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LBI-4622B
Ericsson GE LBI-4622B Manuals
Manuals and User Guides for Ericsson GE LBI-4622B. We have
1
Ericsson GE LBI-4622B manual available for free PDF download: Maintenance Manual
Ericsson GE LBI-4622B Maintenance Manual (24 pages)
406-420 & 512 MHz, 40-WATT TRANSMITTER
Brand:
Ericsson GE
| Category:
Transmitter
| Size: 2 MB
Table of Contents
Table of Contents
2
Description
3
Circuit Analysis
3
Exciter
3
Icoms
3
Figure 2 - Typical Crystal Characteristics
3
Audio IC
4
Buffer, Phase Modulators & Amplifiers
4
Power Amplifier
4
Buffer, Multipliers & Amplifier
4
RF Amplifiers
4
Figure 3 - Equivalent ICOM Circuit
4
Figure 4 - Simplified Audio IC
4
Power Control Circuit
5
Carrier Control Timer
5
Maintenance
5
Disassembly
5
Figure 5 - Disassembly Procedure (Top View)
5
Figure 6 - Disassembly Procedure (Bottom View)
5
PA Transistor Replacement
6
Figure 9 - Frequency Characteristics Vs. Temperature
7
Alignment Procedure
8
Test Procedures
9
Power Output
9
Tone Deviation
9
Voice Deviation
9
Figure 10 - 40-Watt Power Output Setting Chart
9
Figure 11 - 38-Watt Power Output Setting Chart
9
Figure 12 - 35-Watt Power Output Setting Chart
9
Troubleshooting
11
Exciter
11
Outline Diagram
13
Exciter
15
Power Amplifier
19
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