Yamaha RX-V357, Service Manual

Page: 57 / 70

A
1
2
3
4
5
6
7
8
9
10
B C D E F G H I J K L M N
RX-V357/HTR-5830
SCHEMATIC DIAGRAM (MAIN 1/2)
57
★
All voltages are measured with a 10M
Ω
/V DC electronic volt meter.
★
Components having special characteristics are marked s and must be replaced
with parts having specifications equal to those originally installed.
★
Schematic diagram is subject to change without notice.
FRONT L
FRONT L
CENTER
CENTER
SURROUND L
SURROUND L
-12.1
0
0
-12.1
0
0
-51.6
-52.0
52.1
0.1 0.1 0.1 0.1
0 0 0 0 0 0
0.6
50.4
-12.1
0
0
-12.1
0
0
-51.6
-52.0
52.1
0.1 0.1 0.1 0.1
0 0 0 0 0 0
0.6
50.4
0.4
0
0.1 0.1
0
-51.6
11.9
-52.0
52.1
0.1 0.1 1.1
52.1
0
0.1
0
0.1
0
0.1
0
52.0
51.8
50.4
0
0
51.0
0
5.0
0.1
51.8
0
0.1
51.8
0
0
0
50.4 51.0
51.7
51.0
-12.1
50.4
49.3
0.1
0.1
0
1.1 48.9
51.8
0.1
49.8
0
0.1
51.8
0
0.1
0
0
0
0
0
0
0
0
0
4.8
0
0
0
0
0
11.7
-12.0
-12.0
11.7
11.5
11.5
-12.0
-12.0
-12.0
11.6
-12.0
-28.3
-28.9
-28.9
0
-47.8
11.7
-12.0
0.1 11.6
11.7
11.5
11.7
11.6
0.1 0.1
-12.0
11.6
11.5
-12.0
0.8
0.1
0.1
0.1
13.0
13.0
6.0
0
13.0
6.0
0
52.1
-52.0
0
0
AC 76.3
AC 12.2
MAIN (1) POWER Section
MAIN (6)
MAIN (2)
MAIN (4)
POWER RELAY
SPEAKER RELAY
SPEAKER RELAY
RELAY
DRIVE
RELAY DRIVE
RELAY DRIVE
SPEAKER
RELAY
DETECT
MUTE
MUTE
DETECT
DETECT
DETECT
DETECT
DETECT
MUTE
CENTER POWER AMP
R CH POWER AMP
L CH POWER AMP
POWER SUPPLY
x: NOT USED
O: USED / APPLICABLE
P
a
ge 56
to FUNCTION (10)
CB431
K5
P
age 55
to FUNCTION (1)
CB454_9 pin
L7
P
age 58
to MAIN (1)
µ
-COM Section
D3
P
age 58
to MAIN (1)
W382B
A8
IC101: STK404-130Y
Power Amp.
8
11
12
1
2
13
15
14
5 4 6 7 9 10
IC102, 103: STK403-130Y
Power Amp.
Pre
Driver
CH1
Pre
Driver
CH2
Bias Circuit
SUB
3