SAC SA100 - Figure 2-52. Page 2 Autotransfer Logic Schematic

SOUTHERN AVIONICS COMPANY
Model SA100 Dual2-70 Theory of Operation, Radiobeacon
Figure 2-52. Page 2 Autotransfer Logic Schematic
PRI XMTR SELECT LOGIC ON/OFF CTRL
+5V
FAIL ALM RLY - NC
FAIL ALM RLY -NO
BTRY
FAIL ALM RLY - C
GND
PRI XMTR SELECT
AC RTN (T1 SEC)
AC LINE (T1 SEC)
ANT RLY
XMTR1 RLY XMTR2 RLY
LOGIC ON/OFF CTRL
+V
+5V
+5V +5V
+5V
+5V
+V +V +V +V
+V
+5V +5V
+V
+V
+V
+V
U6-2/U7-7
U4-10/U7-6 U6-4/U7-12
U6-6/R14
U4-4/U7-11
FAIL INDICATION CTRL
SEC INDICATION CTRL
PRI INDICATION CTRL
XMTR1 SHTDN SIG XMTR2 SHTDN SIG
U2-12/R25
PRI XMTR SELECT SIG
RESET
* JP1 AND JP2 USED ON SLP09904 ONLY. NOTE: S1 SHOWN SET FOR AN INPUT VOLTAGE OF 115VAC.
POS
1
V
2 2 - 1, 5 - 6
S1 FUNCTION
2 - 3, 5 - 4
CONNECTION
IN
230 115
43
5
6
2
1
S1 9S900025 S1 9S900025
R38 47K R38 47K
8
5
16
1
10
K1
9R190065
K1
9R190065
Q2 1T344000 Q2 1T344000
CR4
1D400400
CR4
1D400400
Q10 1T371100 Q10 1T371100
CR11
1D400400
CR11
1D400400
R28 1.5K 1W R28 1.5K 1W
R10 2.2K R10 2.2K
JP2JP2
R15 10K R15 10K
CR13
1D523300
CR13
1D523300
8 7 6 5
4 3 2 1
T1
1X000017
T1
1X000017
Q11 1T371100 Q11 1T371100
R29 10K R29 10K
C14 0.1 C14 0.1
R31 1K R31 1K
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
P1
GOLD FINGERS (22X)
P1
GOLD FINGERS (22X)
CR14
1D400400
CR14
1D400400
R30 33K R30 33K
R41 47K R41 47K
Q9 1T541500 Q9 1T541500
R8 10K R8 10K
R11 10K R11 10K
CR9
1D400400
CR9
1D400400
CR5
1D400400
CR5
1D400400
Q7 1T344000 Q7 1T344000
R35 10K R35 10K
R32 4.7K R32 4.7K
R33 22K R33 22K
Q3 1T344000 Q3 1T344000
R12 2.2K R12 2.2K
14 15
U6FU6F
C10 1.0 C10 1.0
11 12
U6EU6E
CR12
1D400400
CR12
1D400400
R40 470K R40 470K
R7 10K R7 10K
12 13
11
U5D
1U400100
U5D
1U400100
CR7
1D400400
CR7
1D400400
CR8
1D400400
CR8
1D400400
S0
4
R0
3
S1
6
R1
7
S2
12
R2
11
S3
14
R3
15
EN
5
Q0
2
Q1
9
Q2
10
Q3
1
VDD
16
VSS
8
U7
1U404300
U7
1U404300
R36 47K R36 47K
R25 3.9K R25 3.9K
R34 10K R34 10K
Q1 1T344000 Q1 1T344000
R39 10K R39 10K
R13 10K R13 10K
JP1JP1
+
C6 6.8
+
C6 6.8
Q8 1T344000 Q8 1T344000
CR6
1D400400
CR6
1D400400
R37 10K R37 10K
9 10
U6D
1U404900
U6D
1U404900
R14 2.2K R14 2.2K
CR10
1D400400
CR10
1D400400
R26 10K R26 10K