A
1
2
3
4
5
6
8
RX-V320
B
C
D
E
G
H
I
J
K
L
7
55
■
SCHEMATIC DIAGRAM [INPUT (2/2)]
★
All voltages are measured with a 10M
Ω
/V DC electric volt meter.
★
Components having special characteristics are marked and
must be replaced with parts having specifications equal to those
originally installed.
★
Schematic diagram is subject to change without notice.
Conditions
• INPUT
→
CD
• VOLUME
→
minimum(–
∞
)
• IMPEDANCE
SELECTOR
→
Left
• PRO LOGIC
→
On
–
+
OUT
1
–IN
1
–V
CC
+V
CC
OUT
2
1
2
3
4
5
+IN
1
–IN
2
+IN
2
–
+
6
7
8
IC401~403 : uPC4570C
Dual OP-Amp
IC102 : LC78213
Analog Function Switch
L6
LCOM3
L5 7
8
9
L7
LCOM4
10
11
V
DD
19
V
SS
16
V
EE
12
RES 18
S 17
LEVEL SHIFTER
LATCH
SHIFT REGISTER
R6
RCOM3
R5
R7
RCOM4
20
24
23
22
21
CONTR
OL
15 CL
14 D1
13 CE
L4
LCOM2
L3 4
5
6
R4
RCOM2
R3
27
26
25
L2
LCOM1
L1 1
2
3
R2
RCOM1
R1
30
29
28
IC103 : LC78212
Analog Function Switch
1
2
3
4
30
29
28
27
5
6
7
8
26
25
24
23
9
10
11
22
21
19
16
12
14
18
15
17
13
20
L1
L2
L3
LCOM1
L4
L5
L6
LCOM2
L7
L8
LCOM3
V
DD
Vss
V
EE
RES
S
R1
R2
R3
RCOM1
R4
R5
R6
RCOM2
R7
R8
RCOM3
D1
CL
CE
LEVEL SHIFTER
LATCH
SHIFT RESISTER
CONTROL,
REAR L
DIGITAL IN
MAIN L
CENTER
LFE
4.7
0
0
0
0
0.3
0.3
0
0
0
0.3
0.3
0.7
0.7
0.5
0.5
1.7
10.6
1.7
0
0
0
2.5
0
0
0
3.1
3.1
4.7
0
0
0
0
-11.9
0
0
0
11.8
0
0
0
-11.9
0
0
0
11.8
0
0
0
-11.9
0
0
0
11.8
0
-0.1
10.5
5.0
4.9
19.4
-19.9
0
-0.1
0.3
4.7
4.7
4.7
0
0
0
0
0
4.0
4.0
0.3
4.7
AC
31.3V
-0.1
31.3
-31.7
-0.1
AC49.1V
AC9.7V
OPTICAL
SIGNAL
DETECTOR
VOLUME AMP
MOTOR DRIVE
POWER SUPPLY
DIGITAL
INPUT
SELECTOR
EXT.DECODER
INPUT
OPTICAL
COAXIAL
OPTICAL
W102
#1
#4
VOLUME
#11
W721
FR
OM PO
WER
TRANSFORMER
1
OUT1
2
–
IN1
3
+IN1
4
–
Vcc
5
+IN2
6
–
IN2
7
OUT2
8
+Vcc
+
–
+
–
IC104 : NJM2068LD
IC108,109 : M5220L
Dual OP-Amp
IC352 : HD74HC153P
Dual 4 to 1 Data Selectors
IC351: TC74HCU04AP
Hex Inverters
IC404 : LB1641
Motor Driver
IC101 : LC78211
Analog Function Switch
L2
L4
L3
LCOM1
L1 1
2
3
4
5
L6
LCOM2
L5 6
7
8
L8
LCOM3
L7 9
10
11
V
DD
19
V
SS
16
V
EE
12
RES 18
S 17
LEVEL SHIFTER
LATCH
SHIFT REGISTER
R2
R4
R3
RCOM1
R1
R6
RCOM2
R5
R8
RCOM3
R7
20
22
30
29
28
27
26
25
24
23
21
CONTR
OL
15 CL
14 D1
13 CE
PIN CONNECTION DIAGRAM OF DIODES, TRANSISTORS AND IC’s.
M5220L
1SS133
1SS176
HSS104
Anode
Cathode
HZS5C2TD
HZS11B2TD
2SC2878(A,B)
E
C
B
LC78211
LC78212
LC78213
BU2090
HD74HC153P
NJM2068LD
8
2SA893A(D,E)
DTA144ES
E
C
B
TC74HCU04AP
uPC4570C
uPC4570HA
9
LB1641
10
V
O1
2
–Vm
1
3
+Vm
1
4
V
EE
5
+Vm
2
6
–Vm
2
7
V
O2
8
V
CC
9
V
CC
1
1
–
+
–
+
2
IC105,106 : uPC4570HA
Dual OP-Amp
2
3
P1
5
IN 1
1
GND
4
VZ
6
IN 2
OUT
1
8
VCC 2
10
OUT
2
9
P2
INPUT LOGIC
PRE DRIVER
7
VCC 1
15
STROBE
2G
2
B
SELECT
14
A
SELECT
13
12
11
10
9
OUTPUT
2Y
1
STROBE
1G
3
4
5
6
7
OUTPUT
1Y
16
VCC
8
GND
DATA INPUTS
DATA INPUTS
2C3
2C2
2C1
B
A
2C0
2Y
2G
B
A
1C3
1C2
1C1
1C0
1Y
1G
B
A
B
A
INPUTS
SELECT
STROBE
Y
H: High Level
L: Low Level
X: Don't care
L
C0
C1
C2
C3
G
H
L
L
L
L
A
X
L
H
L
H
B
X
L
L
H
H
OUTPUTS
w w w
.
x i a o y
u 1 6 3 .
c o m
Q Q
3 7 6 3 1 5 1 5 0
9
9
2
8
9
4
2
9
8
T E L
1 3 9 4 2 2 9 6 5 1 3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
