3-Channel Af Power Amplifier/Stand-By Circuit Built-In - Yamaha RX-V367 Service Manual

A B C
MAIN 1/3
1
0
1.7
3.3
3.3
3.3
0
3.3
0
3.3
2 Page 80 F2 3.4
0
to DIGITAL_CB222
0.8
0
0
0
0
-11.7
To MAIN 2/3
0
0
0
0
CB1
3
4
5
To MAIN 2/3
6
7
8
9
10
D E F
IC2
54.2
54.1
0
53.8
0
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0
53.8
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0
5.1
0
0
IC1
53.8
0
0
0
0
53.8
0
0
0
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53.8
0
0
0
0
53.7 53.8
53.1
53.7 39.1
3.3 3.3
2.7 2.7
-52.8 -53.6
-53.4
-52.8
-53.6
-53.8
-53.8
-53.8
0.4
0
0
G H I
MAIN (1)
0
0
0
0
FRONT L
0
3.3
0
0
0
0 0
0 0
3.4
0
0
CENTER
0 0 0
0
0 0 0
0
0
SURROUND L 0
0
0
CB2
12.1
0
12.1
-11.8
1.7
11.9 -38.6
11.9
-11.8
0
-11.8
-11.8
0
12.1
0
0
-11.9
3.3
11.9
0
-11.8
12.1
0
0
-11.9
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-11.9
0
-11.8
12.1
0
0
-11.9
3.3
-11.9
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-11.8
-52.3 -38.6
-39.2
-39.2
0
0
54.2
0
-52.3 0
J K L
FRONT
SPEAKERS
IC1: STK433-330Y-E
3-channel AF power amplifier, stand-by circuit built-in
3
8
Pre
Driver
CH1
+
11
–
12
W1
Page 83 B4
1
2
to OPERATION (5)_CB166
SUB
9 5 4 6 7
IC2: STK433-130Y-E
2-channel AF power amplifier, stand-by circuit built-in
3
8
Pre Driver
CH1
CENTER
11
+
12
–
SPEAKERS
SURROUND
1
2
SUB
10 9 5 4
Page 84 B10
to OPERATION (2)_CB134
12.1
11.9
11.9 -11.8
-11.8
0
0
-11.8
-54.0
CB3
AC41.1
To POWER TRANSFORMER
AC80.0
★ 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-V367/HTR-3063
Pre
Pre
Driver Driver
CH2 CH3
MONO IC
+ +
– –
Bias Circuit
10 13 14 15 16 17 19 18
Pre Driver
CH2
15
+
14
–
Bias Circuit
6 7 13
and must be replaced
85