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SRM9020
Simoco SRM9020 Service Manual
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DRAFT D
TNM-M-E-0001
Page
76
APPENDIX F -
SRM9030 MICROPHONE
F.1 Replaceable Parts
Item
Part Number
Curly Cord
3502-310-63410
Function Switch
3502-445-00020
PTT Switch
3502-445-00010
Mic Element
3502-310-63420
R1
PCB Assembly
9k_49
Yellow
Blue
Red
White
Black
Function Key
S2
33nF
Mic
6K8
S1
Hookswitch
S3
PTT
9
8
7
3
2
4
PTT
Cradle
Function Key
Mic Ground
DF11 SKT
Mic Audio
Gnd
SRM9030 Microphone
3513-500-0926
Figure F.1 SRM9030 Microphone Schematic
79
Table of Contents
Default Chapter
2
Revision History
2
Table of Contents
3
1 Introduction
5
General
5
Scope
5
Description
5
Product Variants and Facilities
6
Table 1-1 Common Features for All Variants
6
Table 1-2 Conventional-PMR Variants
7
Table 1-3 Trunked Variants
8
Glossary
9
2 Service Philosophy
10
Service Concept
10
Warranty
10
Service Within and out of Warranty
10
Ancillary Items
10
Software Policy
10
Adjustment and Alignment
11
Technical Specification
12
General
12
Transmitter
13
Receiver
14
Signalling
15
Environmental
16
3 Technical Description
17
Receiver
17
Front End Filters and RF Amplifier
17
First Mixer and if Section
17
Figure 3-1 VHF/UHF Receiver Block Diagram
18
Quadrature Demodulator
19
Receiver Audio Processing
19
Transmitter
19
Drivers and PA Stages
19
Figure 3-2 VHF/UHF Transmitter Block Diagram
20
Power Control
21
Antenna Changeover and Harmonic Filter
21
Transmitter Audio Processing
21
Figure 3-3 VHF/UHF Synthesiser, Block Diagram
22
Frequency Synthesiser
23
General
23
Pll
23
Vco
23
Negative Bias Generator and Loop Filter
23
Phase Modulator
23
Reference Oscillator
24
Control
24
DSP and FPGA
24
Figure 3-4 VHF/UHF Control Block Diagram
25
DSP Clock Oscillator
26
Memory
26
Multiplexer
26
Power Supplies
26
Power on Function
26
Power Supplies
27
4 Alignment
29
Test Equipment
29
Figure 4-1 SRM9000 Programming & Alignment Breakout Box
30
Figure 4-2 SRM9000 Speaker Output Breakout Box
30
Test Set up
31
Figure 4-3 Test Set up
31
COMMS Set up
32
Radio Preparation
33
Alignment Procedure
34
5 Replaceable Parts
43
Figure 5-1 Replaceable Parts
43
Figure 5-2 Band-Specific Parts
44
6 Circuit Diagrams and Parts List
45
List of Illustrations
45
Figure 6-3 Power Supply Schematic
45
Figure 6-4E0 Receiver Circuit Schematic
45
Figure 6-6E0 Synthesiser - VCO Schematic
45
Figure 6-7E0 Synthesiser - PLL Schematic
45
Figure 6-11 SRM9000 PCB Layout, Top (1/2)
45
Figure 6-13 SRM9000 PCB Layout, Bottom (1/2)
45
Figure 6-1 SRM9000 Block Diagram
46
Figure 6-2 DSP and FGPA Schematic
47
Figure 6-8 A/D Converter Schematic
65
Figure 6-9 D/A Multiplexer Schematic
66
Figure 6-10 I/O Connections Schematic
67
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Simoco SRM9020 Specifications
General
Brand
Simoco
Model
SRM9020
Category
Transceiver
Language
English
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