Yamaha RX-SL80 Service Manual page 61

Av receiver/av amplifier
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A
B
C
SCHEMATIC DIAGRAM (MAIN)
1
Page 62
D1
Page 62
D5
to POWER (3)
to POWER (1)
2
SURROUND L
4.9
0
4.9
0
0
0
3
-11.0
-30.3
-29.8
-29.8
4
-40.2
-10.7
-30.3
-29.8
4.9
4.8
4.8
-29.8
4.8
5
0
-40.2
6
7
8
9
10
D
E
F
Page 62
D2
Page 62
D5
to POWER (3)
to POWER (1)
CENTER
4.9
4.9
0
0
0
-10.9
-30.3
-29.8
-29.8
-40.2
4.9
4.9
0.1
0
0
0
0
11.8
-11.9
11.8
-11.9
0
0
0
0
0
0
0
SURROUND L
CENTER
G
H
Page 62
to POWER (3)
0
4.9
4.9
4.9
4.8
0.1
4.8
4.8
0
0
2.6
2.6
5
0
0
0
11.8
-11.9
0
2.6
2.6
0
0
0
0
0
0
0
0
0
0
2.5
4.9
0
FRONT L
Point t (Pin 5 of IC694)
V : 1V/div, H : 100µsec/div
DC, 1 : 1 probe
0V
* All voltages are measured with a 10M Ω /V DC electronic volt meter.
* Components having special characteristics are marked Z and
must be replaced with parts having specifications equal to those
originally installed.
* Schematic diagram is subject to change without notice.
I
J
K
D3
Page 62
D5
to POWER (1)
FRONT L
4.9
0
4.9
0
0
0
4.9
0
0
10.2
0
4.9
-6.1
4.9
4.9
0
0
-10.9
-30.3
-10.8
-30.3
-29.8
-29.8
4.9
4.9
4.9
4.8
0.1
4.8
4.8
-29.8
-29.8
0
0
-40.2
-40.2
4.9
4.9
4.9
0
4.9
4.9
4.3
4.9
0
0
0
0
0.7
* 電圧は、内部抵抗10MΩの電圧計で測定したものです。
* Z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。
L
M
N
RX-SL80
IC691~693: NJM2068MD-TE2
Dual OP-Amp.
OUT
1
8
+V
1
CC
–IN
1
2
7
OUT
2
+
+
+IN
3
6
–IN
1
2
–V
4
5
+IN
CC
2
IC694: TC74HCU04AFEL
Hex Inverters
1A
1
14
VCC
1Y
2
13
6A
2A
3
12
6Y
2Y
4
11
5A
3A
5
10
5Y
3Y
6
9
4A
GND
7
8
4Y
61

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