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IC DESCRIPTION
IC, TC9327F-017
Pin No.
Pin Name
I/O
1 ~ 4
COM1~COM4
O
LCD common output 1~4.
5 ~ 21
SEG1 ~ SEG17
O
LCD segment output 1~17.
Input pin for switching J , U , E , H areas.
A-SET1
22,23
A-SET1,2
I
A-SET2
24
IF 10.7
I
"H": IF 10.75 MHz. "L": 10.7 MHz.
25
REC ENA
I
Input pin for REC enable. "H": REC enable. "L": REC disable.
26
DOLBY ENA
I
Input pin for DOLBY enable. "H": DOLBY enable. "L": DOLBY disable.
27
F. REC P
I
"H": FWD REC shift disable. "L": enable.
28
R. REC P
I
"H": REV REC shift disable. "L": enable.
29
MS IN
I
Pin to input music sensor signal. "H": music exist. "L": blank.
30
TIMING SW
I
Pin to input for mechanism operation detection.
31
MOT CH
I
Pin to input for motor activation detection.
32
L.V. STOP
I
Stop mechanism operation and hold key input when low voltage is detected.
33
HOLD
I
"H": Hold OFF. "L": Hold ON.
34
UP
I
Up key input pin. "H": Key ON. "L": Key OFF.
35
DOWN
I
Down key input pin. "H": Key ON. "L": Key OFF.
36
ENTER
I
Enter key input pin. "H": Key ON. "L": Key OFF.
37
C-SW
I
Input pin for detecting the presence of cassette. "H": C-SW OFF. "L": C-SW ON.
38
MOT ON
O
Pin to output motor control. "H": Motor ON. "L": Motor OFF.
39
MOT HI
O
Pin to control motor. "H": Motor high speed. "L": Motor normal speed.
40
MOT DIR
O
Pin to output for motor rotation direction. "H": Clockwise. "L": Counter Clockwise.
41
BRAKE
O
Pin to output brake control for motor. "H": Brake ON. "L": Brake OFF.
42
REMOTE
I
Remote control key input pin.
43
MAIN
I
Main unit key input pin.
44
FM OUT
O
Pin to output for FM mode. "H": FM mode. "L" except FM mode.
45
AM OUT
O
Pin to output for AM mode. "H": AM(MW) mode. "L" except AM(MW) mode.
46
JACK IN
I
This is a pin where HP plug input is detected. "H": no plug. "L" plug exist.
47
SDATA
O
Pin to output data for remote controller display.
48
SCLK
I
Pin to input serial clock.
49
BUZR
O
Output buzzer.
50
FM MODE
O
Pin to output FM MONO/ST switching.
51
F. REC ON
O
"H": FWD REC mode. "L": Other mode.
52
R.REC ON
O
"H": REV REC mode. "L": Other mode.
53
REC ON
O
"H": REC mode. "L": Other mode.
54
F/R CTL
O
Output pin for tape run direction. "H": FWD direction. "L": REV direction.
55
DSL OUT
O
Pin to output DSL ON/OFF control.
Description
J area
U area
E area
H area
L
L
H
H
L
H
L
H
25
Pin No.
Pin Name
I/O
56
DOLBY OUT
O
DOLBY ON/OFF control output pin.
57
70/120
O
Pin to output normal tape and metal tape switching.
58
CS
O
Pin to control READ,WRITE of EEPROM.
59
SCK EEPROM
O
Pin to output serial clock of EEPROM.
60
SDATA EEPROM
I/O
Pin to input/output data of EEPROM.
61
POWER ON
O
"H": POWER ON. "L": POWER OFF.
62
POW MUTE
O
Pin to output muting. "H": MUTE ON. "L": MUTE OFF.
63
NC
–
Not connected.
64
IF IN
I
Pin to input IF signal.
65
TU OUT
O
Output "H". "H": TU mode. "L": except TU mode.
66
PLL OUT
O
Output phase comparison instrument.
67
P-SNSR
I
Pin to input photo sensor waveform output.
68
BIAS MUTE
O
Pin to output mute when REC. "H": MUTE ON. "L": MUTE OFF.
69
GND
–
GND.
70
FM IN
I
Input FM programmable counter.
71
AM IN
I
Input AM programmable counter.
72
VDD
–
Pin to apply voltage.
73
RESET
I
Pin to input system reset signal.
74
XOUT
O
Crystal oscillation pin.
75
XIN
I
Crystal oscillation pin.
76
VXT
–
Power supply pin for crystal oscillation.
77
VLCD
–
Reference voltage pin for LCD drive.
78
C1
–
Reference voltage pin for LCD drive.
79
C2
–
Reference voltage pin for LCD drive.
80
VEE
–
1.5V constant voltage power supply pin for LCD drive.
26
Description
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