Service manual
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LED displays
G90FB-2
41
42
43
44
45
46
47
48
49
50
IC801
LM1246DKA
1
2
3
4
23
24
5
6
7
8
9
10
15
16
17
18
19
20
21
22
11
12
14
13
V FLY
CAPA
VDD1
GND1
CLAMP
H FLY
R
G
B
GNDPLL
VCO
VCC
2OUT
1OUT
GND
VDD
B
G
R
ABL
SDA
SCL
3OUT
CAP D
V
i
e
w
So
n
i
c
C
orp
o
r
a
t
ion
Con
f
id
e
n
t
i
al -
Do Not
Copy
G
9
0
f
B
-
4
43
1
...
...
44
45
46
47
48
...
...
55