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Pin No.
Terminal
Description
52
Sa
53
Sb
54
Se
55
Sd
These are the output terminal for segment signal.
56
Se
"H" when active.
57
Sf
58
Se
39
Sh
60
Si
61
Si
62
Sk
63
SI
64
VDD
This is the divice power Source terminal.At the time of operation,the supply is 5V.The internal
data memory(RAM)
is maintained
by means
of the super capacitor.
FM5OK (FM band setting)
FM50K
Region
Frequency range
Channel space
Reference frequency
IF frequency
1
Europer
87.50 ~108.00MHz | 50kHz
25kHz
10.7MHz
0
USA.
87.9
~107.9MHz
200kHz
25kHz
10.7MHz
AMS
AM9K
Region
Frequency range
Channel space
Reference frequency
IF frequency
1
Europer
522 ~ 1611 kHz | 9kHz
9kHz
450kHz
0
USA.
530
~ 1620 kHz
10kHz
10kHz
450kHz
Connection of fluorescent tube and microprocessor
ANODE CONNECTION
8G(D8)
7G(D7)
6G(D6) | 5G~D5)
| 4G(p4) | 3G(D3) | 2G(pD2) | 16(D1)
a
SLEEP
==
a
a
a
a
a
a
b
cb DIRECT
b
bd
b
b
b
b
¢
MEMORY
c
©
¢
c
©
¢
d
11-20
d
a
4
4
ad
4
e
110
FM | FM MUTE
e
e
e
e
e
e
¢ | [aupio mure
STEREO
f
f
t
f
f
f
8
=
AM
&
g
g
8
g
&
h | [remonrror
OFF
=
=
=.
h
=
h
i
-
ON
i
=
i
=
-
i
j
-
MIN
j
2
=
=
FS
j
k
-
kHz
-
-
k
k
-
ke
é
-
MHZ,
-
=
DP
-
=
cH
m
PRESET STATION
-
-
-
-
-
-
=
nS
Eger
2
iz
=
5
&
5
=
°
-
SIONALSTRENGTH.
-
-
-
-
-
-
P
-
=
x
=
es
=
=
uPA81C (BUFFER)
6
15
14
13
12
n
10
g
q
ee
RBI
~
RBZ
oe
ars
ae
-
7
2
3
5
6
7
RBI:
20K
RI:
20KA
RBZ!
2A
AZ : 100K
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