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D.' V "ELA Y CLOSED
13.' V "ELA Y OPEN
E
S~ A'
C9Sr-IC9l
2SDPr
~ ~
2S'
1
- --:1
E
,
1<3, ' ti
~ -1- ~ ~ - TP.
>,
~
tP6
I
TALI"
.P13
vCC.,
TO L.2
P>S"
'110 C SHU"T
R62
18'
TO BASE
1
11
or 017 \l
C'2
I.DS
5 . . .9 oI_'--.llill..O<DT
USEO
RU
"'W'<-
33'
nI
c3
;n
S;9.S<SKH2=
-j
ISP,
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12opr
I"TFT
rAST/SLO~
VCC27.29.3'
TO 'SV
'SV
lC3'
12'p,-
'AU"
WHEN 5 V IS APPUEO TO TP13, "ELAY SWIT.
CHING RA TE IS REDUCED FROM 200 HZ TO 2 HZ
FOR SERVICING.
R2S
.. lK
R.3
lK
U9
...
lK
P IS i32
ELEMENTS
IN/OUT
1.5:!
VS~
12
11
'SV
13
p,,131
AlB
2: I
V~
"
RSI
<7K
TPII
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lcs<
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1.05
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10
1.,.5.9
~
UlE
<5, AND
DE.
-"VICING,
J
0 V WHEN
RADIO
SELECTS
AN A CHANNEL
5 V WHEN RADIO SELECTS
A B CHANNEL
i
(SEE SHEET 21
2
(SEE SHEET 21
A LOGIC
HIGH AT U8-36 TURNS
ON usa.
WHICH
IN TURN.
TURNS
OFF USE AND 016
WHEN
USE
IS OFF. 017 IS ON TO ENABLE
018-022.
018-022
DRIVE
RELAYS
FOR
OUTPUT
CAPACITANCE.
A
LOGIC
LOW
AT U8-36 TURNS
OFF
U5D. WHICH
IN TURN.
TURNS
ON 016.
0161S
ON TO ENABLE
011.015.
011.015
DRIVE
RELAYS
FOR
INPUT
CAPACITANCE.
R21
'Wv-
22K
.-
TPI3
,AST I SLO~
TP9
t.S:J
TP10
2: 1
EEPS-3D253-A
(SHT ,OFZ)
,.
/
:\
'J
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