Yamaha HTR-6280, Service Manual

Page: 126 / 166

A
1 2 3 4 5 6 7 8 9
10
BCD
E
F
G
H
I
J
K
L
M
N
RX-V1065/HTR-6280/AX-V1065
126
MAIN 1/2
★
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.
●
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ございます。
CB103
w109
W104A
W121B
W114
CB107
IC103
W125B W123B W122B W120B W124B
W126B W126A
CB111
CB112
W121A W125A W123A W122A W120A W124A
W105A W101A W102A W103A
W111A
CB101
w110
IC101 IC102
W106
CB102
W104B W105B W101A W102B W103B
W116
CB104 W107
18.3
-18.9
0
0
18.3
0
12.0
0
-17.0
-11.8
0 0
-58.4
58.5
A
C29.4
A
C41
.4
A
C81
.1
56.1
55.5
1.1
58.5
0.6
0
1.1
-0.4
-1.0
0
-0.4
-58.4
-0.4
1.1
-1.0
-1.0
-58.4
-55.4
-1.0
-59.9
-56.5 -55.9
0 0
58.2
0 0
0 0
0
0
0
0 0
0 0
0 0
0 0
0
0 0 0 0 0 0 0 0
0 0 0 0 0 0 0
3.4
0
0
58.5 0
58.0
58.5
1.1
0.6
58.5
0.6
0
1.1
-0.4
-1.0
0
-0.5
-58.4
-0.5
1.1
-1.0
-1.0
-58.4
-55.4
-1.0
-59.9
-56.5
-55.9
0 0
58.2
0
0
58.5
1.1
0.6
58.5
0.6
0
1.1
-0.4
-1.0
0
-0.5
-58.4
-0.5
1.1
-1.0
-1.0
-58.4
-55.4
-1.0
-59.9
-56.5
-55.9
0 0
58.2
0
0
58.5 58.5 58.5
1.1
0.6
58.5
0.6
0
1.1
-0.4
-1.0
0
-0.5
-58.4
-0.5
1.1
-1.0
-1.0
-58.4
-55.4
-1.0
-59.9
-56.5
-55.9
0 0
58.2
0
0
1.1
0.6
58.5
0.6
0
1.1
-0.4
-1.0
0
-0.4
-58.4
-0.4
1.1
-1.0
-1.0
-58.4
-55.4
-1.0
-59.9
-56.5
-56.0
0 0
58.2
0
0
1.1
0.6 58.5
58.5
0.6
0
-0.4
-1.0
0
-0.5
-58.4
-0.5
1.1
-1.0
-1.0
-58.4
-55.4
-1.0
-59.9
-56.5
-56.0
0 0
58.2
0
0
1.1
0.6 58.5
58.5
0.6
0
-0.4
-1.0
0
-0.5
-58.4
-0.5
1.1
-1.0
-1.0
-58.4
-55.4
-1.0
-59.9
-56.5 -56.0
0 0
58.2
0
0
1.1
0.6
56.5
-0.5
0
55.5
0
-0.5
56.1
55.5
1.1
56.5
-0.5
0
55.5
0
-0.5
56.1
55.5
1.1
56.5
-0.5
0
55.5
0
-0.5
56.1
55.5
1.1
56.5
-0.5
0
55.5
0
-0.5
56.1
55.5
1.1
56.5
-0.5
0
55.5
0
-0.5
56.1
55.5
1.1
56.5
-0.5
0
55.5
0
-0.5
56.1
55.5
1.1
56.5
-0.5
0
55.5
0
-0.5
58.0
56.6
12.0 -11.8
12.0
0
0
-11.8
-11.8
12.0
58.5
53.3
-0.5
0 -57.2
-58.4
-50.3
-13.0
-0.4
0
-13.0
56.6
3.3
2.8
3.3
-0.4
-56.5
-12.0
-57.1
2.8
FR
ONT L
SURR
OUND
B
A
CK L
SURR
OUND L
CENTER
COMMON (GND)
IC1
02
: KIA791
2PI
V
olt
age r
egulat
or
Q28
Q1
7
Q1
8
Q1
9
Q20
Q31
Q23
Q21
Q22
Q24
Q25
Q26
Q27
Q1
0
Q1
1
Q1
4
Q1
5
Q1
6
Q27
-1
Q26-1
Q1
2
Q
1
3
Q8
Q9
Q2
Q7
Q4
Q5
Q6
Q3
Q29 Q30 R0
R1
R2
R1
4
R1
7
R1
9
R20
R21
R22
R23 R24 R25
R26
R3
R4
R5
R6
R1
0
R1
1
R1
2
R1
3
D4
R9
R7
R8
C2
C1
R1
6
R1
5
R
1
8
1
OUTPUT INPUT
3 2
IC
101
: NJM781
2F
A
V
olt
age r
egulat
or
INPUT OUTPUT COMMON
MAIN (6)
MAIN (5)
MAIN (4)
MAIN (2)
MAIN (1)
MAIN (3)
R, L models
R, L models
VOLTAGE
SELECTOR
POWER
TRANSFORMER
V
O
LT
A
GE SELECT
OR
230-240V
220V 11
0
V
1
20V
1-2/5-6
2-3/6-7
3-4/7
-8
4-5/8-1
to
MAIN 2/2
to
MAIN 2/2
to DIGITAL_CB22
P
age 120
D2
to VIDEO (1)_CB342 P
age 129
A4
to VIDEO (1)_CB340 P
age 129
A5
to VIDEO (1)_CB343 P
age 129
A5
to VIDEO (1)_CB344 P
age 129
A6
to VIDEO (2)_CB378
P
age 130
C7
to VIDEO (1)_CB346 P
age 129
A6