SOUTHERN AVIONICS COMPANY
Model SA100 Dual
2-74
Theory of Operation, Radiobeacon
Figure 2-55. DC Auto Disconnect
+24V
+24V
+24V
+24V
+24V
N
O
TES
1
. T
H
IS
D
R
A
W
ING
NO.
SEP05008
REV.
A.
2
.
TI
TLE:
DC
AUTO
DI
SCONNECT
SCHEMATI
C.
3.
ASSEMBLY
DW
G.
NO.
SAP05008.
4
. ALL
RESI
STORS
1/
4W
, UNLESS
NOTED.
5.
ALL CAPAC
IT
O
R
S
IN
u
F,
U
N
LESS NOTED.
6
. T
O
IN
V
E
RT U1'
S OUTPUT,
CUT TRACE BETW
EEN C & D AND J
U
MPER A-
C AND B-
D.
7.
TO USE K2'
S CONTACTS FOR ANOTHER APPLI
CATI
ON,
CUT TRAC
E
S
B
E
TW
E
E
N
E & F AND H & I
, AND SOLDER W
IRES TO F,
G,
AND H AS REQU
IR
E
D
.
8.
FOR I
N
PUT LI
NE VOLTAGE J
U
MPER SETTI
NG,
S
E
E
T
A
B
LE
.
AC AC
R
TN
N.
O
. 2
N.
O
. 1
N
.C. 1
N
.C. 2
CO
M
1
CO
M
2
JP1B
LI
N
E
V
O
LT
A
G
E JUM
PER
SETTI
NGS
11
5VAC
23
0VAC
JP1
A
AC
S
EN
SE
C
B
+
-
U1
A
1U
324000
3
2
1
4
11
TB
2
1 2
+
C2 33
+
K1 9R
190062
6
4
8 11
13
9
1
16
G
+
-
U1D
12
13
14
F
CR3
1D
474300
R2 10K 1%
I
K2 9R
190063
3
4
5
1
2
A
E
R7 10K
A
B
JP
1
TB
1
1 2 3 4 5 6 7 8
R3 220 5W
R1 4.
75K
1%
C1 0.
1
CR1
1D
400400
R8 36K 1W
R6 3.
9K 1%
R9 36K 1W
+
-
U1C
10
9
8
Q1 1T222200
R4 22K 1%
D
CR2
1D
523900
+
-
U1
B
5
6
7
CR4
1D
400400
H
R5 82.
5K
1%
Summary of Contents for SA100
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