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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-V2700/DSP-AX2700
123
★
All voltages are measured with a 10M
Ω
/V DC electronic voltmeter.
★
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.
FL 1/2
5.0
-23.5
5.0
-21.4
-21.9
-25.6
-29.3
-21.3
-23.4
-25.7
-25.7
-27.5
-27.5
-27.5
-27.5
-27.5
-27.5
-27.5
-27.5
-27.5
-27.5
-27.5
-27.3
-29.3
-25.2
-22.9
-25.2
-23.2
-23.5
-25.2
-25.5
-21.2
-21.2
-21.5
-27.5
-27.2
-27.5
-27.4
-23.4
-21.5
-23.5
-23.5
-22.9
-29.5
-27.5
-27.5
-27.4
-21.4
-27.5
-27.5
-27.5
5.0
0
0
4.9
4.9
2.5
0
0
0
0
0
0
0
0
0
0
0
0
-0.1
0
0
0
0
0
2.5
2.6
0
-25.5
-25.5
-23.4
-21.4
-23.4
-25.5
-27.5
-27.3
-27.0
5.0
5.0
-23.0
5.0
-27.0
5.0
-27.3
-23.4
-21.7
-21.7
-27.3
-27.5
-25.7
-25.7
-27.5
-27.5
-27.5
-27.5
-27.5
-27.5
-27.5
-27.5
-27.5
-27.5
-27.5
-27.0
-22.9
0
5.1
5.0
-23.5
-23.5
-21.5
-23.4
-27.4
-27.5
-27.2
-27.5
-21.5
-21.2
-21.2
-25.5
-25.2
-23.5
-23.2
-25.2
-22.9
-25.2
-23.4
-21.3
-29.5
-27.5
-27.5
-21.4
-21.4
-27.5
-27.5
-27.5
-25.5
-25.5
-23.4
-21.4
-23.4
-25.5
-19.3
-21.2
-19.3
-23.3
-25.3
-27.3
-25.3
-27.3
-23.3
-25.3
-27.3
-25.3
-27.5
-27.3
-23.4
-21.4
-23.0
-23.5
-20.9
-25.5
-25.4
-21.4
-21.4
-21.4
-27.4
-27.4
-26.7
-27.4
-23.4
-25.4
-21.4
-23.5
-21.4
-22.9
-27.0
-27.1
-27.5
-27.5
-27.5
-27.5
-27.5
-27.5
-27.5
-27.5
-27.5
-27.5
-27.5
-27.5
-27.5
-27.5
-21.7
-21.7
-21.7
-21.7
-21.7
-21.7
-27.5
-27.5
-27.5
-27.5
-27.5
-27.5
-27.5
-27.5
-27.5
-27.5
-27.5
-27.5
-27.5
-27.5
-27.5
-29.3
-27.5
-23.5
-23.5
-20.9
-25.5
-25.4
-21.4
-21.4
-21.4
-27.4
-27.4
-27.5
-27.4
-23.4
-25.4
21.4
-23.5
-21.4
-23.5
-27.5
-25.3
-27.3
-25.3
-23.3
-27.3
-25.3
-27.3
5.0
0.1
0.1
4.9
4.9
2.4
2.4
0
-25.3
-23.3
-19.3
-21.2
-19.3
-27.3
-27.5
-27.1
5.0
-20.9
5.0
-26.7
5.0
-22.9
-23.4
-27.5
-23.5
-27.5
-27.5
-25.5
-27.5
-23.5
11.2
10.5
10.9
0.1
4.9
0
11.2
11.2
10.6
10.9
0.1
4.9
4.2
5.1
10.0
0.1
-9.7
9.5
0
2.6
-2.4
5.1
0
0
-9.2
5.1
4.9
0.1
5.1
0
11.2
FL (1)
FL (6)
FL DRIVER
FL DRIVER
Key input (A-D) pull-up resistance 10k-ohms
RX-V2700 (U, C, R, T, K, A, B, G, E, L models)
Ohm
V
Key0
(124pin/AN156)
Key1
(123pin/AN157)
0
0-0.26
NIGHT
STRAIGHT/
EFFECT
+1.2k
0.27-0.75
ZONE CONTROLS
A/B/C/D/E
+1.2k
0.76-1.22
TUNING MODE
–
+1.8k
1.23-1.76
MEMORY
TONE CONTROL
+2.7k
1.77-2.28
FM/AM
AUDIO SELECT
+3.3k
2.29-2.75
PRESET/
TUNING
PURE DIRECT
+4.7k
2.76-3.24
PRESET/TUNING
>
–
+8.2k
3.25-3.75
PRESET/TUNING
<
–
+18.0k
3.76-4.25
–
–
+47.0k
4.26-4.72
–
–
Key input (A-D) pull-up resistance 10k-ohms
DSP-AX2700 (J model)
Ohm
V
Key0
(124pin/AN156)
Key1
(123pin/AN157)
0
0-0.26
NIGHT
STRAIGHT/
EFFECT
+1.2k
0.27-0.75
–
A/B/C/D/E
+1.2k
0.76-1.22
TUNING MODE
–
+1.8k
1.23-1.76
MEMORY
TONE CONTROL
+2.7k
1.77-2.28
FM/AM
AUDIO SELECT
+3.3k
2.29-2.75
PRESET/
TUNING
PURE DIRECT
+4.7k
2.76-3.24
PRESET/TUNING
>
–
+8.2k
3.25-3.75
PRESET/TUNING
<
–
+18.0k
3.76-4.25
–
–
+47.0k
4.26-4.72
–
–
*
INTERNAL 400k W PULL-UP RESISTOR
ON EACH TTL/MOS INPUT
**
INTERNAL 5k W PULL-DOWN RESISTOR
ON EACH RS-232 INPUT
VCC
+5V TO +10V
VOLTAGE DOUBLER
+5V TO –10V
VOLTAGE INVERTER
C1+
C1–
V+
V–
C2+
C2–
T1
ADM2xx
T2
R1
R2
0.1
∝
F
0.1
∝
F
0.1
∝
F
GND
TTL/CMOS
OUTPUTS
R1OUT
R2OUT
T1OUT
T2OUT
R1IN
R2IN
T1IN
T2IN
TTL/CMOS
INPUTS
*
RS-232
OUTPUTS
RS-232
INPUTS
**
0.1
∝
F
+5V INPUT
0.1
∝
F
EN
SHDN
(ADM242)
(ADM222, ADM242)
IC951
: ADM222ARZ
High speed RS-232 line drivers/receivers
IC901, 902
: PT6302LQ
VFD driver/controller IC with caracter RAM
CONTROL
CIRCUIT
TIMING
GENERATOR 1
TIMING
GENERATOR 2
OSCILLATOR
COMMAND
DECODER
8-BIT
SHIFT
REGISTER
DCRAM
16 words x 8 bits
VDD
ADDRESS
SELECTOR
WRITE
ADDRESS
COUNTER
READ
ADDRESS
COUNTER
DIGITAL
CONTROL
DUTY
CONTROL
GRID
DRIVER
PORT
DRIVER
AD
DRIVER
SEGMENT
DRIVER
CGROM
248 words x 35 bits
CGRAM
8 words x 35 bits
ADRAM
16 words x 2 bits
SG1
SG35
AD1
AD2
P2
GR1
GR16
P1
VSS
VEE
RSTB
DIN
CLKB
CSB
OSCI
OSCO
to PO
WER (1)_CB12
P
age 118
B5
to OPERA
TION (5)_CB809
RS-232C
P
age 116
I4
to OPERATION (4)_CB12
Page 116
K3
to OPERA
TION (1)_CB801
P
age 116
B2
to FL (2)_CB970
Page 124
I4
to FUNCTION (1)_CB405
Page 112
C8
Содержание DSP-AX2700
Страница 5: ...RX V2700 DSP AX2700 5 RX V2700 DSP AX2700 RX V2700 K model RX V2700 A model RX V2700 B model ...
Страница 6: ...RX V2700 DSP AX2700 6 RX V2700 DSP AX2700 RX V2700 G E models RX V2700 L model DSP AX2700 J model ...
Страница 105: ...A B C D E F G H I J 1 2 3 4 5 6 7 RX V2700 DSP AX2700 105 FL 2 P C B Side B ...
Страница 169: ...RX V2700 DSP AX2700 170 ...
Страница 170: ...RX V2700 DSP AX2700 171 RX V2700 DSP AX2700 ...
Страница 171: ...RX V2700 DSP AX2700 172 RX V2700 DSP AX2700 ...
Страница 173: ...RX V2700 DSP AX2700 ...