A
1
2
3
4
5
6
7
8
9
B
C
D
E
F
G
H
I
J
K
L
SCHEMATIC DIAGRAM (MAIN)
E-58/J-54
RX-V420/RX-V420RDS/HTR-5440/HTR-5440RDS/DSP-AX420
MAIN L POWER AMP
MAIN R POWER AMP
REAR L POWER AMP
REAR R POWER AMP
CENTER POWER AMP
★
All voltage 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.
2SA970
2SA1015
2SC1890
2SC1890A
2SC2240
E C
B
B C E
B C
E
E C
B
2SC1740S
2SA1695
2SC4468
2SD2396
PIN CONNECTION DIAGRAM OF
TRANSISTORS, DIODES AND ICS.
E
C
B
2SA1708
2SC4488
1SS133
1SS270A
1T2
HZS5B2TD
HZS12B2TD
HZS302TD
S1VB20
S5VB20
Anode
Cathode
–
+
~
~
+
–
~
~
~
POWER RELAY
E-56/J-52
C7
E-56/J-52
J5
E-56/J-52
G4
x: NOT USED
O: USED / APPLICABLE
240V
1-2/5-6
220V
2-3/6-7
110V
3-4/7-8
120V
4-5/8-1
VOLTAGE SELECTOR
1.1
-1.1
-0.4
1.1
-1.1
-0.4
50.4
0.5
1.1
50.4
0.5
1.1
50.4
0
0
0.5
-50.4
0
0
-0.5
50.1
50.4
50.3
0
0
0
50.4
0
0
0.5
-50.4
0
0
-0.5
50.1
0
0
-0.5
-50.4
-1.1
-0.5
-50.4
-1.1
1.1
-1.1
-0.4
50.4
0.5
1.1
50.4
0
0
0.5
-50.4
0
0
-0.5
50.1
0
0
-0.5
-50.4
-1.1
1.1
-1.1
-0.4
50.4
0.5
1.1
50.4
0
0
0.5
-50.4
0
0
-0.5
50.1
0
0
-0.5
-50.4
-1.1
1.1
-1.1
-0.4
50.4
0.5
1.1
50.4
0
0
0.5
-50.4
0
0
-0.5
50.1
0
0
-0.5
-50.4
-1.1
14.0
27.1
1.2
14.0
27.1
0
0
0.2
0
0.2
0
0.2
1.2
0.7
0
0.2
0
0.2
0.5
0.3
0.1
0
0.3
0.2
0.1
0
0
13.6
26.7
-32.6
-30.0
0
0.5
-29.3
0.7
0
0.2
0
-48.9
0
35.2
0
35.2
AC
74.0
AC
55.5
0
0
50.4
(37.8)
0.8
0
12.8
6.1
0
12.8
6.1
0
-50.5
(-37.8)
AC
12.8
MAIN L
REAR L
CENTER