21
WM-FX888
6-8.
IC PIN FUNCTION DESCRIPTION
•
IC3 TC9327AF-615 (SYSTEM CONTROLLER, LIQUID CRYSTAL DISPLAY DRIVER)
Pin No.
Pin Name
I/O
Description
1 to 4
COM1 to COM4
O
Common drive signal output to the liquid crystal display
5 to 22
S1 to S18
O
Segment drive signal output to the liquid crystal display
23
DOLBY
VCC-CTL
O
Power on/off control signal output of the dolby NR amplifier
“L”: power on (tape on), “H”: power off (radio on)
24
S1/2-CTL
O
Capstan/reel motor speed control signal output “L”: normal speed, “H”: 1/2 speed
25, 26
—
O
Not used
27
PRE-CTL
O
Pre-amplifier on/off control signal output “L”: tape play, “H”: radio on
28
MUTE-CTL
O
Power on muting control signal output “L”: muting on
29
F/R-CTL (PLAY)
O
Forward/reverse selection signal output “L”: forward direction, “H”: reverse direction
30
BAND FM/AM
O
Power on/off control signal output of the FM circuit
“L”: power on (FM on), “H”: power off (AM or tape on)
31
R-DATA-OUT
O
Remote control data output to the remote commander
32
F-TUME
I
“H” is input when amplifier on mode
33
R-TUME
I
“H” is input when amplifier on mode
34
R-DATA-IN
I
Communication request signal input from the remote commander
35
HOLD-SENS
I
Hold status detection signal input “L”: hold off
“H” is input when key pressing at hold mode
36
OSC-CTL
O
Motor restart control signal output “L”: BL skip status, “H”: FF/REW motor rotation status
37
AMS-IN
I
AMS (Automatic Music Sensor) detection signal input
“L”: music is present, “H”: music is not present
38
PHOTO-CTL
O
Control signal output to the capstan/reel motor rotation detection circuit
“L”: rotation detection circuit on
39
PHOTO-IN
I
Rotation detection signal input of the capstan/reel motor
40
DDC1-CTL
O
Power on/off control signal output of the DC/DC converter circuit “H”: power on
41
HOLD-SW
I
HOLD switch input terminal “L”: hold on
42
BATT-DET
I
Battery voltage detection signal input (A/D input)
43
KEY-IN
I
Key input terminal (A/D input)
44
F/R-SW
I
Tape direction switch input terminal (A/D input) “L”: forward position
45
A/D-REF (VCC)
I
Reference voltage (+1.6V) input for the A/D converter
Chip select signal output to the EEPROM
Two-way data bus with the EEPROM
Serial clock signal output to the EEPROM
Beep sound signal output
Capstan/reel motor start control signal output “H”: motor on
Capstan/reel motor direction control signal output “L”: clockwise, “H”: counterclockwise
I
Cassette tape detection switch input terminal “L”: cassette detected, “H”: no cassette
Not used
AVLS (Automatic Volume Limiter System) on/off control signal output “H”: AVLS on
55
BST-CTL
O
Bass boost control signal output “H”: on
56
RV-CTL
O
Emphasizing sound control signal output
“L”: normal, “H”: RV (revive)/MB (mega bass)/GRV (groove)
57
MB/GRV-CTL
O
Emphasizing sound control signal output
“L”: normal/RV (revive)/GRV (groove), “H”: MB (mega bass)
58
AMP-CTL
O
Power on/off control signal output to the audio master amplifier “H”: power on
59
DOLBY-CTL
O
Dolby on/off control signal output “L”: dolby NR on
60
PH-CTL
O
Plunger drive signal output “H”: plunger on
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