Read Sony ICF-C253 Service Manual online
— 11 —
4-3.
IC PIN FUNCTION DESCRIPTION
• IC100 LCD CONTROL (
µ
PD17072GB-019-1A7)
Pin No.
1
2
3
4
5
6 to 9
10 to 13
14
15 to 17
18
19
20
21
22
23
24
25
26
27
28, 29
30
31 to 34
35 to 47
48, 49
50
51
52
53
54 to 56
I/O
O
O
O
O
O
O
I
I
Ι
−
O
I
I
−
−
−
O
I
−
−
−
−
−
−
−
O
O
O
I
I
O
O
I
Description
Initialization output.
Mute output.
Band output.
ALARM A indicator.
ALARM B indicator.
Key strove signal.
Key return signal.
ALARM-TIME input.
DIAL signal.
Ground.
PLL error output.
LW/MW VCO input.
FM VCO input.
Regulator.
VDD
System clock output.
System clock input.
Regulator.
LCD bubbler.
LCD drive. Common signal.
LCD drive. Segment signal.
Not used.
Power failure detection.
Not used.
Buzzer output.
Band output.
Initialization input.
Pin Name
INT OUT
MUTE
BAND1
ALARM A
ALARM B
KS0 to KS3
XR0 to XR3
P0
P1 to P3
GND
E0
VCOL
VCOH
Vreg0
VDD
Xout
Xin
Vreg1
VLCD0
CAP0, CAP1
VLCD1
COM0 to COM3
LCD0 to LCD12
LCD13, LCD14
CE
INT
BEEP
BAND2
INIT IN
MEMO
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