Yamaha RX-V385 Service Manual page 105

A B C D E
MAIN 1/3
1
2
M A I N ( 1 )
3
MAIN (1)
4
5
6
7
+ 1 2 R Y
- 1 2 R Y
8
W 2 0 0 2
12.2
+ 1 2 A
1 + 1 2 A
- 1 2 A -12.0
2 - 1 2 A
A G N D
0
3
S A N - P H
n o _ u s e
9
10
5 3 2 9 0 - 0 8 8 0
+ 1 2 A
12.2
8 + 1 2 A
A G N D 0
7
T U L T U L
6 0
11
T U E
5 0
Page 107 K7
T U R T U R
0
4
to MAIN (3)_CB272
D I S T R 0 D I S T R
3
D I S T E 0
2
D I S T L 0 D I S T L
1
C B 2 0 1
12
A G N D
13
5 3 2 9 0 - 1 6 8 0
C 2 0 0 4
A D R A D R
ANALOG IN 1 6
A D E 1 0 / 5 0
1 5
C 2 0 0 5
A D L A D L
1 4
A G N D 1 0 / 5 0
1 3
FRONT L
D A F R D A F R
1 2
A G N D
1 1
D A F L D A F L
1 0
A G N D
14
Page 107 D10 9
D A S R D A S R
8
to MAIN (2)_CB252
D A S L D A S L
7
A G N D
6
D A S W D A S W
5
D A C D A C
SURROUND L 4
A G N D
SUBWOOFER OUT 3
D A S B R D A S B R
2
D A S B L D A S B L
15 CENTER 1
C B 2 0 2
16
C B 2 0 3
V I 8 7 8 5 0
17
18 ★ All voltages are measured with a 10MΩ/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.
F G H I J K
n o _ u s e
P J 2 0 2
P H O N O
C 2 0 4 3 C 2 0 4 4
C 2 0 4 5 C 2 0 4 6
C 2 0 4 7 C 2 0 4 8
R 2 0 8 2 R 2 0 8 3
R 2 0 8 4 R 2 0 8 5
R 2 0 9 9
R 2 0 9 8
R 2 0 9 0
R 2 0 9 1
R 2 0 9 2 R 2 0 9 3
C 2 0 5 7 C 2 0 5 8
R 2 0 9 6 R 2 0 9 7
0 0
ANALOG IN
J 2 0 0 2
n o _ u s e
A V 3 R N I R 3
A V 3 L I N L 3
I N R 4
I N L 4 SELECTOR
A V 2 R I N R 5
and
A V 2 L I N L 5
P H R I N R 6
E-VOLUME
P H L I N L 6
D I S T R I N R 7
D I S T L I N L 7
I N R 8
I N L 8
A U X R I N R 9
A U X L I N L 9
I N R 1 0
M I C I N L 1 0
I N R 1 1
I N L 1 1
T U R I N R 1 2
T U L I N L 1 2
R 2 0 0 1
- 1 2 A
1 P 2 . 2
R 2 0 0 3
+ 1 2 A
1 P 2 . 2
5 1 0 4 8
M F 0 0 7 1 4
7 P 1 4 0 M M P = 2 . 0
t o M A I N ( 5 )
F L A T 7 P P = 2 . 0 m m L = 1 4 0 m m
Page 107 B10
to MAIN (2)_CB254
Details of colored lines
● 電圧は、内部抵抗 10MΩ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。
L M N O P
AV 2 AV 3
L/R L/R
n o _ u s e
M S P - 2 4 4 V 1 - 0 1 N I
P J 2 0 3
4 7 0 K R 2 0 1 8 4 7 0 K 4 7 0 K 0 0
4 7 0 K
R 2 0 1 7 R 2 0 2 1 R 2 0 2 2 R 2 0 2 5 R 2 0 2 6
C 2 0 1 2 C 2 0 1 3 C 2 0 1 4 C 2 0 1 5 C 2 0 1 6 C 2 0 1 7
2 2 0 P ( S L ) 2 2 0 P ( S L ) 2 2 0 P ( S L ) 2 2 0 P ( S L ) n o _ u s e n o _ u s e
J 2 0 0 1
V N 5 0 0 0 0
+ 7 A + 1 2 A
G N D 7.0 12.2
Q 2 0 0 1
T N F 2
K T C 3 5 7 2 - A T / H
R 2 0 3 8
B N F 2
1 P 2 2
B O U T 2
B O U T 1
B N F 1
T N F 1
V C C
D G N D
M G
D A P S 1 _ P R T
V O L _ M O S I
C L
V O L _ S C K
V E E
O U T F R V O F R
O U T F L
V O F L
J 2 0 0 9
O U T S R V O S R
n o _ u s e J 2 0 1 0
O U T S L V O S L
O U T S W n o _ u s e V O S W
R 2 0 3 9
O U T C V O C
1 P 2 2
K T A 1 5 7 2 - A T / H
O U T S B R V O S B R
Q 2 0 0 2
O U T S B L V O S B L
-6.9 -12.0
- 7 A - 1 2 A
V 3 8 5 / 4 8 5
J 2 0 0 9 , J 2 0 1 0 : n o _ u s e
J 2 0 1 1 , J 2 0 1 2 : u s e
R 2 0 3 4 , R 2 0 3 5 : u s e
V 5 8 5 / A 6 8 0
J 2 0 0 9 , J 2 0 1 0 : u s e
J 2 0 1 1 , J 2 0 1 2 : n o _ u s e
R 2 0 3 4 , R 2 0 3 5 : n o _ u s e
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
Q R S T U
PRE OUT
SUBWOOFER
M S P - 2 4 1 V 1 - 0 1 N I
P J 2 0 4
P J 2 0 5
n o _ u s e
R 2 0 7 4 C 2 0 4 1
C 2 0 4 2
A G N D 0 . 0 1 ( B ) C 2 0 5 9
0 . 0 1 ( B )
C 2 0 4 0
C 2 0 6 0
+ 1 2 A
1 0 0 0 P ( B )
12.1
C H A S S I S _ B
SUBWOOFER OUT
B A 4 5 6 0 F
V +
V O S W R 2 0 4 0 5
8
1 0 / 5 0
7 6 8 0 3 3 0
1 K
I C 2 0 2
6
C 2 0 3 9 R 2 0 6 8 R 2 0 6 9 1 0 K
1 0 0 P ( S L )
R 2 0 7 1
3 . 3 K C 2 0 3 8
1 0 K
R 2 0 4 3
R 2 0 7 2
D 2 7 0 4 ( K ) D 2 7 0 4 ( K )
4 . 6 2 d B
Q 2 0 1 0 Q 2 0 1 1
2 I C 2 0 2
1
4
3
V - B A 4 5 6 0 F
M U T E _ S W
-12.0
- 1 2 A
-12.0
- 1 2 A
P O E
R 2 0 6 4
1 0 K
C 2 0 3 4 F R
V O F R R 2 0 5 6
1 K
1 0 / 5 0
C 2 0 3 7 F L
V O F L R 2 0 5 9
1 0 / 5 0 1 K Q 2 0 0 9
R 2 0 6 7
FRONT L
1 0 K
P O E
D 2 7 0 4 ( K )
C 2 0 3 5 C
V O C R 2 0 5 7
1 0 / 5 0 1 K Q 2 0 0 7
R 2 0 6 5
CENTER
1 0 K
D 2 7 0 4 ( K ) P O E
P O E
R 2 0 6 6
1 0 K
C 2 0 3 6
V O S R R 2 0 5 8 S R
1 K
1 0 / 5 0
V O S L 1 0 / 5 0 1 K
R 2 0 5 3
C 2 0 3 1 Q 2 0 0 3 S L
SURROUND L
1 0 K
R 2 0 6 1
D 2 7 0 4 ( K )
P O E
n o _ u s e
P O E
R 2 0 6 2
V O S B R
R 2 0 5 4 S B R
C 2 0 3 2
C 2 0 3 3
V O S B L V O S B L R 2 0 5 5 S B L
Q 2 0 0 5
R 2 0 6 3
P O E
M U T E _ 3 c h
M U T E _ S U R
M U T E _ S B
-12.0
- 1 2 A
V W X Y
RX-V385/HTR-3072
IC202: BA4560F-E2
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
IC203: BD3473KS2
7.1-channel sound processor with built-in mode and input selectors
60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41
61 40
62 39
63 38
64 37
65 Multi2 36
Sub1
Multi1
66 35
67 34
Mode Mode Mode Mode
68 ADC 33
selector selector selector selector
69 Mixing 32
Gain
70 Front:-1.62dB 31
SW:-3.60dB
Rec
71 30
72 29
73 28
74 27
75 26
SBL SBR C SW SL SR FL FR
76 Volume Volume Volume Volume Volume Volume Volume Volume 25
Sub2
Volume
77 +24dB to 95dB 24
/0.5dB step
78 23
TONE TONE
79 22
80 21
LOGIC
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
105