Yamaha RX-V671 Service Manual page 138

A B C
MAIN 1/2
1
CENTER
2
3
FRONT L
4
5
SURROUND
BACK L
6
7
8
SURROUND L
9
10
D E F G H I
MAIN (1)
Page 142 B5 RX-V671/HTR-6064
W107
to VIDEO (1)_CB342
Page 145 B5 RX-A710
to VIDEO (1)_CB342
CB104
Page 142 B5 RX-V671/HTR-6064
to VIDEO (1)_CB343
Page 145 B5
RX-A710
to VIDEO (1)_CB343
Page 142 B6 RX-V671/HTR-6064
to VIDEO (1)_CB340
Page 145 B6 RX-A710
W116
to VIDEO (1)_CB340
CB103 RX-V671/HTR-6064
Page 142 B6
to VIDEO (1)_CB344
Page 145 B6 RX-A710
to VIDEO (1)_CB344
Notes)
Safety measures
5 k-ohms
10 W
MAIN (2)
W104A W104B
W105A W105B
W101A W101B
W102A W102B
W103A W103B
to POWER TRANSFORMER
5 k-ohms
10 W
5 k-ohms
10 W
IC101
W106
CB101 CB102
IC102
5 k-ohms
10 W
Page 142 B7 RX-V671/HTR-6064
W110
to VIDEO (1)_CB346
Page 145 B7 RX-A710
to VIDEO (1)_CB346
J K L
IC102: KIA7912PI
IC101: NJM7812FA
Voltage regulator
Voltage regulator
R22
INPUT
R15 R18 R21 R23
Q28 Q17 Q21
Q22 Q24
R16
Q23
OUTPUT
Q19 R24
Q29
R20
R1
Q18 Q20
Q25
Q30
R14 R17 Q31
R25
R19
Q12 Q13
Q2 Q3
COMMON Q26-1
R26
Q26
Q7
R0
Q8
R4
Q4 Q6
Q9
R3
Q5
R2
MAIN (6)
★ All voltages are measured with a 10MΩ/V DC electronic voltmeter.
★ Components having special characteristics are marked
with parts having specifications equal to those originally installed.
★ Schematic diagram is subject to change without notice.
M N
RX-V671/HTR-6064/RX-A710
1 COMMON (GND)
R13 R12
R11
R10
Q27 3 OUTPUT
Q27-1
D4 Q14
Q15
C2 C1
Q16
R9
R5 R6
Q11
Q10
R8
R7
2 INPUT
and must be replaced
139