
A
1
2
3
4
5
6
7
8
9
B
C
D
E
F
G
H
I
J
K
L
RX-V520/RX-V520RDS/HTR-5450/HTR-5450RDS/DSP-AX520
SCHEMATIC DIAGRAM (DSP)
E-57/J-53
★
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.
Point
1
Pin 1 of IC801
8
3
2
5
7
14
7
5
6
1
14
7
8
14
7
13
12
3
2
9
10
3
1
2
6
4
5
2
3
1
6
5
7
5
6
3
2
1
6
5
5
6
7
2
3
1
7
3
2
6
5
7
1
7
3
2
1
1SS355
RB501V-40
PIN CONNECTION DIAGRAM OF TRANSISTORS, DIODES AND ICS.
µ
PC29M33T-E1
M5220FP
NJM2904M
MSM514260C-60JS
TC74HC00AF
TC74HCU04AF
TC74VHCT08AF
AK4527VQ
PQ025EZ5MZP
1
20
40
5
1
1: OUT
3: IN
2: COM
1
7
14
1
11
12
22
23
33
34
44
1
4
8
2SC3326
DTA144EK
B
E
C
Anode
Cathode
D/A CONVERTER
CODEC
DIGITAL OUT INHIBIT
REGULATOR
DUTY
CORRECTOR
E-00/J-00
From INPUT (1)
D8
4.5
4.5
4.5
3.4
4.5
0
0
4.5
0
3.8
4.5
0
3.8
4.5
0
3.8
0
0
0
0
0
1.4
1.4
1.4
1.4
1.4
1.3
1.3
1.3
~
~
~
~
~
~
~
2.1
2.1
4.5
4.5
1.3
1.2
2.4
2.4
1.2
1.3
2.4
0
1.7
1.1
~
~
~
4.5
3.1
4.5
4.5
4.5
3.2
0
4.5
2.3
0
0
0
0
0
0
0
3.3
2.5
3.8
3.8
3.8
4.8
4.8
0
~
0.2
0
0
0
2.5
0.3
0
0
3.4
0.1
0
0
0
0.2
0
0
2.4
0
0
0
0
0
4.5
0.3
0
0
~
~
~
~
1.1
~
~
3.4
0
2.1
0
0
2.5
1.3
1.2
1.2
3.4
3.4
3.4
0.7
~
0
0
1.7
1.7
1.7
1.7
2.5
0
0
0
0
0
0
0
0
0
3.4
0
0
3.4
1.3
1.3
1.4
1.4
1.3
1.4
1.4
1.4
1.3
0
3.3
3.3
3.4
2.4
2.4
2.4
0
2.1
3.1
~
~
~
1.6
4.0
0
3.3
3.3
0
3.3
0
3.3
0
1.8
0
4.8
~
3.4
0
0
0
1.7
3.4
1.0
1.6
4.5
4.5
3.4
3.4
3.4
0
0
2.5
2.5
4.5
0
2.5 4.4 4.5
0
3.4
0
4.5
4.5
-20.2
5.0
0
0
0
0
-20.2
-20.2
21.3
2.5
2.5
21.3
2.5
2.5
2.5
0
2.5
5.0
5.0
0
2.5
2.5
5.0
0
2.5
2.5
2.5
0
5.0
2.5
-22.3
21.3
2.5
2.5
0.1
0.1
-22.3
21.3
0.1
0.1
0.1
0.1
-22.3
0.1
0.1
-20.2
-20.2
0
0
0
0
-20.2
-20.2
-20.2
0
0
-20.2
0
0
0
0
0
0
21.3
0.1
0.1
-22.3
0.1
0.1
-22.3
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
0
0
0
1.7
1.7
0.7
~
0
~
0
0
2.5
5.0
5.0
0
1.7
0
4.9
4.8
0.1
0
0
0
5.0
5.0
3.4
0
0
5.0
5.0
5.0
0
3.4
1.0
MAIN L
CENTER
MAIN L
REAR L
DIGITAL IN