Yamaha RX-V377 Series Service Manual page 94

A B C
RX-V377/HTR-3067
RX-V377/HTR-3067
1
MAIN 1/3
51.68
51.66
Q 1 3
2
50.89
F L
A 1 1 4 5 ( O / Y )
C 3 3
2 2 P / 5 0 0
Q 1 Q 7
-0.076
F L C 2 R 4 -0.076 0.077 R 3 5
1 0 / 5 0 1 K 3 3 K
C 2 7 1 3 ( G R ) C 2 7 1 3 ( G R )
D 3
FRONT L -0.61
n o _ u s e
R 1 7
-0.002
3 3 K
P O E
3
51.68
51.66
Q 1 4
50.89
F R
A 1 1 4 5 ( O / Y )
C 3 4
2 2 P / 5 0 0
Q 2 Q 8
F R C 3 -0.076 R 5 0.077 R 3 6
-0.076
1 0 / 5 0 1 K 3 3 K
C 2 7 1 3 ( G R ) C 2 7 1 3 ( G R )
to MAIN
D 4
2/3 -0.61
4
n o _ u s e
R 1 8
-0.002
3 3 K
P O E
51.68
51.66
Q 1 5
5
50.89
C
A 1 1 4 5 ( O / Y )
CENTER
C 3 5
Q 3 Q 9 2 2 P / 5 0 0
C 4
C -0.076 R 6 -0.076 0.077 R 3 7
1 K 3 3 K
1 0 / 5 0
C 2 7 1 3 ( G R ) C 2 7 1 3 ( G R )
D 5
-0.61
n o _ u s e
R 1 9
-0.002
3 3 K
P O E
6
n o _ u s e
Q 1 6
S W
A 1 1 4 5 ( O / Y )
C 3 6
Q 4 Q 1 0 2 2 P / 5 0 0
S W R 1 C 7 R 9 R 3 8
1 0 0 1 K 3 3 K
1 0 / 5 0
C 2 7 1 3 ( G R ) C 2 7 1 3 ( G R )
D 6
7
n o _ u s e
R 2 0
3 3 K
P O E
C 8
R 1 0
n o _ u s e n o _ u s e
51.68
51.66
8
Q 1 7
50.89
S L
A 1 1 4 5 ( O / Y )
C 3 7
2 2 P / 5 0 0
Q 5 Q 1 1
S L C 5 -0.076 0.077
R 7 -0.076 R 3 9
1 K 3 3 K
1 0 / 5 0
C 2 7 1 3 ( G R ) C 2 7 1 3 ( G R )
D 7
SURROUND L -0.61
n o _ u s e
R 2 1
-0.002
3 3 K
9
P O E
51.68
51.66
to MAIN
2/3
Q 1 8
50.89
A 1 1 4 5 ( O / Y )
S R
C 3 8
2 2 P / 5 0 0
Q 6 Q 1 2
S R C 6 -0.076 R 8 0.077 R 4 0
-0.076
1 0 / 5 0 1 K 3 3 K
C 2 7 1 3 ( G R ) C 2 7 1 3 ( G R )
10 D 8
-0.61
n o _ u s e
R 2 2
-0.002
3 3 K
P O E
94
D E F
51.66
I N A 6 0 0 2 A C 1 - T H 1 2
1 0 K
R 1 7 3
Q 6 1
4 7 K
R 1 7 4
Q 3 1
1.03
Q 4 3 51.49 R 1 6 1
R 1 1 9 0.48
4 7 K
C 4 4 8 8 ( S / T ) Q 5 5
1 / 2 P 1 0 R 1 3 7
-0.001
Q 1 9 C 4 4 6 8 - F
4 . 7 K
-0.44
I N C 6 0 0 2 A C 1 - T 1 1 2
51.49 C 4 1 1 5 S
R 1 6 7
5 6 K
-0.6
-0.002
Q 4 4
-0.48
-0.49 R 1 2 0
Q 3 2
1 / 2 P 1 0
-0.004
A 1 6 9 5 - F
-1.03
Q 2 5 A 1 7 0 8 ( S / T )
R 6 5 -49.09
4 7 K
-49.65
-52.52
-50.25
R 5 3
1 0 K
51.66
Q 3 3
1.03
Q 4 5 51.49 R 1 6 2
R 1 2 1 0.48
4 7 K
C 4 4 8 8 ( S / T ) Q 5 6
1 / 2 P 1 0 R 1 3 8
-0.001
C 4 4 6 8 - F
Q 2 0
4 . 7 K
-0.44
I N C 6 0 0 2 A C 1 - T 1 1 2
51.49 C 4 1 1 5 S
R 1 6 8
4 7 K
-0.6
-0.002
Q 4 6
-0.48
-0.49 R 1 2 2
Q 3 4
1 / 2 P 1 0
-0.004
A 1 6 9 5 - F
-1.03
Q 2 6 A 1 7 0 8 ( S / T )
R 6 6 -49.09
4 7 K
-49.65
-52.52
-50.25
R 5 4
1 0 K
51.66
Q 3 5
1.03
Q 4 7 51.49
R 1 6 3
R 1 2 3 0.48
C 4 4 8 8 ( S / T ) 4 7 K
Q 5 7
1 / 2 P 1 0
R 1 3 9
-0.001
C 4 4 6 8 - F
Q 2 1
4 . 7 K
-0.44 I N C 6 0 0 2 A C 1 - T 1 1 2
51.49 C 4 1 1 5 S
R 1 6 9
4 7 K
-0.6 -0.002
Q 4 8
R 1 2 4 -0.48
-0.49
Q 3 6
1 / 2 P 1 0
-0.004
A 1 6 9 5 - F
-1.03
A 1 7 0 8 ( S / T )
Q 2 7
R 6 7 -49.09
4 7 K
-49.65
-52.52
-50.25
R 5 5
1 0 K
Q 3 7
Q 4 9
R 1 6 4
R 1 2 5
4 7 K
C 4 4 8 8 ( S / T ) Q 5 8
1 / 2 P 1 0
R 1 4 0
C 4 4 6 8 - F
Q 2 2
4 . 7 K
I N C 6 0 0 2 A C 1 - T 1 1 2
C 4 1 1 5 S
R 1 7 0
6 8 K
Q 5 0
R 1 2 6
Q 3 8
1 / 2 P 1 0
A 1 6 9 5 - F
A 1 7 0 8 ( S / T )
Q 2 8
R 6 8
4 7 K
R 5 6
1 0 K
51.66
Q 3 9
1.03
Q 5 1 51.49 R 1 6 5
R 1 2 7 0.48
C 4 4 8 8 ( S / T ) 4 7 K
Q 5 9
1 / 2 P 1 0 R 1 4 1
-0.001
Q 2 3 C 4 4 6 8 - F
4 . 7 K
-0.44 I N C 6 0 0 2 A C 1 - T 1 1 2
C 4 1 1 5 S
51.49
R 1 7 1
6 8 K
-0.6
-0.002
Q 5 2
R 1 2 8 -0.48
-0.49
Q 4 0
1 / 2 P 1 0
-0.004
A 1 6 9 5 - F
-1.03
Q 2 9 A 1 7 0 8 ( S / T )
R 6 9 -49.09
4 7 K
-49.65
-52.52
-50.25
R 5 7
51.66
1 0 K
Q 4 1
1.03
Q 5 3 51.49 R 1 6 6
R 1 2 9
0.48 4 7 K
C 4 4 8 8 ( S / T ) Q 6 0
1 / 2 P 1 0 R 1 4 2
-0.001
C 4 4 6 8 - F
Q 2 4
4 . 7 K
-0.44
I N C 6 0 0 2 A C 1 - T 1 1 2
51.49 C 4 1 1 5 S
R 1 7 2
5 6 K
-0.6
-0.002
Q 5 4
-0.48
-0.49 R 1 3 0
Q 4 2
1 / 2 P 1 0
-0.004
A 1 6 9 5 - F
-1.03
Q 3 0 A 1 7 0 8 ( S / T )
R 7 0 -49.09
4 7 K
-49.65
-52.52
-50.25
R 5 8
1 0 K
G H I
Page 88 F1
to DIGITAL_CB222
t o D I G I T A L
T U L
J 1
n o _ u s e
T U R
R 2 0 6
A E - 1 2 A
1 0 0 K
5 C H _ M T
R 2 0 7
- 1 2 A
1 0 0 K
S W _ M T
C 7 6
V O L _ M O S I
n o _ u s e
C 7 7
V O L _ S C K
n o _ u s e
F L
A E
H P R
R Y 2
5 4
R Y 2
2 3
H P L
9 8 1 - 2 A - 2 4 D S - S P 7
F R
R Y 1
2 3
R Y 1
5 4
F L
9 8 1 - 2 A - 2 4 D S - S P 7
F R
Q 6 8
R 2 0 4
1 0 0
K T C 3 1 9 8 ( Y )
C 6 4
P
1 0 0 0 P / 2 5 0 V
R 1 7 6
1 P 4 . 7
C
R Y 3
5 4
R Y 3
2 3
S L
9 8 1 - 2 A - 2 4 D S - S P 7
S R
R Y 4
C 5 4
R Y 4
2 3
S W
9 8 1 - 2 A - 2 4 D S - S P 7
+ 1 2 A
K R A 1 0 4 S - R T K / P
K R A 1 0 4 S - R T K / P
S W
K R A 1 0 4 S - R T K / P
K R A 1 0 4 S - R T K / P
C 7 8
n o _ u s e
- 1 2 A
S L
S R
C 6 5
P + B V Q 6 6
51.92 K T A 1 6 5 9 A 51.95
R 2 0 5
1 0 0 0 P / 2 5 0 V
1 / 4 P 1 . 0
R 1 7 7
1 P 4 . 7
51.5
Q 6 3 29.1 Q 6 7
3.24 R 2 0 2 A M P _ L M T
3.21 1 0 0
2 N 5 5 5 1 C - A T / P 2 N 5 5 5 1 C - A T / P
2.63
2 N 5 4 0 1 C - A T / P
0.3
Q 6 4
-13.28 -51.31
-51.27
R 2 0 3
Q 6 2 -50.56 - B V -52.12 1 / 4 P 1 . 0
K T A 1 6 5 9 A
Q 6 5
-12.73 R 1 8 0
-46.1 1 P 1 K
A 1 7 0 8 ( S / T )
★ 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.
J K
MAIN (1)
M A I N ( 1 )
A M P _ L M T L o c a t i o n : * 1 * 4 0 0
L o c a t i o n : * * 1 * * 4 0
D G N D
H P _ N _ D E T 3.27
0
0
0
FRONT L
A M P _ O L V
C H A S S I S _ A
CENTER
J 6
n o _ u s e
J 7
n o _ u s e
J 5
@ v a l u e
SURROUND L
H P
C H A S S I S _ B
Q 7 3
Q 6 9
H P R Y
K R C 1 0 2 S - R T K / P
F L / F R
Q 7 0 Q 7 4
S P R Y _ 5 C H
K R C 1 0 2 S - R T K / P
P S _ P R T
+ 1 2 A
- 1 2 A
C / S L
+ 4 0 F
Q 7 5
Q 7 1
K R C 1 0 2 S - R T K / P
+ 1 2 A
K R A 1 0 4 S - R T K / P
S R / S W
Q 7 6
Q 7 2
Q 7 9
Q 7 8
K R C 1 0 2 S - R T K / P
K R C 1 0 2 S - R T K / P
- 1 2 A
+ B
51.38
D H 2 4 D 2 - O - Q
H S 1
D 4 7 T S 6 P 0 3 G - 0 8 _ X 0
R Y 5
1 2
W F 6 8 7 6 0 T H 1
N C P 1 8 X H 1 0 3 J 0 3 R B
R Y 5
D H 2 4 D 2 - O - Q
- B -51.36 G 2
G 1 T P 0 0 3 8 5
+ 4 0 F
T P 0 0 3 8 5
Q 7 7
39.78 C 4 4 8 8 ( S / T ) 51.74 D 4 8
R 2 1 4 R 2 2 4
1 / 4 P 1 0 1 / 4 P 2 . 2
1 N 4 0 0 3 S
40.33
● 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。
L M N
C A P A C I T O R
N O T I C E
R E M A R K S P A R T S N A M E ( m o d e 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
J J A P A N
T A N T A L U M C A P A C I T O R
U U . S . A
N O M A R K C E R A M I C C A P A C I T O R
C C A N A D A
C E R A M I C T U B U L A R C A P A C I T O R
R G E N E R A L
P O L Y E S T E R F I L M C A P A C I T O R T C H I N 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 K K O R E A
M I C A C A P A C I T O R A A U S T R A L I A
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 B B R I T I S H
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 G S T A N D A R D
P O L Y P H E N Y L E N E S U L F I D E F I L M L S I N G A P O R E
S
C A P A C I T O R E S O U T H E U R O P E
V T A I W A N
R E S I S T O R
F R U S S I A N
R E M A R K S P A R T S N A M E
P L A T I N A M E R I C 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 )
S B R A Z I L
C A R B O N F I L M R E S I S T O R ( P = 1 0 )
H T H A I
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
W 1
H P _ N _ D E T
Page 92 J4
H P R
to OPERATION (5)_CB166
H P G
H P L
4 P 3 5 0 M M B & C
s 1
T E 1
2
R E D
F R
1 FRONT
B L A C K
4 L/R
R E D
F L
3
B L C A K
G
M S T - 2 0 4 V 1 - 0 1
5
SPEAKERS
M S P - 1 1 5 V 2 - 0 7 n o _ u s e
T E 2 T E 3
C 5
4
C CENTER
L
C G 6
8
S L G 4
3
S L
R
S L 3 SURROUND
7
S R 1
2 L/R
S R
C
S R G 2
6
G 7 S W
1
G 8 ( S W )
SUBWOOFER
S W G
5
G 9
G 1 0
C B 2
0 N C
1
11.95 + 1 2 A
2
Page 93 B8
0 A G N D
3
to OPERATION (2)_CB134
-12.09 - 1 2 A
4
1.80 P S _ P R T
5
39.96 + 4 0 F
6
M F 8 0 6 1 0
5 1 0 4 8 6 P 1 0 0 M M P = 2 . 0
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
C B 3
A C L
1
A C L AC 41.48
2
E
3
E 0
4
A C H
5
A C H AC 75.6
6
to POWER TRANSFORMER
V H I
Safety measures
• Some internal parts in this product contain high voltages and are
dangerous. Be sure to take safety measures during servicing, such as
wearing insulating gloves.
• Note that the capacitors indicated below are dangerous even after the
power is turned off because an electric charge remains and a high
voltage continues to exist there.
Before starting any repair work, connect a discharging resistor (5
k-ohms/10 W) to the terminals of each capacitor indicated below to
discharge electricity.
The time required for discharging is about 30 seconds per each.
C46, C47 on MAIN (1) P.C.B.
安全対策
・ この製品の内部には高電圧部分があり危険です。修理の際は、絶縁性の
手袋を使用するなどの安全対策を行ってください。
・ 下記のコンデンサには電源を OFF にした後も電荷が残り、高電圧が維持
されており危険です。修理作業前に放電用抵抗（5 k Ω /10 W）を下記の
各コンデンサの端子間に接続して放電してください。 放電所用時間は各々
約 30 秒間です。
MAIN（1）P.C.B. の C46、C47