A
1
2
3
4
5
6
7
8
9
10
B
C
D
E
F
G
H
I
J
K
L
M
N
RX-V459/HTR-5940/HTR-5935/DSP-AX459
73
★
All voltages are measured with a 10M
Ω
/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.
OPERATION
220K
s13
100K
6800P
6800P
TC74HC4051AF
TC74HC4051AF
TC74HC4051AF
to POWER CABLE
to MAIN (1)_W1029
Page 74
H7
to DSP_CB3
P
age 69
B8
to FUNCTION (1)_CB205
Page 72
E7
to DSP_CB5
Page 69
B5
to TRANSFORMER
to FUNCTION (1)_CB203
P
age 72
E1
to FUNCTION (2)_CB290
Page 72
H3
to FUNCTION (1)_CB201
Page 72
C9
to MAIN (2)_W1006
Page 74
J8
to FUNCTION (3)_W3005A,W3005B
R, L models
U, C, T, K, A, G, J models
Page 72
J9
to POWER TRANSFORMER
OPERATION (4)
OPERATION (1)
OPERATION (5)
OPERATION (3)
OPERATION (6)
OPERATION (2)
FL DRIVER
IC251 :
LA73050-TLM-E
Analog amplifier
35
N.C.
33
VOUT1
31
VOUT2
30
N.C.
29
VOUT3
32
GND
36
N.C.
34
+VCC1
2
N.C.
4
DCCNT1
6
VIN2
7
MUTE1
8
VIN3
5
GND
1
N.C.
3
VIN1
27
-VCC2
25
+VCC2
23
GND
22
VOUT5
21
N.C.
24
VOUT4
28
-VCC1
26
N.C.
10
N.C.
12
VIN4
14
GND
15
VIN5
16
MUTE2
13
DCCNT2
9
N.C.
11
N.C.
19
-VCC3
20
VOUT6
18
-VCC4
17
VIN6
DR
6dB
+Vcc
DR
6dB
DR
6dB
DR
6dB
+Vcc
DR
6dB
DR
6dB
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
IC301
: M66003-0131FP
FL display driver
2
data
timing
clock
dot data
write
scan pulse
IC302
: TC4013BP
Dual D-type flip flop
4
RESET1
1
Q1
6
SET1
5
DATA1
CL
3
CLOCK1
CL
CL
CL
CL
CL
2
Q1
10
RESET2
13
Q2
8
SET2
9
DATA2
7
VSS
14
VDD
11
CLOCK2
12
Q2
CL
CL
CL
CL
CL
CL
IC253~255
: TC74HC4051AF
Analog multiplexers/demultiplexers
14
15
16
9
13
12
11
10
1
2
3
4
5
7
6
8
4
6
7
5
INH
GND
V
EE
V
CC
1
0
3
A
B
C
2
COM
RX-V459/HTR-5940/DSP-AX459 models
HTR-5935 model
no_use (HTR-5935 model)
no_use (HTR-5935 model)
RX-V459/HTR-5940/
DSP-AX459 models
HTR-5935 models
RX-V459/DSP-AX459 models
RX-V459/DSP-AX459 models
D 3 0 1 5
VU99500
MA8091-M9.1V
VU99500
MA8091-M9.1V
VU99500
MA8091-M9.1V
VU99500
MA8091-M9.1V
VU99500
MA8091-M9.1V
VU99500
MA8091-M9.1V
VU99500
MA8091-M9.1V
VU99470
MA8082-H8.5V
