SOUTHERN AVIONICS COMPANY
Model SA100 Dual2-30 Theory of Operation, Radiobeacon
Figure 2-18. Power Amplifier Schematic
CARR IN
LV
LV
VMOD
RF OUT
RFV
ISAM
VSAM
RFV
CARR IN
TSAM
+5V +12V
+12V
+12V +5V
+12V
+12V
+12V
NOTES
1. THIS DRAWING NO. SEP29600 REV. M.
2. TITLE: SPA PCB SCHEMATIC.
3. ASSEMBLY DWG. NO. SAP29600.
4. ALL RESISTORS 1/4W, 1%, UNLESS NOTED.
5. ALL CAPACITORS IN uF, UNLESS NOTED.
6. R15, R16, AND RT1 USED ON SLP29610 ONLY.
7. R9: 10K OHMS - SLP29600
39K OHMS - SLP29610
SEE NOTE 7.
C4
0.47
400V
C4
0.47
400V
CR2
1D474400
CR2
1D474400
R4
4.7
1/2 W
R4
4.7
1/2 W
TP2
+12V
TP2
+12V
A B
A' B'
T1
SLE12970
16:16
T1
SLE12970
16:16
C6
1.0
C6
1.0
CR4
1D474400
CR4
1D474400
R12
10K
R12
10K
Q3
1T372500
Q3
1T372500
Q1
1T372500
Q1
1T372500
TP0
GND
TP0
GND
TP4TP4
C5
1.0
400V
C5
1.0
400V
3 4
U2BU2B
1 2
147
U2A
1U740600
U2A
1U740600
Q4
1T403200
Q4
1T403200
C9
0.01
C9
0.01
+12V
1
+5V
3
VSS
2
U1
1U780500
U1
1U780500
R6
4.7
1/2 W
R6
4.7
1/2 W
R8
100K
1/2 W
R8
100K
1/2 W
R10
0.02
3 W
R10
0.02
3 W
R11
10K
R11
10K
R2
470
1/2 W
R2
470
1/2 W
C7
0.001
C7
0.001
F1
3A
F1
3A
Q5
1T250001
Q5
1T250001
+
C1
33
+
C1
33
t
RT1
1K
t
RT1
1K
A B
A' B'
T3
SLE45650
8:22
T3
SLE45650
8:22
R7
680
1/2 W
R7
680
1/2 W
TP1
+5V
TP1
+5V
CR5
1D440000
CR5
1D440000
R5
680
1/2 W
R5
680
1/2 W
5 6
U2CU2C
CR1
1D474400
CR1
1D474400
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)
TP3TP3
A B
A' B'
T2
SLE12970
16:16
T2
SLE12970
16:16
CR9
1D400400
CR9
1D400400
R9
10K
R9
10K
C8
0.001
C8
0.001
CR3
1D474400
CR3
1D474400
C2
1.0
C2
1.0
Q6
1T250001
Q6
1T250001
Q2
1T403200
Q2
1T403200
R3
470
1/2 W
R3
470
1/2 W
CR6
1D440000
CR6
1D440000
9 8
U2DU2D
R14
33
R14
33
R16
1K
R16
1K
R15
1.5K
R15
1.5K
+
C3
33
+
C3
33
R13
100K
R13
100K
To Next Page
Loading...