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3 7 63 1515 0
6-15. IC PIN FUNCTIONS
• IC501 GRAPHIC CONTROL (ASD042FGF-022-3B9)
Pin No.
Pin Name
GR1 – GR7
1 – 7
8
V
DD
9, 10
LED9, LED10
KEY SELECT
11
12
VOL IN B
13
REQ. GM
CLK MG
14
15
DATA GM
DATA MG
16
RESET
17
18
PANEL SW
LED SELECT
19
20
AVss
21 – 24
SPEANA IN1 – 4
KEY IN1 – 4
25 – 28
29
AV
DD
30
AV
REF
JOG IN B
31
32
XT2
33
Vss
X1
34
35
X2
TE
L 13942296513
LED7, LED8
36, 37
LED5, LED6
38, 39
40 – 43
LED1 – LED4
VOL IN A
44
45
JOG IN A
46
RDY MG
SIRCS IN
47
48
IC (VPP)
49 – 51
LED11 – LED13
V
52
DD
SEG5 – SEG22
53 – 70
71
V. LOAD
SEG1 – SEG4
72 – 75
76 – 80
GR8 – GR12
• Abbreviation
FL: FLUORESCENT INDICATOR TUBE
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I/O
O
FL grid signal output
—
+5V
O
LED drive signal output
O
Not used
I
Volume encoder signal input
I/O
Reguest signal from/to master control
I
Serial clock input
O
Serial data output
I
Serial data input
I
Reset signal input
I
CD door open detection input (Not used)
O
LED select signal output
—
Ground
I
Spectram analizer signal input (Connected to ground)
I
Key matrix input
—
+5V
—
I
Not used (Pull down)
I
Not used
—
Ground
I
X'tal (5 MHz)
O
O
LED drive signal output
O
Not used
O
LED drive signal output
I
Volume encoder signal input
I
Not used. (Pull down)
I
RDY signal from master control
I
SIRCS signal input
—
Ground
O
LED drive signal output
—
+5V
O
FL segment signal output
—
–25V for FL
O
FL segment signal output
O
FL grid signal output
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2 9
8
Function
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3
6 7
1 3
1 5
co
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— 55 —
9 4
2 8
0 5
8
2 9
9 4
2 8
m
9 9
9 9
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