Yamaha RX-V757 Service Manual page 44

A B C
SCHEMATIC DIAGRAM (POWER)
1
2
L
55.1 56.2
0
0
-0.6
3
-0.6 0
4
55.1 56.2
0.1
0
-0.6
-0.6 0.1
SBL
5
55.1 56.2
0
0
-0.6
-0.6
6
SL
55.1
56.2
0
0
-0.6
-0.6
7
C
55.1 56.2
0
0.1
-0.6 -0.6
8
9
10
D E F
12.1 19.2
0
0.9 4.9
0
55.6
-55.1
0
-12.1 -20.1
1.1
55.6
-55.1
1.1
55.6
-55.1
1.1
55.6
-55.1
1.1
s8
55.6
-55.1
1.1
Page 90 A-4 Page 90 A-1
Page 90 A-5
TO MAIN (1) CB6 TO MAIN (1) CB5 TO MAIN (1) W15
G H
REGULATOR
POWER SUPPLY
19.2
0
-0.1
4.9 10.1 -20.1
0 3.3 10.1
0
10.1
0
-0.1
-11.2
56.2
55.6
56.2
55.1 0.6
1.1
1.1
0.6
-0.5 56.0
0.1
0.1
-1.0
55.1 56.2
0.1
0
0
-0.6 -0.6
0
-0.5
-0.5
-1.0 -1.0 0.1
-56.2
-49.2
0
-49.7 -56.2
-49.7
-50.3
55.6
55.1
1.1
55.1 56.2
0 0
-0.6 -0.6
IC301 : LM61CIZ IC306 : NJM2388F33
Temperature Sensor Rgulator
1
V IN
+Vs
Bandgap
Reference
Vout
ON/OFF
C 4
ONT control
Over Voltage Thermal Over Current
Protection Protection Protection
GND 3
GND
I J K
AC 31.1
TO POWER TRANSFORMER
AC 17.5
Page 90 F-7
TO MAIN (1) W8
Page 94 F-9
TO CONVERSION (1) CB706
Page 90 D-10
TO MAIN (1) W12
POWER (2)
POWER (1)
2
V OUT
L M N
RX-V757/DSP-AX757/DSP-AX757SE
RX-V657/HTR-5860
* 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.
* 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。
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