SOUTHERN AVIONICS COMPANY
Model SA100 Dual
2-41
Theory of Operation, Radiobeacon
Figure 2-27. Page 1 Monitor Schematic
FWD
+12V
GND
RST
MON
RFL
+12V
+12V
+12V
+12V
+12V
+12V
+12V
+12V
+12V
+12V
+12V
+12V
+12V
CR1-A/U1-5
U5-1/U4-4
U5-13/U4-3
Q1-K/U4-6
XDSI
MSD
SSV
SSN
SSC
SSP
SDO2
SDO
NOTES 1. THIS DRAWING NO. SEP31210 REV. M. 2. TITLE: MONITOR CONTROL SA25-200 PWB SCHEMATIC. 3. ASSEMBLY DWG. NO. SAP31210. 4. ALL RESISTORS 1/4W, UNLESS NOTED. 5. ALL CAPACITORS IN uF, UNLESS NOTED. 6. R4 IS TO BE SHORTED WITH A JUMPER WIRE ON SLP31210. 7. DS3, JP5, Q4, R32, R41, R56, R57, R59 NOT USED ON SLP31210.
TP10 RESET
TP10 RESET
C20 0.01
C20 0.01
C9 0.1
C9 0.1
+
C6 33
+
C6 33
3
2
1
4
11
+
-
U6A
1U324000
+
-
U6A
1U324000
5
4
2
+
-
U5B
+
-
U5B
TP4 GND
TP4 GND
R27 120K
R27 120K
12
13
14
+
-
U6D
+
-
U6D
R20 100K
R20 100K
10
9
8
+
-
U6C
+
-
U6C
R42 15K
R42 15K
C10 1.0
C10 1.0
+
C16 33
+
C16 33
G
K
A
Q1 1T602700
Q1 1T602700
11
10
13
+
-
U5D
+
-
U5D
9
8
14
+
-
U5C
+
-
U5C
CR3
1D414800
CR3
1D414800
C7 .001
C7 .001
C5 .001
C5 .001
TP7
FAULT TEST
TP7
FAULT TEST
+
C14 100
+
C14 100
R47 470K
R47 470K
CR1
1D414800
CR1
1D414800
TP2 +12V
TP2 +12V
5
6
7
+
-
U6B
+
-
U6B
+
C17 6.8
+
C17 6.8
R19 50K
R19 50K
Q5
1T700000
Q5
1T700000
R2 820
R2 820
+
C12 6.8
+
C12 6.8
+
C3 33
+
C3 33
R45 47K
R45 47K
3
2
1
JP3 MON
JP3 MON
C19 0.1
C19 0.1
CR2
1D414800
CR2
1D414800
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)
R36 500K
R36 500K
TP6
SETUP
TP6
SETUP
R7 10K
R7 10K
R4 10K
R4 10K
CR4
1D414800
CR4
1D414800
CR6
1D414800
CR6
1D414800
Q2 1T222200
Q2 1T222200
C11 0.1
C11 0.1
C18 1.0
C18 1.0
R22 270
R22 270
R50 10K
R50 10K
R43 220K
R43 220K
R55 1.8K
R55 1.8K
R34 470K
R34 470K
R29 10K
R29 10K
R14 100K
R14 100K
R52 47K
R52 47K
R49 10M
R49 10M
R46 12K
R46 12K
R39 10K
R39 10K
R24 27K
R24 27K
R25 1K
R25 1K
R33 100
R33 100
R51 10K
R51 10K
R44 33K
R44 33K
R37 10K
R37 10K
R30 10K
R30 10K
R18 2.7K
R18 2.7K
R26 820
R26 820
R38 10K
R38 10K
7
6
1
3
12
+
-
U5A
1U339000
+
-
U5A
1U339000
Summary of Contents for SA100
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