A
B
C
D
E
F
G
H
I
J
K
L
RX-V3300/DSP-AZ2
77
SCHEMATIC DIAGRAM (OPERATION)
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.
x: NOT USED
O: USED / APPLICABLE
52
Display
controller
Segment
digit
select/
output
circuit
Serial
receive
circuit
Digit
output
circuit
Clock
generator
DIG11/
SEG42
51 DIG12/
SEG41
50 DIG13/
SEG40
49 DIG14/
SEG39
48 DIG15/
SEG38
47 DIG16/
SEG37
46 DIG17/
SEG36
45
SEG35
XOUT 6
Vcc1 8
Vcc2 18
Vss 5
Vp 64
XIN 7
CS
SCK 3
SDATA 4
RESET 1
SEG00
44
9
SEG34
SEG26
17
19
SEG25
Segment
output
circuit
Display code
RAM
(8-bit x 60)
CGROM
(35 bit x 166)
CGROM
(35 bit x 16)
code
select
Code
write
Code/
command
control
circuit
DIG00
63
53
DIG10
IC901: M66003-0101FP
FL Display Driver
2
data
timing
clock
dot data
write
scan pulse
IC701: ADM202JRN-REEL7
RS-232 Driver/Receiver
1
3
2
16
C1+
C1–
Vcc
V+
11
14
T1in
T1out
+5V
→
+10V
Voltage Boost
Circuit
4
5
6
C2+
C2–
V–
+10V
→
–10V
Voltage Inverter
T1
10
7
T2in
T2out
T2
12
13
R1in
R1out
R1
9
8
15
R2in
R2out
GND
R2
IC801: TC4066BP
Quad Analog Switch/Multiplexer
1
2
3
4
5
6
7
IN/OUT1
OUT/IN1
OUT/IN2
IN/OUT2
CONT2
CONT3
VSS
14
13
12
11
10
9
8
VDD
CONT1
CONT4
IN/OUT4
OUT/IN4
OUT/IN3
IN/OUT3
8
7
6
5
4
3
2
1
OUT1
–
Vcc
+IN2
–
IN2
OUT2
+Vcc
–
IN1
+IN1
IC802: NJM2068L-D
Dual OP-Amp
IC803:
µ
PC4570HA
Dual OP-Amp
Vcc
Vo1 -Vm1 +Vm1 VEE +Vm2 -Vm2 Vo2
Vcc
1
2
3
4
5
6
7
8
9
+
+
-
-
1
2
IC804: NJM4556AL
Dual OP-Amp
8
2, 6
3, 5
1, 7
4
V+
–INPUT
+INPUT
V–
OUTPUT
1
4
5
6
14
3
5
6
2
3
2
8
8
7
1
4
3
7
6
9
5
2
8
2
3
4
1
5
6
8
7
4
11
12
13
7
10
9
BASS EXTENSION
TONE
CONTROL
REC OUT
SELECTOR
PHONES
MUTE
FL DRIVER
FL DISPLAY
INPUT
SELECTOR
VOLUME
P
age 76
to FUNCTION
D1
Page 80
to POWER (3)
G4
Page 76
to FUNCTION
I7
P
age 78
to VIDEO
(5)
I2
P
age 80
to PO
WER (1)
I4
P
age 78
to VIDEO
(1)
E5
P
age 76
to FUNCTION
B1
P
age 75
to DSP
H5
-27.5
~
~
~
-34.4
-34.4
-34.4
-34.4
-34.7
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~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
-27.5
-27.5
-27.5
4.9
0
4.8
~
~
4.8
~
~
~
~
~
-34.7
0
0
-34.7
~
~
~
~
~
~
~
~
~
~
~
~
-34.6
-34.6
~
~
~
~
~
~
4.8
0
0
0
4.8
4.8
4.8
4.3
~
4.8
~
~
4.8
~
4.7
4.7
4.8
4.6
4.8
4.3
-34.4
4.8
-34.6
-34.4
4.8
-34.6
-34.4
4.8
-34.6
-27.9
-35.0
~
4.8
~
4.9
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
4.8
-34.6
-35.0
-8.5
8.5
0
0
0
0
0
0
0
-8.5
-8.5
0
0
0
0
-8.5
-8.5
-8.5
-11.8
11.4
0
0
0
-11.8
0
0
0.7
0
0
0.7
9.0
9.6
0
0
0
-9.4
0
0
0
9.0
0
0
0
0
0
0
-10.6
11.4
-9.4
0
8.5
8.5
0
MAIN L
0
4.1
4.1
4.8
4.8
3.5
0
0
0
0
0
0
0
11.4
11.4
11.4
11.4
4.9
11.4
11.1
10.8
0
0
4.9
11.4
11.1
10.8
4.9
0
4.8
4.9
0
-8.8
0
4.9
7.2
9.5
2.4
0
9.1
-9.3
0
-4.5
0
0
MAIN L
Page 80
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I2
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