Ic Pin Function Description - Sony WM-FX522 Service Manual

6-7. IC PIN FUNCTION DESCRIPTION

• IC701 TC9328AF-108 (SYSTEM CONTROLLER, LIQUID CRYSTAL DISPLAY DRIVER)
Pin No. Pin Name
1 to 4 COM1 to COM4
5 to 21 SEG1 to SEG17
22
TEST DATA OUT
23 SPEED CTL
24 PHOTO IN
25, 26 KO1, KO2
27 to 30 K1 to K4
31 VDD
32 MOTOR CTL
33 MOTOR DIR
34 PHOTO CTL
35 PM CTL
36 BEEP
37 AVLS CTL
38 BST CTL
39 MUTE CTL
40 F/R CTL
41 NC
42 EEP WRITE IN
43 HOLD SW
44 AMS IN
45 IF IN
46 TAPE IN
47 GND
48 NC
49 VCO IN
50 VDD
51 AMP CTL
52 DO
53 VREG
54 BAND1
55 BAND2
56 PRE CTL
57 LOCAL/DX
58 BATT DET
59 F/R SW
60 REMOTE
61 OSC IN
62 CS (EEP)
63 DATA (EEP)
64 SCLK (EEP)
65 IF REQ
67 DDC CTL
I/O
O
Common drive signal output to the liquid crystal display
O
Segment drive signal output to the liquid crystal display
O Remote control data output to the remote commander
O Capstan/reel motor speed control signal output "L": 1/2 speed, "H": normal speed
I Rotation detection signal input of the capstan/reel motor
O Key output to the key matrix
I Key input from the key matrix
— Power supply terminal (+1.5V)
O Capstan/reel motor start control signal output "H": motor on
O Capstan/reel motor direction control signal output "L": counterclockwise, "H": clockwise
Control signal output to the capstan/reel motor rotation detection circuit
O
"H": rotation detection circuit on
O Plunger drive signal output "H": plunger on
O Beep sound signal output
O AVLS (Automatic Volume Limiter System) on/off control signal output "L": AVLS on
O Bass boost control signal output
O Power on muting control signal output "L": muting on
O Forward/reverse selection signal output "L": forward direction, "H": reverse direction
I Not used
I Input terminal for the EEPROM write mode "L": EEPROM write mode
I HOLD switch input terminal "L": hold on
AMS (Automatic Music Sensor) detection signal input
I
"L": music is present, "H": music is not present
I Intermediate frequency detection signal input
I Cassette tape detection switch input terminal "L": cassette detected, "H": no cassette
— Ground terminal
I Not used
I FM/AM VCO input
— Power supply terminal (+1.5V)
O Power on/off control signal output to the audio master amplifier "H": power on
O
PLL phase comparator output
— PLL constant voltage power supply
O Band selection signal output "L": AM, "H": FM
O Band selection signal output "L": FM, "H": AM
O Pre-amplifier on/off control signal output "L": tape play, "H": radio on
O FM stereo/mono selection signal output "L": mono, "H": stereo
I Battery voltage detection signal input (reference voltage input) (A/D input)
I Tape direction switch input terminal (A/D input) "L": forward position
I Remote control data input from the remote commander (A/D input)
I Motor restart control signal input (A/D input)
O Chip select signal output to the EEPROM
I/O
Two-way data bus with the EEPROM
O Serial clock signal output to the EEPROM
O Intermediate frequency request signal output "L": request
O Power on/off control signal output of the DC/DC converter
Description
"H": beep sound on
"H": mega bass on
WM-FX522
"H": power on
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