30
Pin No.
Pin Name
I/O
Function
1
GND
I
GND
2
XOUT
O
8MHz Oscillator
3
XIN
I
8MHz Oscillator
4
RESET
I
CPU reset input
5
TUNED
I
Station detector input
6
STEREO
I
Stereo signal input
7
TEST
I
No Use, Tied to low
8
POWDEC
I
Power down detect
9
REMOTE
I
Remote signal input
10
PLL-CE
O
LC72131 chip enable output
11
PLL-CLK
O
LC72131 clock output
12
PLL-DATAI
I
LC72131 data input
13
PLL-DATAO
O
LC72131 data output
14
CLOCK
O
Servo command clock output
15
SUB-Q
I
Servo subq data & status input
16
DATA
O
Servo command data output
17
MUTE_D
O
Digital mute control output
18
CDPORWER
O
CD power supply
19
RDS-DATA
I
BU1922 RDS data input
20
HOLD
O
Servo search Hi output
21
SENSE
I
Servo status SENSE input
22
SQCK
O
Servo subq/sense read clock output
23
XLAT
O
Servo command latch output
24
XRST
O
Servo chip reset output
25
SCOR
I
Servo SUBQ sync input
26
RDS_CLK
I
BU1922 RDS clock input
27
MTRSNS
I
Tape motor reel sense input
28
SLEEP
O
Digital Amp sleep control
29
MOTOR
O
Tape control output for Motor
30
SOL
O
Tape control output for Solenoid
31
SPRELAY
O
Power on/off RELAY control
32
PLYMUTE
O
Tape play back mute signal output
33
REC/PB
O
Tape control output for REC/PB
34
DOLBYNR
O
Tape control output for DOLBY NR
35
BIAS
O
Tape control output for BIAS
36
MDMUTE
O
MD/REC ON mute output
37
VOL-CLK
O
M62442 audio control clock output
38
VOL-DATA
O
M62442 audio control data output
39
VOL-STB
O
M62442 audio control strobe output
40
KEYIO-1
I
AD key input (16 keys)
41
KEYIO-2
I
AD key input (16 keys)
42
BANDAREA
I
Band area option
43
CDTOUCH
I
CD door open/close touch sensor
44
OP/CL SW
I
CD loading open/close sw
open = 2.5V, close = 0V
6-17. IC PIN FUNCTIONS
• IC201 MASTER CONTROL (TC9901) (DYSPLAY Board)
