Yamaha RX-V381 Service Manual page 97

A B C
1
MAIN 2/3
2
3
DIGITAL IN
J S R 1 1 6 5 - D
R 2 4 4
2 2
C 1 0 2
AUDIO 1 OPTICAL
A U D I O 1
0 . 1 / 1 6
R 2 5 0
8 2 0
P J 3 1 4
0 . 1 / 1 6
4 COAXIAL I C 2 I C 2
C 1 1 5 R 2 4 8
AUDIO 2 1 1 2 3 4
A U D I O 2
(CD)
1 2 0
T C 7 4 V H C U 0 4 F T ( E L
2
7
I C 2
9 8 R 2 5 1
3 . 3 K
R 2 5 2
5 6
3 . 3 K
I C 2
4 I C 2 I C 2
3 R 2 4 7 1 3 1 2 1 1 1 0
AV 1 COAXIAL A V 1
C 1 1 3 1 2 0
T C 7 4 V H C U 0 4 F T ( E L
0 . 1 / 1 6
R 2 4 9
M S P - 2 5 2 V 1 - 3 0 N I
8 2 0
D G
5
P J 1
R 2 3 3 A V 2 R
R
1 4 7 0
AV 2
A V 2
3
R 2 3 4
L A V 2 L
2 4 7 0
ANALOG IN
7 A E
6
R 2 2 8 A V 3 R
R
4 4 7 0
AV 3 A V 3
6
L R 2 2 7 A V 3 L
5 4 7 0
M S P - 2 4 4 V 1 - 0 1 N I
7
8
P R E - O U T S W
n o _ u s e
M S P - 2 4 1 V 1 - 0 1 N I
P J 5
R 2 3 5
P R E S W
2 2 0
9
SUBWOOFER
PRE OUT G
P J 4
S W G
10
D E F
Page 98 C6
Page 98 C3
to MAIN (3)_CB42 to MAIN (2)_CB46
t o M A I N ( 3 ) t o M A I N ( 2 )
( C O N N E C T ) ( C O N N E C T )
+ 3 . 3 D
A E
D G
+ 3 . 3 D
[ + 5 . 6 d B ]
R 2 7 1
A U D I O 1 _ D 3 K R 2 7 7
R 2 5 9
1 0 K
C 1 2 0 5 . 6 K C 1 3 4
D A C _ F R R 2 6 2
C 1 4 0
8
1 2 K
1 0 / 5 0 1 0 0 P ( S L ) 1 0 / 5 0
2
I C 3
1
C 1 2 6
6 8 0 P ( S L ) 3 B A 4 5 6 0 F
5 B A 4 5 6 0 F
C 1 2 7
7
D G C 1 2 1 6 8 0 P ( S L )
I C 3
D A C _ F L
C 1 3 5 C 1 4 2
6
R 2 5 7 R 2 6 5 1 0 / 5 0
1 0 / 5 0 4
5 . 6 K 1 2 K
R 2 7 4 1 0 0 P ( S L )
R 2 7 2 1 0 K
3 K
R 2 5 3
A U D I O 2 _ D
2 2
R 2 6 6 R 2 7 9
3 K 1 0 K C 1 3 7
C 1 2 2
ANALOG IN R 2 5 6 C 1 4 1
R 2 6 3 8
D A C _ S R
1 0 0 P ( S L ) 1 0 / 5 0
R 2 5 4 A V 1 _ D
5 . 6 K 1 2 K 2
1 0 / 5 0 I C 4
1
2 2 C 1 2 8
3
6 8 0 P ( S L ) B A 4 5 6 0 F
C 1 2 9 5 B A 4 5 6 0 F
6 8 0 P ( S L )
7
C 1 2 3 I C 4
D A C _ S L
C 1 4 3
4 C 1 3 8
R 2 5 8 R 2 6 7 6 1 0 / 5 0
1 0 / 5 0
5 . 6 K 1 2 K R 2 7 5
1 0 0 P ( S L )
R 2 6 8 1 0 K
3 K
R 2 7 6
R 2 7 3
3 K 1 0 K C 1 3 6
+
C 1 2 4 R 2 6 0 R 2 6 9 C 1 4 4
D A C _ C
8 1 0 / 5 0
1 0 0 P ( S L )
6
1 0 / 5 0 5 . 6 K 1 2 K I C 5
7
C 1 3 0 5
B A 4 5 6 0 F
6 8 0 P ( S L )
C 1 3 1
B A 4 5 6 0 F
3
0 . 0 4 7 / 1 0 0
1
I C 5
D A C _ S W 2
- C 1 4 5
R 2 6 1 R 2 6 4 C 1 3 9 1 0 / 5 0
C 1 2 5 4
5 . 6 K 1 0 K
1 0 / 5 0
1 0 K 6 8 0 0 P / 1 0 0
R 2 7 0 R 2 7 8
3 K
+ 7 A
0 . 1 / 1 6
C 1 3 3
0 . 1 / 1 6
C 1 3 2
G N D 2 0 1 9 1 8 1 7 1 6 1 5 1 4 1 3 1 2 1 1 1 0 9 8 7 6
2 1
N C
2 2
S W 2 I N
2 3 SELECTOR
C I N 1
2 4
and E-VOLUME
S W I N 1
2 5
S L I N 1
2 6
S R I N 1
2 7
F L I N 1
2 8
F R I N 1
2 9
Y E 9 4 8 A 0
G N D
3 0
B D 3 4 7 4 K S 2
A D L A D C L
3 1
A D R A D C R
3 2 I C 1
G N D
3 3
S U B 1 R
3 4
S U B 1 L
3 5
No replacement part available.
G N D
3 6
サービス部品供給なし
I N R 1
3 7
I N L 1
3 8
I N R 2
3 9
I N L 2
4 0
4 1 4 2 4 3 4 4 4 5 4 6 4 7 4 8 4 9 5 0 5 1 5 2 5 3 5 4 5 5 5 6 5 7 5 8 5 9 6 0
SUBWOOFER OUT
G H
S T 1
+ 1 2 A
M A I N ( 1 )
- 1 2 A
L o c a t i o n : * 1
L o c a t i o n : * * 1
L o c a t i o n : T P 2 9 2 ~ 4 8 2
- 1 . 5 d B a t t e n u a t i o n i n v o l u m e I C
P O E
Q 8 2
R 2 9 0 D A _ F R
R 3 1 7
1 0 0
1 0 K
A E
D 2 7 0 4 ( K )
C 1 5 9
V O F R R 3 0 6
1 . 2 K
1 0 / 5 0
D A _ F L
C 1 6 0 R 3 0 7
R 2 9 1 V O F L
1 0 0
1 . 2 K
1 0 / 5 0 Q 8 3
R 3 1 8
FRONT L
1 0 K
D 2 7 0 4 ( K )
P O E
P O E
Q 8 4
R 3 1 9
R 2 8 7 D A _ S R
1 0 K
1 0 0 D 2 7 0 4 ( K )
C 1 6 1 R 3 0 8
V O S R
A E
1 . 2 K
1 0 / 5 0
R 2 8 6 C 1 6 2
D A _ S L V O S L R 3 0 9
1 0 0 1 0 / 5 0 1 . 2 K
Q 8 5
R 3 2 0
SURROUND L 1 0 K
D 2 7 0 4 ( K )
P O E
P O E
Q 8 6
CENTER
R 3 2 1
1 0 K
D 2 7 0 4 ( K )
C 1 6 3 R 3 1 0
R 2 8 8 V O C
D A _ C
1 . 2 K
1 0 0 1 0 / 5 0
A E C 1 6 4
V O S W R 3 1 1
1 0 / 5 0 1 . 2 K
R 2 8 9
D A _ S W
1 0 0 Q 8 7
R 3 2 2
1 0 K
SUBWOOFER
D 2 7 0 4 ( K )
P O E
B A 4 5 6 0 F
5
V +
8 7
I C 6
6
R 3 3 0
0
C 1 7 1
n o _ u s e
A E
R 3 1 2
- 7 A
3 . 3 K C 1 6 7
1 0 0 P ( S L )
2
C 1 5 6 I C 6
V O S W
1
4
1 0 / 5 0 3 B A 4 5 6 0 F
V -
[ + 4 . 9 5 d B ]
+ 7 A + 1 2 A
5 4 3 2 1 G N D
8 0
G N D
7 9 Q 8 0
R E C L 4 C 4 4 8 8 ( S / T )
R 3 1 5
7 8
R E C R 4 1 P 2 2
7 7
R E C L 3
7 6
R E C R 3
7 5
R E C L 2
7 4
R E C R 2 P S _ P R T
7 3
R E C L 1
7 2
R E C R 1
7 1
G N D
7 0
R E C L 5
6 9
R E C R 5
6 8
C I N 2 D A _ C
6 7
S W I N 2 D A _ S W
6 6
S L I N 2 D A _ S L
6 5
S R I N 2 D A _ S R
6 4
F L I N 2 D A _ F L
R 3 1 6
6 3
F R I N 2 D A _ F R
1 P 2 2
6 2 A 1 7 0 8 ( S / T )
G N D Q 8 1
6 1
- 7 A - 1 2 A
I J K
MAIN (1)
* 4 0 0
* * 4 0
P O E
to MAIN 1/3
F R
F L
FRONT L
P O E
P O E to MAIN 1/3
S R
S L
SURROUND L IC1 : BD3474KS2
5 C H _ M T 5.1ch Sound Processor with Built-in Micro-step Volume
P O E
60
to MAIN 1/3
P O E
61
C to MAIN 1/3
62
CENTER
63
64
F o r S W - A M P
65
66
P O E
67
68
69
S W
70
71
72
73
74
Q 8 8 Q 8 9 75
D 2 7 0 4 ( K ) D 2 7 0 4 ( K )
R 3 2 6
76
1 0 K
R 3 2 7
S W _ M T 77
1 0 K
C 1 7 0 R 3 2 4 R 3 2 5
P R E S W
78
6 8 0 3 3 0
1 0 / 5 0
79
80
1
L M N
RX-V381/HTR-3069
IC2 : TC74VHCU04FT
Hex inverters
1A 1 14 VCC
1Y 2 13 6A
2A 3 12 6Y
4 11 5A
2Y
3A 5 10 5Y
3Y 6 9 4A
GND 7 8
4Y
IC3-6: BA4560F
Low noise dual operational amplifier
V OUT2 - IN2 + IN2
CC
8 7 6 5
–
Ch2
+
+
Ch1
–
1 2 3 4
OUT1 - IN1 + IN1 V
EE
59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41
40
39
38
37
Multi2
36
Sub1
Multi1
35
34
Mode Mode Mode
selector selector selector
ADC 33
Mixing
32
Gain
Front:-1.62dB
SW:-3.60dB
31
Rec
30
29
28
27
26
25
SW2 C SW1 SL SR FL FR
Volume
Volume Volume Volume Volume Volume Volume Volume +32dB -95dB
24
/0.5dB step
23
Tone Tone
22
21
Logic
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Details of colored lines
Red / full line: Power supply (+)
Red /dashed line: Power supply (-)
Orange: Signal detect
Yellow: Clock
Green: Protection detect
Brown: Reset signal
Blue: Panel key input
★ All voltages are measured with a 10M Ω /V DC electronic voltmeter.
★ Components having special characteristics are marked ⚠ and must be replaced
with parts having specifications equal to those originally installed.
★ Schematic diagram is subject to change without notice.
● 電圧は、内部抵抗 10M Ωの電圧計で測定したものです。
● ⚠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。
N O T I C E
( m o d e l ) R E S I S T O R
J J A P A N
R E M A R K S P A R T S N A M E
U U . S . A
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 )
C C A N A D A
C A R B O N F I L M R E S I S T O R ( P = 1 0 )
R G E N E R A L
M E T A L O X I D E F I L M R E S I S T O R
T C H I N A
M E T A L F I L M R E S I S T O R
K K O R E A
M E T A L P L A T E R E S I S T O R
A A U S T R A L I A
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
B B R I T I S H
C E M E N T M O L D E D R E S I S T O R
G S T A N D A R D
S E M I V A R I A B L E R E S I S T O R
L S I N G A P O R E
C H I P R E S I S T O R
E S O U T H E U R O P E
V T A I W A N
F R U S S I A N C A P A C I T O R
P L A T I N A M E R I C A R E M A R K S P A R T S N A M E
S B R A Z I L 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
H T H A I T A N T A L U M C A P A C I T O R
N O M A R K C E R A M I C C A P A C I T O R
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
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
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
P O L Y P H E N Y L E N E S U L F I D E F I L M
S
C A P A C I T O R
97