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WM-FX522
6-7. IC PIN FUNCTION DESCRIPTION
• IC701 TC9328AF-108 (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 21 SEG1 to SEG17 O
Segment drive signal output to the liquid crystal display
22
TEST DATA OUT
O Remote control data output to the remote commander
23 SPEED CTL O Capstan/reel motor speed control signal output “L”: 1/2 speed, “H”: normal speed
24 PHOTO IN I Rotation detection signal input of the capstan/reel motor
25, 26 KO1, KO2 O Key output to the key matrix
27 to 30 K1 to K4 I Key input from the key matrix
31 VDD — Power supply terminal (+1.5V)
32 MOTOR CTL O Capstan/reel motor start control signal output “H”: motor on
33 MOTOR DIR O Capstan/reel motor direction control signal output “L”: counterclockwise, “H”: clockwise
34 PHOTO CTL O
Control signal output to the capstan/reel motor rotation detection circuit
“H”: rotation detection circuit on
35 PM CTL O Plunger drive signal output “H”: plunger on
36 BEEP O Beep sound signal output “H”: beep sound on
37 AVLS CTL O AVLS (Automatic Volume Limiter System) on/off control signal output “L”: AVLS on
38 BST CTL O Bass boost control signal output “H”: mega bass on
39 MUTE CTL O Power on muting control signal output “L”: muting on
40 F/R CTL O Forward/reverse selection signal output “L”: forward direction, “H”: reverse direction
41 NC I Not used
42 EEP WRITE IN I Input terminal for the EEPROM write mode “L”: EEPROM write mode
43 HOLD SW I HOLD switch input terminal “L”: hold on
44 AMS IN I
AMS (Automatic Music Sensor) detection signal input
“L”: music is present, “H”: music is not present
45 IF IN I Intermediate frequency detection signal input
46 TAPE IN I Cassette tape detection switch input terminal “L”: cassette detected, “H”: no cassette
47 GND — Ground terminal
48 NC I Not used
49 VCO IN I
FM/AM VCO input
50 VDD — Power supply terminal (+1.5V)
51 AMP CTL O Power on/off control signal output to the audio master amplifier “H”: power on
52 DO O
PLL phase comparator output
53 VREG — PLL constant voltage power supply
54 BAND1 O Band selection signal output “L”: AM, “H”: FM
55 BAND2 O Band selection signal output “L”: FM, “H”: AM
56 PRE CTL O Pre-amplifier on/off control signal output “L”: tape play, “H”: radio on
57 LOCAL/DX O FM stereo/mono selection signal output “L”: mono, “H”: stereo
58 BATT DET I Battery voltage detection signal input (reference voltage input) (A/D input)
59 F/R SW I Tape direction switch input terminal (A/D input) “L”: forward position
60 REMOTE I Remote control data input from the remote commander (A/D input)
61 OSC IN I Motor restart control signal input (A/D input)
62 CS (EEP) O
Chip select signal output to the EEPROM
63 DATA (EEP) I/O
Two-way data bus with the EEPROM
64 SCLK (EEP) O
Serial clock signal output to the EEPROM
65 IF REQ O Intermediate frequency request signal output “L”: request
67 DDC CTL O Power on/off control signal output of the DC/DC converter “H”: power on
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