Yamaha RX-V750, Service Manual

Page: 85 / 128

A B C D E F G H
1
2
3
4
5
6
I J K L M N
7
8
9
10
85
RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760
* 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.
POWER SUPPLY
L
C
SL
SBL
SW
–11.6
–11.6
0
0
0
0
31.4
31.4
31.4
32.7
–33.2
0
0
0
0
51.8
–32.3
–28.1
28.8
0.8
23.4
23.4
24.2
11.2
12.2
11.3
31.3
31.9
31.9
23.2
11.1
31.9
0
0.1
0.1
0.1
0.1
0.1
0
0.8
0.1
0
0.8
0.1
0.1
0
0
31.9
32.7
24.2
0.1
0
–51.8
–
51.8
51.8
51.8
–51.8
–51.8
–51.8
51.8
51.8
44.8
44.8
48.2
48.2
0
0
0
0
0
0
0
0.1
AC 49.8
AC 77.1
1.3
–3.8
–3.8
–3.8
0.8
0
0
0
0.1
3.6 3.6
2.4
2.4
1.3
–4.1
–4.1
–4.1
0
–13.3
–43.1
–
13.8
–
13.8
0
–51.4 51.1
51.1
51.3
51.7
51.7
–51.7
–51.7
–
51.7
–50.5
–50.5
–1.0
–1.0
–
0.5
–0.5
–
50.0
–
51.9
–
51.9
0
–
1.0
1
.0
–0.4
1.0
0
51.8
51.8
51.5
0.5
0.5
0
0
–
1.0
1.1
–0.4
1.1
0
51.8
51.8
51.5
0.5
0.5
0
0
0
0
–
50.0
–49.4
–50.5
–1.0
–1.0
–
0.5
–0.5
–
50.0
–
51.9
–
51.9
0
0
0
–
50.0
–49.4
–
1.0
1.1
–0.4
1.1
0
51.8
51.8
51.5
0.5
0.5
0
0
–50.5
–1.0
–1.0
–
0.5
–0.5
–
50.0 –
51.9
–
51.9
0
0
0
–
50.0
–49.4
–
1.0
1.0
–0.4
1.0
0
51.8
51.8
51.5
0.5
0.5
0
0
–50.5
–1.0
–1.0
–
0.5
–0.5
–
50.0
–
51.9
–
51.9
0
0
0
–
50.0
–49.4
–
1.0
1.0
–0.4
1.0
0
51.8
51.8
51.5
0.4
0.4
–
0.5
0.4
0
0
–50.5
–1.0
–1.0
–
0.5
–0.5
–
50.0
–
51.9
–
51.9
0
0
0
–
50.0
–49.4
–
1.0
1.0
–0.4
1.0
0
0
51.8
51.8
51.8
51.7
0
0
51.5
0.4
0.5
–
0.5
0.5
0
0
–50.5
–1.0
–1.0
–
0.5 –0.5
–
51.9
–
51.9
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4.9
–
50.0
–
50.0
–49.4
–51.2
0.2
0.2
–
51.4
0
0
0
0
Page 86 E-9
TO POWER (1) CB353
Page 86 D-9
TO POWER (1) CB359
Page 86 D-9
TO POWER (1) CB352
Page 86 I-3
TO POWER (1) CB355
TO POWER TRANSFORMER
Page 86 K-2
TO SUB TRANS CB401
RX-V750/DSP-AX750/DSP-AX750SE/RX-V650
Page 81 H-7
HTR-5760 Page 82 H-7
TO FUNCTION (2) CB502
Page 86 I-5
TO POWER (1) CB356
RX-V750/DSP-AX750/DSP-AX750SE/RX-V650
Page 81 H-8
HTR-5760 Page 82 H-8
TO FUNCTION (2) CB503
X: NOT USED
O: USED / APPLICABLE
■
SCHEMATIC DIAGRAM (MAIN)
* 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。