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RT 2048
Sailor RT 2048 Manuals
Manuals and User Guides for Sailor RT 2048. We have
1
Sailor RT 2048 manual available for free PDF download: Instruction Book
Sailor RT 2048 Instruction Book (95 pages)
VHF Radiotelephone
Brand:
Sailor
| Category:
Cordless Telephone
| Size: 7.22 MB
Table of Contents
Contents
2
Introduction
5
General Description
6
Technical Data
7
Controls
9
Read out
10
Principle of Operation
11
Frequency Generation
11
Receiver
11
Transmitter
11
Microcomputer
12
Block Diagram
13
Installation
19
Mounting Possibilities
20
Handset
24
Microtelephone Connector
24
Power Supply
24
Power Connector + Ext. Loudspeaker
26
View from Mounting Side
26
Antennas
26
Special Options
26
Rear View
29
Standard Frequency Table
30
Service
32
Maintenance
32
Proposal for Necessary Measuring Instruments
32
Preventive Maintenance
32
Test Probe
33
Adjustment Procedure
34
Adjustment of Synthesizer Unit
34
Alignment of Modulation Circuitry
34
Adjustment of RX/TX Unit
35
Alignment of Internal Power Supply
35
Alignment of RF and if Amplifier
35
Alignment of Detector and AF Output Level
35
Control of Receiver Sensitivity
36
Alignment of Transmitter Output Level
36
Troubleshooting
37
Replacement of Components
37
Replacement of Modules
37
Replacement of RX/TV Unit
38
Replacement of Synthesizer Unit
38
Pin Configurations
39
Transistors
39
Integrated Circuit
39
Module Location
46
Mechanical Disassembling
47
Circuit Description
49
Keyboard Unit
49
Interface Unit
50
+5 Power Supply
50
Battery Sense/Reset Circuit
50
Indicator Supply
50
Serial Interface
51
Squelch
51
AF Filter/Amplifier
51
Schematic Diagram Interface Unit Module
53
Synthesizer Unit
57
VCO with Buffer
57
Loop Buffer Amplifier
57
32/33 Prescaler
57
Charge Pump
58
Loop Amplifier/Filter
58
RX Buffer Amplifier
58
TX Buffer Amplifier
59
X-Tal Oscillator
59
Reference Divider
59
RX Filter Control Amplifier
59
AF Post Filter
60
RX/TX Unit
65
Receiver Front End
65
First Mixer
65
Crystal Filter
65
AF Power Amplifier
66
RF Power Amplifier
66
Harmonic Filter
66
RF Power Control
66
8V Power Supply
67
Interconnection Cable Diagram
76
Microtelephone Installation
80
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