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IC DESCRIPTION
IC, TC9318FA-058
Pin No.
Pin Name
I/O
Description
1 ~ 3
COM1 ~ COM3
O
LCD driver common output.
4 ~ 18
SEG1 ~ SEG15
O
LCD driver output.
19 ~ 20
SEG16 ~ SEG17
O
LCD driver / Key matrix timing output.
21 ~ 23
SEG18 ~ SEG20
O
Not used.
24 ~ 26
KR2 ~ KR0
27 ~ 30
K0 ~ K3
I
Key matrix input. (Pin 27 not used)
31
MOT ON
O
Motor control terminal. H : ON, L : OFF.
32
MOT HI
O
Motor speed control terminal. H : HI, L : LO.
33
MOT DIR
O
Motor rotation control terminal. H : CCW, L : CW.
34
BRAKE
O
Motor brake control terminaal. H : ON, L : OFF.
35
LOAD CTL
O
Output battery level checking singal. H : ON.
36
AM OUT
O
FM / AM control signal. H : AM, L : FM.
37
F / R CTL
O
FWD / REV control terminal. H : FWD, L : REV. (Not used)
38
MOT CH
I
Motor rotate detection terminal.
39
L. V. STOP
I
Input low voltage detectin signal. L : Low voltage.
40
P–SNSR
I
Input photo sensor signal.
41
C–SW
I
Input cassette detectoion switch. L : Exist cassette. (Connected to ground).
42
MAIN
I
Input terminal from main unit key.
43
REMOTE
I
Input terminal from remote controller key.
44
EJECT SW
I
Input cassette eject switch. L : Eject.
45
HOLD
I
Input hold switch from main unit key. H : ON.
46
BUZR
O
Output buzzer.
47
POWER MUTE
O
Output mute signal. H : ON, L : OFF.
48
TEST
I
Input test mode control. (Connected to ground).
49
WAKE
I
Input backup detection signal.
50
IF IN
I
Input IF counter.
51
TU OUT
O
Tuner operation control terminal. H : TU OFF, L : TU ON.
52
PLL OUT
O
Phase comparator output.
53
GND
–
Connected to ground.
54
FM IN
I
Input FM programmable counter.
55
AM IN
I
Input AM programmable counter.
56
VDD
–
Power supply.
57
RESET
–
Input system reset signal.
58
X OUT
–
Connected to crystal oscillator.
59
X IN
60
VXT
–
Power supply for crystal oscillation.
61
VLCD
–
Reference voltage for LCD drive.
62
C1
–
Double voltage booster for LCD drive.
63
C2
64
VEE
–
1.5V voltage supply for LCD drive.
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