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Pin No.
Pin Name
I/O
Pin Description
1
R-COUNT
I
PLL IC count data output
2
R-CE
O
PLL IC chip enable output.
3
R-CLK
O
PLL IC clock output.
4
R-DATA
O
PLL IC data output.
5
R-MUTE
O
Tuner mute signal output.
6
RADIO
O
Radio block power supply control signal output L : Radio on
7
M-NAR
I
Melody IC NAR signal input
8
M-RST
O
Melody IC reset signal output
9
M-ST
O
Melody IC strobe signal output
10
M-I0
O
Melody IC interface 0 data output
11
M-I1
O
Melody IC interface 1 data output
12
M-I2
O
Melody IC interface 2 data output
13
FL-RST
O
Reset signal output to the fluorescent indicator tube display drive IC (IC601)
14
CP
O
Clock pulse output to the fluorescent indicator tube display drive IC (IC601)
15
CD-LAMP
O
CD lamp (LAMP board) on/off signal output
16
DA
O
Serial data output to the fluorescent indicator tube display drive IC (IC601)
17
CS
O
Chip enable signal output to the fluorescent indicator tube display drive IC (IC601)
18,19
NC
—
Not used
20
FL-CON
O
FL 5V regulator control signal output
21
RY-CON
O
Relay (RY901 on POWER board) on/off control signal output
22 – 27
NC
—
Not used
28
JOG-A
I
Rotary encoder (RV801) input terminal (A/D input)
29
JOB-B
I
Rotary encoder (RV801) input terminal (A/D input)
30
RST
I
System reset signal input from the reset signal generator (IC403) “L”: reset
31
EXTAL
O
Main system clock output terminal (8 MHz)
32
XTAL
I
Main system clock input terminal (8 MHz)
33
VSS
—
Ground terminal
34
TX
I
Sub system clock input terminal (32.768 kHz)
35
TEX
O
Sub system clock output terminal (32.768 kHz)
36
AVSS
—
Ground terminal (for A/D converter)
37
AVREF
—
Reference voltage (+3.3V) input terminal (for A/D converter)
38
R-SHIFT
O
System clock shift output.
39
INIT
O
Destination check output
40
SIMUKE
I
Destination setting terminal
41 – 43
KEY1-KEY3
I
Key input terminal (A/D input)
44
C-MUTE
O
Muting on/off control signal output for the CD playback signal “L”: muting on
45
OP/CL
I
CD tray open/close detect input.
46
INPUT1
O
Loading motor control output.
47
INPUT2
O
Loading motor control output.
48
RDS-CLK
O
RDS serial data transfer clock signal input from the RDS decoder
49
RDS-DATA
O
RDS serial data input from the RDS decoder
50
RDS-QUAL
O
RDS QUAL input from the RDS decoder (Not used)
51
C-SQCK
O
Sub-code Q data reading clock signal output to the CD DSP IC (IC702)
52
C-SQSO
O
Sub-code Q data input from the CD DSP IC (IC702)
53
NC
—
Not used
54
SENSE2
I
Internal status (SENSE) input from the CD DSP IC (IC702)
55
SENSE1
I
Internal status (SENSE) input from the CD DSP IC (IC702)
6-1. IC PIN DESCRIPTION
• IC801 CXP84332-222Q (SYSTEM CONTROL)
SECTION 6
DIAGRAMS