A
1
2
3
4
5
6
7
8
9
10
BCDEFGH I JK
L MN
RX-V2400/RX-V2400RDS/DSP-AX2400/RX-V1400/RX-V1400RDS/HTR-5690/DSP-AX1400
SCHEMATIC DIAGRAM (OPERATION)
91
★ All voltages are measured with a 10MΩ/V DC electronic 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.
1
4
23
8
4
3
2
4
6
5
7
REC OUT
SELECTOR
MIC
HEADPHONE AMP
FL DISPLAY
FL DRIVER
IR
REMOTE
INPUT
SELECTOR
Page 93
to POWER (2)
E8
Page 89
to FUNCTION
K1
Page 89
to FUNCTION
I1
Page 90
to FUNCTION
J1
RX-V1400/RX-V1400RDS/HTR-5690/DSP-AX1400
: Page 95
to VIDEO (1)
RX-V2400/RX-V2400RDS/DSP-AX2400
: Page 94
Page 90
to FUNCTION
C1 Page 87
to DSP
E1
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
IC851: M66003-0101FP
FL Display Driver
2
data
timing
clock
dot data
write
scan pulse
Y4
B2
GND 3
IC853: SN74AHCT1G32DCKR
2-Input or Gate
Vcc5A1
IC854: NJM4556AL
Dual OP-Amp
8
2, 6
3, 5
1, 7
4
V+
–INPUT
+INPUT
V–
OUTPUT
IC855: µPC4570G2
Dual OP-Amp
2400
1400
–+
OUT
1
–IN
1
–V
CC
+V
CC
OUT
2
1
2
3
4
5
+IN
1
–IN
2
+IN
2
– +
6
7
8
2400 only
E5
E5
2400 only
-26.3
-26.1
-14.5
-33.1
-21.3
-23.8
-21.6
-28.3
-28.3
-28.3
-28.3
-28.3
-23.9
-23.9
-23.9
-23.9
-23.6
-26.3
-26.1
-33.1
-33.1
-33.1
-33.1
-30.6
-30.5
-30.7
-30.7
-30.7
-30.7
-30.8
-30.8
-30.8
-30.8
-30.8
-30.8
-30.8
-30.8
-30.8
-25.7
-30.9
-30.9
-30.7
-28.3
-28.3
-28.4
-28.4
-30.6
-30.6
-30.6
-28.3
-28.2
-33.1
-33.1
-33.1
-25.7
-25.7
-30.5
-33.3
5.4
-30.5
-30.8
5.4
5.1
-33.1
-30.7
-23.9
-23.9
-26.1
-33.1
-33.1
-33.1
-30.6
-28.3
-28.3
-25.6
-28.2
-28.7
-26.3
-30.8
-28.2
5.4
-28.6
-28.5
5.4
-26.1
-28.7
5.4
4.7
4.8
3.6
3.2
3.1
3.5
-28.5
-28.3
5.4
-28.5
-28.3
5.4
-26.1
-25.6
-33.1
-28.3
-28.3
-21.6
-23.6
-21.3
-33.1
5.4
2.3
2.4
0
4.9
4.9
3.2
3.1
-30.7
-30.8
-30.8
-30.8
-30.8
-30.8
-30.8
-30.8
-30.8
-30.8
-30.9
-30.9
-30.7
-30.7
-33.3
-30.8
-23.6
-28.3
-23.9
-28.3
-28.3
-28.4
-30.6
-28.3
4.7
-30.6
-33.1
-30.6
-28.3
-28.3
-33.1
-26.2
5.1 0
-30.6
-30.8
4.9
0
0.30.1
0.3
0
4.9
0
0.7
9.7 9.0
0.7
0
0
0
9.0
0
0
0
-9.7 -9.4
-9.4
0
0
0
11.5
11.5
0
0
0
0
-12.0
0
0
0
x: NOT USED
O: USED / APPLICABLE
x: NOT USED
O: USED / APPLICABLE
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