Sony HCD-D170 - IC Pin Function

5-2. IC PIN FUNCTION (IC501)
¢ 1C501 GRAPHIC CONTROL (ASD042)
Ec A
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REO. ON
cLKMG ST (Se
DATAGH let
paTAMG | Seis
= Dae a
PANEL 5 a oe
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KEY INI-4 | 1 | Key matrix input. |
AVpD | | ;
AVREF —} ae ,
Vss GND 2
12
13
14
15
16
17
20
21-24
25-28
29
30
31
Q
<
B
Ww NS
W
Ww
} X’tal (S MHz).
ely
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Reale
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0 | LEDGrivesignal output,
LO NO acer ee
0 | ted aves —SSSCSCS~—~—CSCSCSC“C~‘“~s~*S
44. | VOLINA ae ae Volume encoder signal input.
46__| RDYMG 1 [ROY signaltommaserenot ——SSCCSCSCSCSC~C~S~S~*S
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Ww
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x
—
w Hr
Pad
N
LEDS5-8
LED3, 4
LED1, 2
36-39
40, 41
42, 43
47 SIRCS IN SIRCS signal input. ;
aoe
49, 50 LEDS12, 13
31 LEDS11
VpD
Not used. (Pull up)
LED drive signal output.
iw nN
53~70
71
' 72-75
76-80
SEG5S-22
V.LOAD »
SEG1-4
GR8-12 ;
FL segment signal output. .
~25V for FL |
FL segment signal output. :
FL grid signal output. ,
e Abbreviation
FL : FLUORESCENT INDICATOR TUBE