Diagrams; 5-1. Ic Pin Function Description - Sony WM-FX267 Service Manual

5-1. IC PIN FUNCTION DESCRIPTION

• MAIN BOARD IC401 µPD17015GS-545-GJG-E1 (SYSTEM CONTROLLER, LCD DRIVER)
Pin No. Pin Name
1 KEYIN3
2 KEYOUT1
3 KEYOUT2
4 KEYOUT3
5 MUTE
6 BEEP/INIT
7 SD
8 TAPEON
9 RADIOON
10 BAND
11 CE
12 XOUT
13 XIN
14 VDD
15 GND
16 EO
17 VREG
18 VCOFM
19 VCOAM
20 LCD8
21 LCD7
22 LCD6
23 LCD5
24 LCD4
25 LCD3
26 LCD2
27 LCD1
28 LCD0
29 COM3
30 COM2
31 COM1
32 COM0
33 VLCD1
34 CAP1
35 CAP0
36 VLCD0
37 KEYIN1
38 KEYIN2
SECTION 5

DIAGRAMS

I/O
I
Key return signal input terminal
O
O
Key strobe signal output terminal
O
O
Muting on/off control signal output to the LA4582CM (IC301) "L": muting on
O Buzzer sound drive signal output terminal
I
Station detector detect signal input from the TA2111F (IC1) SD is present at input of "L"
I
Tape system power on/off monitor input terminal "H": tape on
O
Radio system power supply on/off control signal output "H": radio on
O
Band select signal output to the TA2111F (IC1) "H": FM, "L": AM (MW)
I Power failure detection signal input terminal (fixed at "H")
O
System clock output terminal (75 kHz)
I
System clock input terminal (75 kHz)
—
Power supply terminal (+3V)
—
Ground terminal
O
PLL error signal output terminal
— Power supply terminal (connected to the coupling capacitor)
I
FM VCO input terminal
I
AM (MW) VCO input terminal
O
O
O
O
O
Segment drive signal output to the liquid crystal display (LCD401)
O
O
O
O
O
O
Common drive signal output to the liquid crystal display (LCD401)
O
O
—
—
Terminal for doubler circuit capacitor connection to develop liquid crystal display drive
voltage
—
—
I
Key return signal input terminal
I
Key return signal input terminal
Function
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