Power Supply - Yamaha RX-V750 Service Manual

A B C
SCHEMATIC DIAGRAM (MAIN)
1
L
Page 86 E-9
1.0
TO POWER (1) CB353
0.5
–0.4
2
–1.0 –0.5
–49.4 –1.0
–50.5
1.0
0.4
3
–0.4
–0.5
–1.0
–1.0
–49.4
SL
–50.5
4
1.0
0.5
–0.4
Page 86 D-9
TO POWER (1) CB359
–0.5
–1.0
–1.0
–49.4
5
–50.5
Page 86 D-9
1.1
TO POWER (1) CB352
0.5
–0.4
6
–0.5
–1.0
–1.0
–49.4
–50.5
1.1
0.5
–0.4
7
–0.5
–1.0
–1.0
–49.4
C
–50.5
8
1.0
0.5
–0.4
–0.5
–1.0
–1.0
–49.4
9
–50.5
51.3
51.1 –50.5 –51.4
51.7
51.1 –51.2
51.7
–51.7
–51.7
0
0.2
0.2
10
D E F
51.7
0
0
0
0
0
0
0
0
0
SBL
–13.3
–43.1
Page 86 I-5
TO POWER (1) CB356
G H I
RX-V750/DSP-AX750/DSP-AX750SE/RX-V650
Page 81 H-8
HTR-5760 Page 82 H-8
TO FUNCTION (2) CB503
0.1
0.8
0.1
0.8
0.8
–32.3
–28.1
Page 86 I-3
TO POWER (1) CB355
51.8
0
48.2
51.8
0.1
48.2
3.6
51.8 0
44.8
51.8
44.8
2.4
1.3

POWER SUPPLY

0
51.8 –51.8
0
SW
RX-V750/DSP-AX750/DSP-AX750SE/RX-V650
Page 86 K-2 Page 81 H-7
TO SUB TRANS CB401 HTR-5760 Page 82 H-7
TO FUNCTION (2) CB502
J K
32.7 0
0
0
0
–33.2
–51.8
0
0
–4.1
–4.1
–4.1
3.6
2.4
0
0
–51.8
–3.8 0
–51.8
–3.8
–3.8
1.3 0.1
0.8
0
AC 49.8
TO POWER TRANSFORMER
AC 77.1
L M N
RX-V750/DSP-AX750/DSP-AX750SE
RX-V650/HTR-5760
0
–11.6
0
–11.6 0
0
X: NOT USED
O: USED / APPLICABLE
* 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.
Z
85