Yamaha DSP-AX440, Service Manual

Page: 85 / 140

A B C D E F G H I J K L
RX-V540/RX-V540RDS/HTR-5650/HTR-5650RDS/DSP-AX540
RX-V440/RX-V440RDS/HTR-5640/HTR-5640RDS/DSP-AX440
85
SCHEMATIC DIAGRAM (MAIN)
1
2
3
4
5
6
7
8
9
★
All voltages are measured with a 10M
Ω
/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.
IC401: LM61CIZ
Temperature Sensor
Vout
+Vs
GND
IC402: NJM7812FA
IC404, 406: NJM7805FA
Voltage Regulator
INPUT
OUTPUT
COMMON
IC403: NJM79M12FA
IC405: NJM79M05FA
Voltage Regulator
COMMON
OUTPUT
INPUT
RX-V540/RX-V540RDS/HTR-5650/HTR-5650RDS/DSP-AX540
to FUNCTION (6)
P
age 80
F2
P
a
ge 87
to PO
WER (1)
to MAIN (1)
A6
to FUNCTION (4)
P
age 80
A7
to MAIN (3)
to FUNCTION (4)
Page 80 A6
to POWER (2)
Page 87 D2
to MAIN (3)
to PO
WER (1)
P
age 87
D1
to PO
WER (1)
P
age 87
D5
x: NOT USED
O: USED / APPLICABLE
SPEAKER RELAY
REGULATOR
REAR C POWER AMP
MAIN L POWER AMP
REAR L POWER AMP
REAR R POWER AMP
CENTER POWER AMP
MAIN R POWER AMP
to P
o
w
er
T
ransf
or
mer
to P
o
w
er
T
ransf
or
mer
H4
D7
to MAIN (1)
E3
H4
MAIN L
REAR L
CENTER
1.0
1.0
0.5
-0.6
-1.1
-0.6
-46.4
-47.6
-0.6
47.5
47.5
0
0
0
0
0
0
47.2
-47.6
-47.6
-1.1
-1.1
1.0
1.0
-0.6
-47.6
47.5
0.5
-0.6
-47.6
-0.6
0
0
-47.6
47.5
47.2
0
-1.1
-46.2
-47.6
47.5
47.5
0
0
-0.6
-0.6
0.6
-0.6
0
0
0
47.2
0
0.6
-1.1
1.0
1.0
-0.6
0.5
0
0
0
1.0
-47.5
-47.5
0
-47.5
-47.5
-47.3
47.5
0.5
-0.5
-47.6
-32.9
-32.9 -32.4
-32.2
-22.5
47.5
0
0
-47.6
-47.0
-47.3 -47.5
1.0
-1.1
0.5
0
0
0
0
47.2
-0.5
-47.5
-47.5
0
0.2
0.2
-1.1
-1.1
-46.4
1.0
-1.1
-46.4
-0.6
-47.6
-0.6
-0.6
-1.1
-1.1
1.0
1.0
0.5
0.5
0.5
-0.6
-0.6
-1.1
-1.1
0
47.2
47.5
0
4.7
0
0 0
0.5 0.5
0.5
0
0.5
0
0.5
0
0.5
0
0.5
0
0
4.7
0
47.5
47.5
49.4
0
0
0
0
0
0.5
0.5
24.1
12.1
0.1
0.7
0
32.2
-28.2
0.1
0.7
33.4
33.4
24.1
12.1
0.1
32.7 12.1
32.2
32.2
0
0
0
0
0
-28.8
-28.8
0
0
24.1
33.4 -0.1
-0.1
-0.1
-0.1
33.4
-33.4
-33.4
0
0
-47.6
(-34.2)
47.5
(-34.3)
AC
70.7
AC
50.7
0.9
4.8
0
0.4
0
-46.4
-0.5
-0.5
47.2
0
47.4
0
0
0
0.4
0.4
-47.6
-47.6
0
0
47.5
47.5
0
0
0
-0.1
0
0
10.6
-11.8
-0.1
10.1
0
4.9 10.6
0
4.9 18.9
0
11.7
-20.4
0
-12.1
-11.6
0
-5.0
-0.1
19.2
-20.4
0
1.0
1.0
0
AC
30.9
AC
18.3
4.7/50