21
CDC-R30MP/X30MP
• IC901 µPD178076GF-572-3BA (SYSTEM CONTROL) (MAIN BOARD) (CDC-X30MP)
• IC901 µPD178078GF-590-3BA (SYSTEM CONTROL) (MAIN BOARD) (CDC-R30MP)
Pin No.
Pin Name
I/O
Pin Description
1
BATT IN
I
BATT signal input
2
DFP IN
I
Front panel with/without detection signal input
3
LCD DI
I
LCD data signal input from the LCD driver IC (IC601)
4
LCD DO
O
LCD data signal output to the LCD driver IC (IC601)
5
LCD CLO
O
LCD sync clock signal output to the LCD driver IC (IC601)
6
LCD CE
O
LCD driver CE signal output to the LCD driver IC (IC601)
7
BBE1
O
BBE on/off change signal output to the electronic volume IC (IC401)
8
CDS DI
I
CDS data signal input from the mechanism control IC (IC301)
9
CDS DO
O
CDS data signal output to the mechanism control IC (IC301)
10
CDS CLO
O
CDS sync clock signal output from mechanism control IC (IC301)
11 – 15
NC
O
Not used in this set. (Open)
16
BBE2
O
BBE effect change signal output
17
NC
O
Not used in this set. (Open)
18
EVOL CLO
O
Clock signal output to the electronic volume IC (IC401)
19
EVOL DO
O
Data signal output to the electronic volume IC (IC401)
20
EVOL CE
O
CE signal output to the electronic volume IC (IC401)
21
LOC/DX
O
LOC/DX change signal output when radio seek to the tuner unit (TU101)
22
DSSA CONT
O
DSSA control signal output DSSA L/R operation: “H”
23
ACC DETECTOR
I
Power overvoltage detection signal input
24
PHONE MUTE
I
Mute control signal input from external
25
LEVELIND
I
Voltage detection signal input for level indicater
26
TEST
—
CDS test mode pin “L”: Test mode
27
AVDD
—
Power supply pin (+5 V)
28 – 30
NC
I
Not used in this set. (Connected to ground.)
31
FM/AM
I
CDC-R30MP: RDS AF signal input
S METER
CDC-X30MP: FM/AM S meter signal input
32
AVSS
—
Ground pin
33
REGCPU
—
Regulator pin for CPU power supply
34
VDD
—
Power supply pin (+5 V)
35
REGOSC
—
Regulator pin for oscillation circuit
36
X2
—
System clock oscillation connection pin (6.3 MHz)
37
X1
—
System clock oscillation connection pin (6.3 MHz)
38
GND
—
Ground pin
39
IF REQ
O
IF count request signal output from the tuner unit (TU101)
40
GND
—
Ground pin
41
AM IF
I
AM IF count signal input from the tuner unit (TU101)
42
FM IF
I
FM IF count signal input
43
VDD PLL
—
Power supply pin for PLL (+5 V)
44
FM OSC
I
FM local oscillator signal input from the tuner unit (TU101)
45
AM OSC
I
AM local oscillator signal input from the tuner unit (TU101)
46
GND PLL
—
Ground pin for PLL
47, 48
EO 0, EO 1
O
Error out signal output from the charge pomp
49
IC
—
Not used in this set. (Connected to ground.)
50
RESET
I
System reset signal input from the SW901
51
RDS CLK IN
I
CDC-R30MP: RDS clock signal input from the RDS IC (IC151)
CDC-X30MP: Not used in this set. (Connected to ground.)
52
ACC IN
I
Accessory on/off detection signal input
53
RMT IN
I
Remote control signal input from the remote control receiver IC (IC681)
54
ST IND/SD IN
I
Stereo signal input when FM/AM receive “H”: Mono, “L”: Stereo
Broadcasting station signal input when seek “H”: LOC, “L”: DX
55
NC
—
Not used in this set. (Open)
