C E
R c h
R
3
INPUT
BAL
C H A S S I S 1
BAL L
C H A S S I S 1
L c h
L
4
5
C H A S S I S 1
6
7
INPUT (2)
8
D e s t i n a t i o n P a r t L i s t
+ - - - - - - - - + - - - - - - - - - - - - - - - + - - - - - - - - - - - - - - - + - - - - - - - - - - - - - - - + - - - - - - - - - - - - - - - + - - - - - - - - - - - - - - - + - - - - - - - - - - - - - - - + - - - - - - - - - - - - - - - + - - - - - - - - - - - - - - - +
|
s X X
|
L O C
|
J
|
+ - - - - - - - - + - - - - - - - - - - - - - - - + - - - - - - - - - - - - - - - + - - - - - - - - - - - - - - - + - - - - - - - - - - - - - - - + - - - - - - - - - - - - - - - + - - - - - - - - - - - - - - - + - - - - - - - - - - - - - - - + - - - - - - - - - - - - - - - +
|
s 9 0 1
|
C 9 3 0
|
W E 1 0 0 5 0
|
|
|
C 9 3 1
|
1 0 0 P / 6 3 0
|
|
|
C 9 3 3
|
|
|
|
C 9 3 2
|
|
+ - - - - - - - - + - - - - - - - - - - - - - - - + - - - - - - - - - - - - - - - + - - - - - - - - - - - - - - - + - - - - - - - - - - - - - - - + - - - - - - - - - - - - - - - + - - - - - - - - - - - - - - - + - - - - - - - - - - - - - - - + - - - - - - - - - - - - - - - +
9
10
76
D
E
F
Page 75
B2
Page 81
M4
to INPUT (1)_W901
to MAIN (3)_W316
W 9 0 1
M A I N ( 1 )
W 3 1 6
I N P U T ( 1 )
1 2
1 1
1 0
9
8
7
6
5
4
3
2
8
7
6
5
4
3
2
B A L _ R +
R 5 7
1 P 1 0 0
R 5 8
B A L _ R -
1 P 1 0 0
B A L _ L +
R 5 9
1 P 1 0 0
R 6 0
B A L _ L -
1 P 1 0 0
C H A S S I S 1
P N 3 3
P N 3 1
P N 3 2
n o _ u s e
n o _ u s e
W B 5 4 3 7 0
U V
|
T K A
|
B
|
G
|
L
|
W E 1 0 0 5 0
|
W E 1 0 0 9 0
|
W E 1 0 0 9 0
|
W E 1 0 0 9 0
|
W E 1 0 0 5 0
|
1 0 0 P / 6 3 0
|
2 2 0 P / 6 3 0
|
2 2 0 P / 6 3 0
|
2 2 0 P / 6 3 0
|
1 0 0 P / 6 3 0
|
|
|
|
|
|
|
|
|
|
|
G
H
3 . 0 V
-8.1V(Vceo)
-6.13V(Vceo)
-6.04V(Vceo)
3 . 1 V
Q 3 1
Q 3 3
Q 3 4
Q 3 2
+8.19V(Vceo)
+5.97V(Vceo)
+6.03V(Vceo)
R E S I S T O R
R E M A R K S
P A R T S
N A M E
S
|
N O M A R K
C A R B O N
F I L M R E S I S T O R
( P = 5 )
W E 1 0 0 5 0
|
C A R B O N
F I L M R E S I S T O R
( P = 1 0 )
1 0 0 P / 6 3 0
|
M E T A L
O X I D E F I L M R E S I S T O R
|
|
M E T A L
F I L M
R E S I S T O R
M E T A L
P L A T E R E S I S T O R
F I R E
P R O O F C A R B O N
F I L M R E S I S T O R
C E M E N T
M O L D E D R E S I S T O R
S E M I
V A R I A B L E
R E S I S T O R
C H I P R E S I S T O R
Details of colored lines
I
J
K
-8.83V(Vceo)
-6.14V(Vceo)
-8.83V(Vceo)
+8.81V(Vceo)
+6.12V(Vceo)
+8.74V(Vceo)
P O W E R _ S U B
N O T I C E
C A P A C I T O R
R E M A R K S
P A R T S
N A M E
J
U
N O
M A R K
E L E C T R O L Y T I C
C A P A C I T O R
C
T A N T A L U M
C A P A C I T O R
R
N O
M A R K
C E R A M I C
C A P A C I T O R
T
C E R A M I C
T U B U L A R
C A P A C I T O R
P O L Y E S T E R F I L M
C A P A C I T O R
K
A
P O L Y S T Y R E N E
F I L M
C A P A C I T O R
M I C A
C A P A C I T O R
B
G
P
P O L Y P R O P Y L E N E
F I L M
C A P A C I T O R
S E M I C O N D U C T I V E C E R A M I C C A P A C I T O R
L
E
V
F
P
S
H
Red / full line:
Power supply (+)
Red /dashed line:
Power supply (-)
Orange:
Signal detect
★ All voltages are measured with a 10MΩ/V DC electronic voltmeter.
Yellow:
Clock
★ Components having special characteristics are marked
Green:
Protection detect
with parts having specifications equal to those originally installed.
Brown:
Reset signal
★ Schematic diagram is subject to change without notice.
Blue:
Panel key input
L
M
N
C B 3 3
+18.4
M C + 1 8 V
-18.5
M C - 1 8 V
2
+20.8
M M + 2 0 V
Page 79
L2
3
-20.8
M M - 2 0 V
to FUNCTION (2)_W1001
4
M M M C _ A G N D
5
P H I
C B 3 4
+20.8
L I N E 1 + 2 0 V
-20.9
L I N E 1 - 2 0 V
2
Page 75
K3
L I N E 1 _ A G N D
3
to INPUT (1)_W902
L I N E 1 _ A G N D
4
X H I
P S V A 1
1
P S V A 2
M G
+5.0
+ 5 S
P R V
+18.0
L V O L + 1 8 V
Page 78
F2
-18.1
L V O L - 1 8 V
to FUNCTION (1)_CB712
+18.1
R V O L + 1 8 V
-18.1
R V O L - 1 8 V
+20.8
L I N E 2 + 2 0 V
-20.7
L I N E 2 - 2 0 V
L I N E 2 _ A G N D
1 2
W 3 1
S A N - P H
( m o d e l )
J A P A N
U . S . A
C A N A D A
G E N E R A L
C H I N A
K O R E A
A U S T R A L I A
B R I T I S H
E U R O P E
S I N G A P O R E
S O U T H E U R O P E
T A I W A N
R U S S I A N
L A T I N A M E R I C A
B R A Z I L
T H A I
● 電圧は、内部抵抗 10MΩの電圧計で測定したものです。
and must be replaced
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あります。

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