10
WM-GX410
SECTION 4
DIAGRAMS
Pin No.
Pin name
I/O
Description
1
XOUT
O
Connected to 75kHz Crystal oscillator
2
TEST 2
I
For Test (Connected to GND)
3
MECHA REC
I
REC mode signal input
4 to 6
PA3 to 1
I
Control key inputs
7
KO2
O
Key source signal output
8
KO1
O
Key source signal output
9
REC CTRL
O
REC control signal output
L: REC
10
AMP ON
O
Power amplifier on/off control signal output
11
SD
I
SD input
12
COMP
I
COMP input
13
PUSH
I
Tuning dial (S701) common switch signal input
14
MECHA TAPE
I
Tape on/off detection signal input
15
RADIO ON
O
Radio on/off control signal output
16
BAND
O
Band select signal output
17
TUNING-B
I
Tuning dial (S701) B phase signal input
18
TUNING-A
I
Tuning dial (S701) A phase signal input
19
MUTE
O
Mute signal output
20
BEEP
O
Beep signal output
21
BACK UP VOLTAGE
I
Back-up voltage detection signal input
22
BATT LEVEL
I
Battery voltage detection signal input
23
VERSION
I
Destination select signal input
24
GND
—
Ground terminal
25
TUNER MODE INPUT
I
Tuning mode select switch (S707) signal input
26
2X INPUT
I
Tape speed select switch (S706) signal input
27
PAUSE
I
Pause switch (S702) signal input
28
HOLD
I
HOLD switch (S705) signal input
29
SHUTDOWN
O
Not used (open)
30
MOTOR BRAKE
O
Motor brake control signal output
31
MOTOR CTL
O
Motor control signal output
32 to 44
S13 to S1
O
LCD driver segment output terminal
45 to 48
COM4 to 1
O
LCD driver common output terminal
49
TU
O
Output for tuning voltage generator
50 to 53
DBR4 to 1
I
For LCD power supply booster
54
RESET
I
System reset signal input
55
HCTR NC
—
Not used (open)
56
VDD
—
Power supply terminal
57
FM IN
I
FM VCO input
58
AM IN
I
AM VCO input
59
GND
—
Ground terminal
60
E0
O
Tuning signal (PWM) output
61
AIN
I
LPF amplifier input
62
AOUT
O
LPF amplifier output
63
TEST 1
I
For test (connected to ground)
64
XIN
I
Connected to 75kHz Crystal oscillator
4-1. IC Pin Function Descriptions
IC701 (SYSTEM CONTROL/LCD DRIVE) LC723483 W-9C33-E
