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B
A
3-4. CPU PCB Unit
6
5
4
3
2
I
U.S.A./CANADA
I
eN6
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!
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•
I
4fJTELEeo IN
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1
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MUTE 12
N.C.
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OFFHOOK
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(T)
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N
A2
III
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A3
Ul
..
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AS
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RO
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,
. _ _ _
~
2.45.
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C64
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100",
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/16V
6
5
Analog God end Digital Gnd
connected 01 only one point
Ie55
-
T
0.1.
Jp.
r,pe~ ~MVCC
IDK
MYEE
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1
6
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r--------+-~22~CLK2
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20
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...
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17 NFO
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TXOUT
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NSEL
~
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3
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TX1N
LA.
24 RXOUT
8
~
NOT USED
less
470p
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vcc~
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I
33000PF
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10"
X3
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o
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RS2
3.3M
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VEE
R53
"'.7M
HVEE
L OWBATT
r~71pF
C7D
T
20 pF
"VEE
"VEE
C73
100 ....
/25V
4
3
2
D
c
B
A
3-41
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