Yamaha RX-V540 Service Manual page 86

A B
RX-V540/RX-V540RDS/HTR-5650/HTR-5650RDS/DSP-AX540
RX-V440/RX-V440RDS/HTR-5640/HTR-5640RDS/DSP-AX440
SCHEMATIC DIAGRAM (MAIN) RX-V440/RX-V440RDS/HTR-5640/HTR-5640RDS/DSP-AX440
1
MAIN L POWER AMP
MAIN L
47.5
1.0
0.5 47.5
1.0 0.5
0
47.2
-0.6
0.5
0
-1.1 0
-0.6
2
0
-0.6 -0.6
-47.6 0
-1.1
-1.1
-47.6
0
-46.4
MAIN R POWER AMP
47.5
1.0
47.5
1.0
0.5 0.5
47.2
0
-0.6 0
0.5
0
-1.1
-0.6
3
0
-0.6
-0.6
-1.1 -1.1 -47.6
-47.6
0
-46.4
0
REAR L
REAR L POWER AMP
47.5
1.0
1.0
0.6 47.5
47.2
0.6
-0.6
0
0
4 -1.1
0
0
0
-0.6 -0.6
-47.6
-1.1
-1.1
-47.6
0
-46.4
REAR R POWER AMP
47.5
1.0
47.5
0.5
1.0
5
0.5
0 47.2
-0.6
0
-1.1
0
0
-0.6
-0.6 0
-1.1 -47.6
1.0
-47.6
0
-46.2
CENTER
CENTER POWER AMP
47.5
1.0
6
1.0 0.5
47.5
47.2
0.5
-0.6 0
0
0
-1.1
0
-0.5
-0.5 -47.6
-47.5 0
-47.5
-1.1
-47.6
-47.5 -47.3
0
-47.5
-47.0
-47.3
-47.5
-47.5
-22.5
-32.9
0.2
-47.5
7
0.2
-32.2
-32.9 -32.4
0
0
8
9
86
C D E
4.7
4.7
47.5
0
49.4
0 0
0
0 0
0.5
0.5
0.5
0.5 0.5 0.5 0.5
0
0 0 0 0
to MAIN (3)
H4
F G
SPEAKER RELAY
24.1
32.7
12.1
24.1
32.2 0
12.1 32.2
24.1
0.1
12.1
0.1
0
32.2
0.7
0.1 0
33.4
0
0
33.4
0.7
0
-28.2 0
-28.8
-28.8 33.4 -0.1
-0.1
0
33.4
-33.4
-0.1
-0.1
-33.4
AC
70.7
0
-47.6 47.5
(-34.2) (-34.3)
0
AC
50.7
Page 88 D2 Page 82 A6
to POWER (2) to FUNCTION (4)
# All voltages are measured with a 10MΩ/V DC electric 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.
H I J
REGULATOR
11.7 10.6 4.9 10.1
18.9 4.9
0 0 0
0
0
-20.4 -5.0 -11.6
-12.1
REAR C POWER AMP
47.5
1.0
47.5
1.0
0.4
0.4
47.2
0.4 0
0
0
0
4.8
0 0
-0.5
0.9
-0.5 0
-47.6
0 0
-47.6
0
-46.4
IC401: LM61CIZ
Temperature Sensor
+Vs
GND
x: NOT USED
O: USED / APPLICABLE
IC402: NJM7812FA
IC404, 406: NJM7805FA
Voltage Regulator
IC403: NJM79M12FA
IC405: NJM79M05FA
Voltage Regulator
K L
19.2
-0.1
-0.1
AC
-20.4 30.9
AC
18.3
10.6
0
0
-11.8
0
-0.1
0
0
47.4
Vout
INPUT
OUTPUT
COMMON
COMMON
OUTPUT
INPUT