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1. Reception Bands
Band
Tuning Range
FM
87.50
~
108.00MHz 50kHz
AM
531
~
1602kHz
3. Microprocessor : (IC601,LC867248A)
3-1. Pin description
Pin. No.
Name
1
CE
2
RESET-OUT
3
DO
4
DI
5
CLK
6
DATA-OUT
7
DATA-IN
8
CLK-OUT
9
N/C
10
STB-OUT
11
BUSY-IN
12
RESET
13
POWER-DOWN
14
GND
15
VSS
16
X1
17
X2
18
VDD1
19~21
K1~K3
22
K4
23
L/M
24
EX.BASS
25
DECK-MODE
26
BAND-SW
27
GND
28
SP PR IN
29
REMOTE IN
30
VR+
31
VR-
32
PIC-UP
33
PIC-DOWN
34
DISC-COUNT
35
TURNTABLE SW
36
TRAY-OPEN
37
TRAY-CLOSE
CIRCUIT DESCRIPTION
Step
RF
IF
25kHz +10.7MHz
9kHz
9kHz
+450kHz
I/O
O
CE output to LC72131D(TUNER,IC103).
I
LC867240A(CD,IC03) reset out.
I
Data input from LC72131D(TUNER,IC103).
O
Data output to LC72131D(TUNER,IC03).
O
Clock output to LC72131D and M66004SPA(FRONT,IC801).
O
Sub CPU(CD PCB,IC03) interface data output.
I
Sub CPU(CD PCB,IC03) interface data input.
O
Sub CPU(CD PCB,IC03) interface clock output.
-
No used.
O
Strobe output.
I
Busy input.
I
Reset signal input.
I
Power down input.
-
Ground.
-
Ground.
-
Xtal 6.0MHz .
-
Xtal 6.0MHz .
-
Power supply(+5.0V).
I
Key input(K1~K3).
-
Connected to VCC.
I
Level meter.
I
Extra bass ON/OFF signal input.
I
Deck mode switch input.
I
Band switch input.
-
Ground.
I
Speaker protection input.
I
Remocon signal input.
I
Volume encoder(VR801) input.
I
Volume encoder(VR801) input.
I
Input port of up switch for pick up.
I
Input port of down switch for pick up.
I
Disc counter switch input.
I
Turntable switch input.
I
Tray open switch input.
I
Tray close switch input.
RXD-V323
2. TUNER preset frequency
M.ch
Frequency
1
FM
87.5MHz
2
FM
90.0MHz
3
FM
98.0MHz
4
FM
106.0MHz
5
FM
108.0MHz
6
AM
531kHz
7
AM
603kHz
8
AM
999kHz
9
AM
1404kHz
10
AM
1602kHz
11
FM
87.5MHz
12
FM
87.5MHz
13
FM
87.5MHz
14
FM
87.5MHz
15
FM
87.5MHz
Description
M.ch
Frequency
16
FM
87.5MHz
17
FM
87.5MHz
18
FM
87.5MHz
19
FM
87.5MHz
20
FM
87.5MHz
21
FM
87.5MHz
22
FM
87.5MHz
23
FM
87.5MHz
24
FM
87.5MHz
25
FM
87.5MHz
26
FM
87.5MHz
27
FM
87.5MHz
28
FM
87.5MHz
29
FM
87.5MHz
30
FM
87.5MHz
Active
H
L
O
O
O
On
Off
O
5
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