Yamaha RX-V1500 Service Manual page 83

A B C
SCHEMATIC DIAGRAM (POWER)
1
57.3
56.7
1.0
56.8 56.7
0
0
-0.6
-0.6
2 0
57.3
56.7
1.1
56.8
56.7
3
0
0
-0.6
-0.6 0
57.3
56.8
1.0
4
56.8 56.8
0
0
-0.6 -0.6
57.3
5 56.8
1.0
56.8 56.8
0
0
-0.6
-0.6
6
57.2
56.8
1.0
56.8
56.8
0
0
-0.6 -0.6
7
-12.1
0
57.6 57.9
58.1
57.6 58.1
42.2
44.2
33.2
8
27.0
0
0
0
0
-12.1
POWER(1)
9
10
D E F
POWER(6)
FRONT L
FRONT L PRE AMP
56.8 57.4
0
-0.5 -0.5
0
0
FRONT R PRE AMP
57.4
56.8
0
-0.5
-0.5
SURROUND R PRE AMP
0
0
0
44.3
44.3 0
0
0.1
0
0
SURROUND L PRE AMP
0
0 0
4.6
0.7
0 3.6
3.4
8.5 3.4
0 3.4
3.4
8.5
0 3.4
CENTER PRE AMP
0
POWER(5)
0
CENTER
POWER(2)
18.5
-0.1
57.9
-0.1
58.3
-19.2
AC 30.0
0
0 0
AC 19.0
-57.8
-58.2
AC 6.9
-58.2
-57.1
-58.2
10.8
-58.0
-0.2
-0.2
-57.1 -58.0
-12.1
-57.2 -58.3
-57.8
-57.7
IC21, 22, 25: NJM7805FA
IC23: NJM7812FA
Voltage Regulator
G H
SURROUND BACK L
57.3
56.8
1.0
0
SURROUND BACK L
POWER(7)
PRE AMP
57.3
56.8
1.0
SURROUND BACK R
PRE AMP
0
to Fan
POWER RELAY
POWER(4)
8.5
VOLTAGE SELECTOR
0.1
0.1
0.8
0
AC
8.9
to Power Transformer
REGULATOR
Page 84 H6
18.2 11.8
to VIDEO (4)
0
0 REGULATOR
-19.1 -12.1
8.0 2.5
3.1
0
10.4 5.0
0
10.5 5.0
10.1
0
-11.9
POWER(3)
IC24: NJM79M12FA
IC26: NJM79M05FA
Voltage Regulator
INPUT
COMMON
OUTPUT
OUTPUT
COMMON
INPUT
I J K
x: NOT USED
O: USED / APPLICABLE
5.6
0.7
0
0
-5.0
★ All voltages are measured with a 10MΩ/V DC electronic volt meter.
★ Components having special characteristics are marked s and must be replaced
with parts having specifications equal to those originally installed.
★ Schematic diagram is subject to change without notice.
L M N
RX-V1500/DSP-AX1500
83