Codan_2110_serv
Manpack Transceiver 2110 series
Repair Guide
No part of this guide may be reproduced, transcribed, translated into any language or
transmitted in any form whatsoever without the prior written consent of Codan Limited.
© Copyright 2010 Codan Limited.
CODAN™, NGT™, Easitalk™, CIB™ and CALM™ are registered trademarks of
Codan Limited. Other brand, product and company names mentioned in this document
are trademarks or registered trademarks of their respective holders.
Codan part number 15-04139-EN Issue 1, October 2010.
The English version takes precedence over any translated versions.
www.codan.com.au
Head Office
Codan Limited
ABN 77 007 590 605
81 Graves Street
Newton SA 5074
AUSTRALIA
Telephone +61 8 8305 0311
Facsimile +61 8 8305 0411
[email protected]
Codan (UK) Ltd
Unit C4 Endeavour Place
Coxbridge Business Park
Farnham Surrey GU10 5EH
UNITED KINGDOM
Telephone +44 1252 717 272
Facsimile +44 1252 717 337
[email protected]
Codan US, Inc.
1 Fishers Road
Pittsford NY 14534
USA
Telephone +1 585 419 9970
Facsimile +1 585 419 9971
[email protected]
Table of contents
Index
Introduction
Overview of this guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
How to use this guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Board replacement philosophy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Circuit board precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Transmitter precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Probe precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Contact information
Ordering information
Overview
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Front panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Back panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Battery pack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Brief description
General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Transmit path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Front Panel PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Audio & Control PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
RF/IF & Synthesiser PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
PA & Filter PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Antenna Tuner PCB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Receive path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Antenna Tuner PCB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
PA & Filter PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
RF/IF & Synthesiser PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Audio & Control PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Front Panel PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Antenna tuning process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Synthesiser operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Control and switching. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Manpack Transceiver 2110 series Repair Guide
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Table of contents
Interconnection diagrams and listed spares drawings
Functional description of PCBs
RF/IF & Synthesiser PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
PA & Filter PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Audio & Control PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Antenna Tuner PCB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Front Panel Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Front Panel PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Repair procedures, tests, and adjustments
Test equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Setup of test equipment for 2110. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Repair procedures and fault diagnosis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Mechanical inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Operational tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Receive tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Transmit tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Disassembling the transceiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Adjusting frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Adjusting the PA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Re-assembling the transceiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Checking the battery charging process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Replacing battery cells. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Replacing the fuse in the battery pack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Flowcharts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Test sheet for the 2110 series Manpack Transceiver. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Options
Definitions
Standards and icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Acronyms and abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Circuit reference designations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Unit multipliers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
About this issue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
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Manpack Transceiver 2110 series Repair Guide
Table of contents
Specifications
General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .127
Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .129
Transmitter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .130
Antenna tuner. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .131
GPS connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .131
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Manpack Transceiver 2110 series Repair Guide
List of figures
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The 2110 series Manpack Transceiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Front panel of the transceiver (2110 model shown) . . . . . . . . . . . . . . . . . . . . . . . . . .11
Front view of the handset connector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Front view of the external GPS antenna connector (2110 only). . . . . . . . . . . . . . . . .13
Front view of the 19-way GPIO connector (2110 only) . . . . . . . . . . . . . . . . . . . . . . .14
Front view of the 5-way connector (2110v only) . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Back panel of the transceiver unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Front view of the battery connector on the transceiver unit . . . . . . . . . . . . . . . . . . . .17
Front view of the battery pack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Front view of the battery connector on the battery pack . . . . . . . . . . . . . . . . . . . . . .18
RF/IF & Synthesiser PCB (08-06039-001) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
PA & Filter PCB (08-06064-001). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Audio & Control PCB (08-06128-001) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Antenna Tuner PCB (08-06063-001) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Front Panel PCB (08-06129-001) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Setup for artificial antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
Setup for RF sampler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
Setup for 2110. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
Balance control on the 0208 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
Acceptable two-tone RF envelope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
Defective two-tone RF envelope (typical overbias of PA). . . . . . . . . . . . . . . . . . . . .73
Defective two-tone RF envelope (typical underbias of PA). . . . . . . . . . . . . . . . . . . .74
Defective two-tone RF envelope (typical spurious-related problems) . . . . . . . . . . . .74
Intermodulation measurements using a spectrum analyser . . . . . . . . . . . . . . . . . . . .75
Removing the housing from the chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77
Setup for vacuum test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84
Typical front panel of a battery charger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87
Connections between the battery cells and the Battery Monitor PCB . . . . . . . . . . . .90
Repair flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .95
Disassembly flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .97
Power On fault diagnosis flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .99
Receive fault diagnosis flowchart 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101
Receive fault diagnosis flowchart 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103
Transmit fault diagnosis flowchart 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .105
Transmit fault diagnosis flowchart 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .107
GPS receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .115
Connector for external GPS antenna. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .116
Voice encryptor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .117
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .117
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Manpack Transceiver 2110 series Repair Guide
List of tables
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Pinouts of the handset connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Pinouts of the external GPS antenna connector (2110 only) . . . . . . . . . . . . . . . . . . .13
Pinouts of the 19-way GPIO connector (2110 only) . . . . . . . . . . . . . . . . . . . . . . . . .14
Pinouts of the 5-way connector (2110v only). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Pinouts of the battery connector on the transceiver unit. . . . . . . . . . . . . . . . . . . . . . .17
Pinouts of the battery connector on the battery pack . . . . . . . . . . . . . . . . . . . . . . . . .18
List of drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Test points for the RF/IF & Synthesiser PCB (08-06039-001) . . . . . . . . . . . . . . . . .34
Test points for the PA & Filter PCB (08-06064-001). . . . . . . . . . . . . . . . . . . . . . . . .38
Test points for the Audio & Control PCB (08-06128-001) . . . . . . . . . . . . . . . . . . . .41
Test points for the Antenna Tuner PCB (08-06063-001) . . . . . . . . . . . . . . . . . . . . . .45
Test points for the Front Panel PCB (08-06129-001). . . . . . . . . . . . . . . . . . . . . . . . .49
Test equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
Settings for test equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
Default settings for the transceiver during testing . . . . . . . . . . . . . . . . . . . . . . . . . . .60
20/25 W output power scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
4/5 W output power scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
Typical charging times for Codan battery packs . . . . . . . . . . . . . . . . . . . . . . . . . . . .86
LED indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .87
Front Panel Assembly and Final Assembly with GPS connector. . . . . . . . . . . . . . .116
General specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .127
Receiver specifications at 50  antenna connector . . . . . . . . . . . . . . . . . . . . . . . . .129
Transmitter specifications at 50  antenna connector . . . . . . . . . . . . . . . . . . . . . . .130
Antenna tuner specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .131
GPS connector specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .131
Manpack Transceiver 2110 series Repair Guide
vii
List of tables
This page has been left blank intentionally.
viii
Manpack Transceiver 2110 series Repair Guide
Index
A
A/F
distortion 130
power 130
response 130
adjustments 79
AGC 129
test 65
ALC 131
test 70
alternative charger requirements 89
antenna tuner
specifications 131
Antenna Tuner test
receive 63
transmit 69
Audio Output test 65
B
Basic Receive test 63
Basic Transmit test 68
battery cells
replacing 90
battery discharge regime 89
blocking 129
brief description 19
control and switching 24
receive path 23
synthesiser operation 24
transmit path 22
C
carrier suppression 130
channels
capacity 127
circuit board precautions
connection/disconnection 3
de-soldering 3
grounding 3
handling 3
soldering 3
circuit reference designations 123
clarifier 130
connectors 11
battery pack
battery 18
external GPS antenna 13
transceiver unit
19-way GPIO 14
5-way 15
Manpack Transceiver 2110 series Repair Guide
battery 17
handset 12
contact information 5
control and switching 24
cooling 128
D
description
functional
PCB 27
desensitisation 129
Disassembly flowchart 97
discharge regime
battery 89
disposal 2
distortion
A/F 130
Distortion test 73
using an oscilloscope 73
drawings 25
driver bias
adjusting 80
duty cycle 130
E
emission
harmonic 130
spurious 130
F
fault diagnosis 55
fault finding 51
flowcharts 93
Disassembly 97
Power On fault diagnosis 99
Receive fault diagnosis 101, 103
Repair 95
Transmit fault diagnosis 105, 107
frequency
generation 127
IF 129
range 127
stability 127
Frequency test 69
functional description
PCB 27
Antenna Tuner 44
Audio & Control 40
Front Panel 48
PA & Filter 37
RF/IF & Synthesiser 33
Index-1
Index
G
P
general specifications 127
GPS connector
specifications 131
PA
H
Handset test 62
harmonic emissions 130
heatsink 130
high output power
adjusting 81
I
image rejection 129
impedance 127
intermodulation 129, 131
Intermodulation test 75
L
low output power
adjusting 82
Low Power test 72
low voltage switch off 127
M
maintenance
general
spare boards 2
precautions
probe 4
transmitter 4
mechanical inspection 58
microphone 130, 131
N
Noise Limiter test 67
O
operating modes 127
operational tests 59
examining the profile 60
Handset 62
Power On 59
setting up equipment for 56
options 115
ordering information 7
output power 130
overview 9, 10, 127
Index-2
adjusting 79
driver bias 80
high output power 81
low output power 82
PA bias 80
PCB layout
Antenna Tuner 32
Audio & Control 32
Front Panel 32
PA & Filter 30
RF/IF & Synthesiser 30
pin connections 11
battery pack
battery connector 18
external GPS antenna connector 13
transceiver unit
19-way GPIO connector 14
5-way connector 15
battery connector 17
handset connector 12
power
A/F 130
output 130
reflected 130
Power On fault diagnosis flowchart 99
Power On test 59
precautions
circuit board
connection/disconnection 3
de-soldering 3
grounding 3
handling 3
soldering 3
programming 127
protection 130
input 129
overvoltage 127
thermal 130
R
receive
path
brief description 23
tests 63
AGC 65
Antenna Tuner 63
Audio Output 65
Basic Receive 63
Noise Limiter 67
Selectivity 66
Sensitivity 64
Receive fault diagnosis flowchart 101, 103
Manpack Transceiver 2110 series Repair Guide
Index
receiver
specifications 129
relative humidity 128
repair 51
Repair flowchart 95
repair procedures 55
response
A/F 130
RF Output Power test 71
S
selectivity 129
Selectivity test 66
sensitivity 129
Sensitivity test 64
sideband
unwanted 130
signal
input 130
size 128
spare boards 2
specifications 9, 127
antenna tuner 131
general 127
GPS connector 131
receiver 129
transmitter 130
spurious
emissions 130
responses 129
supply current 127, 130
supply voltages 127
suppression
carrier 130
switch off
low voltage 127
synthesiser operation 24
T
temperature 128
test
equipment 52
operational 59
examining the profile 60
Handset 62
Power On 59
setting up equipment for 56
receive 63
AGC 65
Antenna Tuner 63
Audio Output 65
Basic Receive 63
Noise Limiter 67
Selectivity 66
Sensitivity 64
Manpack Transceiver 2110 series Repair Guide
sheet 109
transmit 68
ALC 70
Antenna Tuner 69
Basic Transmit 68
Distortion 73
Frequency 69
Intermodulation 75
Low Power 72
RF Output Power 71
setting up equipment for 57
transceiver
disassembly 77
transmit
fault diagnosis flowchart 107
path
brief description 22
tests 68
ALC 70
Antenna Tuner 69
Basic Transmit 68
Distortion 73
using an oscilloscope 73
Frequency 69
Intermodulation 75
Low Power 72
RF Output Power 71
setting up equipment for 57
Transmit fault diagnosis flowchart 105
transmitter
specifications 130
tuning limit 131
U
unwanted sideband 130
V
voltages
supply 127
W
weight 128
Index-3
Index
This page has been left blank intentionally.
Index-4
Manpack Transceiver 2110 series Repair Guide
Introduction
Overview of this guide
This Repair Guide is intended for use by personnel at Codan-trained Service Centres and
Accredited Service Centres, enabling rapid and cost-effective servicing of the
2110 series Manpack Transceiver.
This guide provides an overview of the equipment and its specifications, functional
descriptions, fault diagnosis to board level, board replacement, functional testing and
interconnection drawings for the 2110 series Manpack Transceiver. The fault diagnosis
and testing procedures provided assume that the transceiver does not have any hardware
options fitted. A list of available hardware options is included with this guide.
This guide assumes that you have a good understanding of electronics with a technical
background, and that you understand operation and setup processes for the transceiver. It
also assumes that you have access to the relevant Getting Started Guide or Reference
Manual for your manpack transceiver.
This guide contains the following sections:
Contact information—provides details of how to access up-to-date contact information
from Codan’s website
Ordering information—explains the details required by Codan to ensure prompt service
and delivery
Overview—general description of the 2110 series Manpack Transceiver
Brief description—brief technical description of the 2110 series Manpack Transceiver
including a general description of the major circuit functions for the control, reception
and transmission of signals
Interconnection diagrams and listed spares drawings—provides drawings that are
required during repair of a 2110 series Manpack Transceiver
Functional description of PCBs—functional description of each PCB, including a list of
test points and PCB layouts
Repair procedures, tests, and adjustments—provides flowcharts and tests for identifying
faulty subassemblies, and a test sheet for recording test data
Options—provides drawings and instructions for identifying and checking correct
operation of hardware options in the transceiver
Definitions—lists all standards, acronyms, abbreviations and units used in this guide
Specifications—provides specifications for the 2110 series Manpack Transceiver
Manpack Transceiver 2110 series Repair Guide
1
Introduction
How to use this guide
The printed version of this guide supplied by Codan contains pages that fold out beyond
the folder on either side. This enables you to view block diagrams, test-point layouts and
flowcharts while reading relevant text on tests and procedures.
Begin the fault diagnosis process by using the Repair flowchart (see Figure 29 on
page 95). The same flowchart is also used to confirm that a transceiver is operating
correctly.
Follow the steps in the Repair flowchart systematically to ensure the correct fault is
isolated. If you step out of the flowchart to a test procedure, return to the same point on
the flowchart upon completing the test, and continue as prompted.
At some points where a pass criteria is not met, the Repair flowchart refers to a functionspecific fault diagnosis flowchart. Some steps require a simple task to be performed.
Other steps require a test to be performed. In such a case, the PCB, test point, and test
condition are provided.
NOTE
Not all faults may be diagnosed from the fault diagnosis flowcharts due to
the complex nature of the transceiver. In such an instance, or to confirm
that a PCB is faulty, see page 27, Functional description of PCBs.
Board replacement philosophy
To facilitate rapid and cost-effective servicing, and to effectively manage the increasing
sophistication of electronic assemblies, a strategy of board replacement applies to all
2110 series Manpack Transceivers.
As part of this strategy, all boards are designed and tested so that any individual board
can be replaced, while maintaining factory specifications of the entire unit.
If functional spare boards are held in stock, they may be substituted during the fault
diagnosis process in order to positively localise the fault to one board.
Disposal
Depending on the regulations within your country, some items from the transceiver may
need to be returned to a recycling facility for correct disposal. Please be aware of any
such regulations in your country and act accordingly.
CAUTION
This product contains lead solder.
Please be aware of your organisation’s policies for safeguarding the disposal of security
products. Please contact your Codan representative for further information on this
matter, if required.
2
Manpack Transceiver 2110 series Repair Guide
Introduction
Circuit board precautions
Connection/Disconnection
Ensure that any power supply or battery is switched off or disconnected before making
connections or disconnections between circuit boards.
Handling
Handle circuit boards by the edges only. Use antistatic bags or trays to store and transport
PCBs.
Grounding
Ground any items that may come into contact with the circuit board as follows:
•
Discharge static charges, which may build up on a person, by touching a grounded
metal surface with both hands. This should be done before working on circuit
boards, and at frequent intervals while working on circuit boards.
•
Wear a suitably grounded conductive wrist strap and use an anti-static mat. This
minimises the build up of static on you.
•
Ensure that all test equipment is properly earthed through its power connection or by
earthing it to the workbench or anti-static mat.
Soldering
Excessive heat from soldering may lift tracks from the circuit boards and cause serious
damage. Avoid the use of high-powered soldering irons. A soldering iron rated at a
maximum of 60 W, preferably temperature-controlled at approximately 370°C, is
sufficient for most tasks. A soldering iron rated at a slightly higher temperature of 425°C
may be required for heavier components such as PA transistors. Only apply the soldering
iron long enough to de-solder an existing joint, or to solder a new one.
CAUTION
Do not use lead-free solder for new soldering work.
De-soldering
When de-soldering a component, use a solder sucker or solder wick to remove existing
solder.
CAUTION
Do not use sharp metal tools such as screwdrivers or twist drills to remove
components as these may damage the printed circuit track and plated thruholes.
A special de-soldering station is recommended for plated thru-holes.
Manpack Transceiver 2110 series Repair Guide
3
Introduction
Transmitter precautions
When making measurements of the low-level stages of the exciter, it is advisable to
remove the drive to the PA & Filter PCB. The supply voltage is applied to the PA at all
times when the transceiver is switched on.
CAUTION
Caution should be exercised when connecting test equipment to avoid
incorrect readings and/or damage.
Probe precautions
Observe the following when connecting oscilloscope probes to the transceiver:
4
•
When connecting probes to the PA assembly, the earth clip lead should be wound
around the body of the probe so that the earth clip can be earthed to the ground plane
as close as possible to the point of measurement. This reduces stray RF pick-up.
•
It is not advisable to connect two probes at the same time, particularly when one is
earthed to the PA ground plane and the other is earthed to the exciter. This may
cause earth loop problems.
•
Probes should be connected before power has been applied to the transceiver and the
test equipment. The earth connection should be made first and disconnected last.
Manpack Transceiver 2110 series Repair Guide
Contact information
If the fault diagnosis guidelines do not locate the faulty module or cable, or if further
technical assistance is required for any other reason, please see our contact details on the
at the top of the page.
internet at www.codan.com.au. Click on
Outside of normal office hours, Codan has Customer Service Engineers on call to
provide emergency technical assistance. They will either answer your call immediately
or return your call as soon as possible.
If you are connected to a voice mail system when you call, please follow the instructions
carefully, that is, leave your name and contact phone number (including the country
code), then a brief, clear description of your problem.
Manpack Transceiver 2110 series Repair Guide
5
Contact information
This page has been left blank intentionally.
6
Manpack Transceiver 2110 series Repair Guide
Ordering information
Orders for replacement parts/modules must include the following information:
•
equipment type (e.g. Type 2110 Transceiver)
•
Codan part number (e.g. 08-06039)
•
module description (e.g. Antenna Tuner PCB)
This ensures that the correct items are supplied, and speeds up delivery times.
NOTE
The ordering information for some boards requires an extension to the
Codan part number, for example, -101 or -201. Please refer to the listed
spares drawings for this correct extension (see page 25, Interconnection
diagrams and listed spares drawings).
Manpack Transceiver 2110 series Repair Guide
7
Ordering information
This page has been left blank intentionally.
8
Manpack Transceiver 2110 series Repair Guide
Overview
This section contains the following topics:
General (10)
Connectors (11)
Manpack Transceiver 2110 series Repair Guide
9
Overview
General
The 2110 series Manpack Transceiver typically consists of:
•
a transceiver unit
•
a battery pack
•
a handset
Figure 1:
The 2110 series Manpack Transceiver
N
HA
S
NA
AS
EN
T
NN
N
E
A
T
RE
AN
WI
LE
G
O
N
P
LO D DI
N
ND
A
A
IP
ND
WH DBA
A
O
BR
R
10
,G
32
S2
PI
ND
OA
DS
ET
TT
BA
EA
D
R
TO
AP
C
NS
R
IVE
AC
YP
R
E
K
IT
UN
E
A
TR
AC
RF
TE
IN
Manpack Transceiver 2110 series Repair Guide
Overview
Connectors
Front panel
Figure 2:
Front panel of the transceiver (2110 model shown)
antenna
stud
handset
connector
TUNE
QZ
1
CLAR
2 ABC
FREE
Rx
4 GHI
MODE
DEF
3
Tx
PWR
5 JKL
6
GPS
7
PRS
EASI
TALK
earth
terminal
50 Ω
connector
SEC
TUV
GPS
8
9
VIEW
CALL
LOGS
0
19-way GPIO
connector
NOTE
The 2110v Manpack Transceiver uses a 5-way connector in the place of
the 19-way GPIO connector (
).
NOTE
The GPS connector is optional for the 2110 Manpack Transceiver (see
page 115, Options).
HF antenna connectors
The HF antenna connectors comprise:
•
an antenna stud ( )
•
a 50  connector ( )
The HF antenna connectors are grounded using the earth terminal ( ).
Manpack Transceiver 2110 series Repair Guide
11
Overview
Pinouts of the handset connector
Figure 3:
E
Front view of the handset connector
A
F
B
D
C
Table 1:
Pinouts of the handset connector
Pin no. Function
12
Input/output
Signal level
A
Ground
0V
B
Earphone
Output
10 V p–p maximum (600 )
C
PTT
Input
Active low for PTT
D
Microphone (switched)
Input
15 mV p–p (ALC threshold)
E
Power
Output
+12 V nominal
F
Not used
Manpack Transceiver 2110 series Repair Guide
Overview
Pinouts of the external GPS antenna connector (2110 only)
The external GPS antenna connector provides an interface for GPS signals. It
automatically detects signals and sends these to the internal GPS receiver for processing.
Figure 4:
Front view of the external GPS antenna connector (2110 only)
Table 2:
Pinouts of the external GPS antenna connector (2110 only)
Connection
Function
Centre pin
Active GPS antenna
Sleeve
GPS antenna ground
For specifications of this connector see Table 25 on page 131.
Manpack Transceiver 2110 series Repair Guide
13
Overview
Pinouts of the 19-way GPIO connector
Figure 5:
A
B
C
D
Front view of the 19-way GPIO connector (2110 only)
P
R
E
M
N
V
S
F
Table 3:
L
U
T
G
K
J
H
Pinouts of the 19-way GPIO connector (2110 only)
Pin no. Function
Input/output
Signal level
A
Line audio
Input
300 mV p–p (ALC threshold)
I/P approx. 50 k bridging
C
Line audio
Output
1 V p–p (20 dB above AGC)
600  load maximum
D
Morse
Input
Active low
E
RS232 Tx data
Output
RS232
F
RS232 Rx data
Input
G
PTT
Input
H
Power and signal ground
J
Speaker (+) audio bridging
Output
1 W into 4 
K
Protected, switched supply
from battery
Output
12 V DC nominal
10 to 15 V DC range
1 A maximum
L
Speaker (–) audio paired
with J
Output
1 W into 4 
M
Power in for charging battery Input
15.5 V DC approx.
1 A maximum, current
limiting
N
Antenna control
Input
3.3 V DC logic
5 V DC maximum
Input/output
3.3 V DC logic
5 V DC maximum
Output
Open collector with 1 k
pull-down
B
P
R
14
Scan
Active low
0 V DC
Manpack Transceiver 2110 series Repair Guide
Overview
Table 3:
Pinouts of the 19-way GPIO connector (2110 only) (cont.)
Pin no. Function
Input/output
Signal level
S
RS232 RTS
Output
RS232
T
RS232 CTS
Input
U
External PA ALC
Input
0 to 5 V DC analogue
V
Quiet
Input
Active low
Pinouts of the 5-way connector
Figure 6:
Front view of the 5-way connector (2110v only)
A
B
E
C
Table 4:
D
Pinouts of the 5-way connector (2110v only)
Pin no. Function
Input/output
Signal level
A
Power in for charging battery Input
15.5 V DC approx.
1 A maximum, current
limiting
B
RS232 Tx data
(for programming)
Output
RS232
C
Morse
Input
Active low
D
Ground
E
RS232 Rx data
(for programming)
Manpack Transceiver 2110 series Repair Guide
0V
Input
RS232
15
Overview
Back panel
Figure 7:
16
Back panel of the transceiver unit
Manpack Transceiver 2110 series Repair Guide
Overview
Pinouts of the battery connector on the transceiver unit
Figure 8:
F
A
E
Front view of the battery connector on the transceiver unit
B
C
D
Table 5:
Pinouts of the battery connector on the transceiver unit
Pin no. Function
Input/output
Signal level
A
Ground
B
Charge out
Output
15.5 V DC @ 1 A maximum,
current limiting
C
Battery (+)
Input
12 V DC nominal
D
SMB data
Input/output
3.3 V DC logic
E
SMB clock
Input/output
3.3 V DC logic
F
External PA ALC
Input
0 to 5 V DC analogue
Manpack Transceiver 2110 series Repair Guide
0 V DC
17
Overview
Battery pack
Figure 9:
Front view of the battery pack
Pinouts of the battery connector on the battery pack
Figure 10: Front view of the battery connector on the battery pack
B
A
C
F
E
D
Table 6:
Pinouts of the battery connector on the battery pack
Pin no. Function
18
Input/output
Signal level
A
Ground
0 V DC
B
Charge in
Input
15.5 V DC @ 3 A maximum,
current limiting
C
Battery (+)
Output
12 V DC nominal
D
SMB data
Input/output
3.3 V DC logic
E
SMB clock
Input/output
3.3 V DC logic
F
Spare
Manpack Transceiver 2110 series Repair Guide
Brief description
This section contains the following topics:
General information (21)
Transmit path (22)
Receive path (23)
Antenna tuning process (24)
Synthesiser operation (24)
Control and switching (24)
Manpack Transceiver 2110 series Repair Guide
19
Brief description
This page has been left blank intentionally.
20
Manpack Transceiver 2110 series Repair Guide
J2
J1
OUTPUT
DR
REFL
VC
FWD RWR
FWD
TP106 & 107
PHASE
Rx IF OUT
TP201
TP202
TP105
TP103 & 104
REF PWR
TP102
TP302
AGC
Tx AF
TP301
VCO
TP303
TP101
ALC
Rx AUDIO
TX_RX
03-01256
TP304
PLL REF
LOCK
DATA+
PIC CLK
CODEC
CLK
DATA-
Tx AUDIO
Rx AUDIO
AUDIO OUT A/B
EARPIECE
AUDIO+
A/F OUT
AUDIO IN + & -
AUDIO-
GP AUDIO IN + & GP AUDIO OUT + & LCD BIAS
DISPLAY
MUTE DET
W/DOG
CLKIN
CODAN
Brief description
General information
NOTE
The information in this section should be read in conjunction with the
block diagram (Codan part number 03-01256).
The transceiver uses double conversion in both the Receive and Transmit modes. The
455 kHz sideband filter, the 45 MHz BPF, the mixers MIX 1 and MIX 2, and the local
oscillators VCO and REF OSC, are common to both modes of operation.
Manpack Transceiver 2110 series Repair Guide
21
Brief description
Transmit path
Front Panel PCB
Microphone transmit audio appears at the handset connector. It is pre-amplified on the
Front Panel PCB, then passed onto the Audio & Control PCB.
Audio & Control PCB
Pre-amplified audio from the Front Panel PCB passes through the optional encryptor
module (where fitted), the codec, and DSP on the Audio & Control PCB. The processing
utilises a compression algorithm that converts the audio signal to a relatively constant
level. The signal is passed to the RF/IF & Synthesiser PCB.
RF/IF & Synthesiser PCB
The audio is mixed with the local oscillator to produce double sideband. It is filtered by a
2.5 kHz sideband filter centred on 455 kHz so that only the wanted sideband is passed to
the second mixer. It is then mixed with the reference oscillator to produce an IF signal
centred on 45 MHz.
The transmit signal is filtered by a BPF with a bandwidth of 15 kHz, before being passed
to the input of the first mixer.
At the first mixer, the signal mixes with the local oscillator VCO to produce the required
channel frequency. The signal is passed to the PA & Filter PCB.
PA & Filter PCB
On the PA & Filter PCB, the signal passes through the first transmit/receive relay to the
amplifier. Following amplification, it passes through the second transmit/receive relay to
the selected LPF.
The output from the LPF passes via the VSWR DETECTOR circuit to the output
connector. From there it is connected by coaxial cable to the Antenna Tuner PCB.
Antenna Tuner PCB
The signal from the PA & Filter PCB is either directly switched to the 50  antenna
connector (J2) or switched via a set of impedance-matching components to the antenna
stud. Matching components are selected during an iterative tuning process (see page 24,
Antenna tuning process).
22
Manpack Transceiver 2110 series Repair Guide
Brief description
Receive path
Antenna Tuner PCB
The antenna tuner switches the signal received through either the 50  antenna
connector (J2) or the antenna stud to the PA LPF. The signal from the 50  antenna
connector is switched directly. The signal from the antenna stud is connected via a set of
matching components, selected during the tuning process or via the scanning amplifier.
PA & Filter PCB
The receive signal from the Antenna Tuner PCB passes through a PA LPF to the
transmit/receive relays. It is then passed to the Tx/Rx connector on the RF/IF &
Synthesiser PCB.
RF/IF & Synthesiser PCB
From the receiver input, the signal passes via a selectable pre-amplifier V101 to the input
of the first balanced mixer. Here it mixes with the local oscillator VCO to produce an IF
signal centred on 45 MHz.
The 45 MHz signal is filtered using a BPF with a bandwidth of 15 kHz, before being
passed to the second balanced mixer. The signal mixes with the third harmonic
(44.545 MHz) of the reference oscillator to produce an IF signal centred on 455 kHz.
The output of the second mixer passes through a 2.5 kHz sideband filter so that only the
wanted sideband is fed to the high-gain AGC IF amplifier.
The amplified 455 kHz signal is demodulated to produce an audio signal and also to
operate an AGC circuit. This circuit controls the gain of the IF amplifier to prevent
overloading when strong signals are received. It also maintains constant audio output
with changing input levels.
Audio & Control PCB
Analogue receive audio from the RF/IF & Synthesiser PCB passes though the optional
encryptor module (where fitted), then through the codec and DSP on the Audio &
Control PCB. The codec produces separate outputs, which can be either unprocessed
(raw) audio, or enhanced (noise-reduced, volume-controlled) audio, which then passes
via separate, balanced paths to the Front Panel PCB.
Front Panel PCB
Unprocessed (raw) audio from the Audio & Control PCB is typically passed by the Front
Panel PCB to the line output on the 19-way GPIO connector. Enhanced (noise-reduced,
volume-controlled) audio is passed to three separate audio amplifiers on the Front
Panel PCB. These feed the GPIO external speaker output, the military handset earphone,
and the internal speaker. These outputs can be selectively controlled.
Manpack Transceiver 2110 series Repair Guide
23
Brief description
Antenna tuning process
Tuning is an iterative process in which selection of impedance-matching components is
determined by an on-board microcontroller. A frequency-dependent algorithm decides
on a consecutive selection, taking into account the phase and VSWR measurements. The
process is repeated until matching is achieved.
Synthesiser operation
The transceiver uses a single-loop synthesiser. The synthesiser VCO is used as the first
mixer LO, generating an oscillator frequency in 10 Hz steps. In Receive mode, the
frequency of the oscillator ranges from 45.25 MHz to 75 MHz. In Transmit mode, the
frequency of the oscillator ranges from 46.6 MHz to 75 MHz.
The reference oscillator at 14.848333 MHz is fed through a 44.5 MHz BPF to select the
third harmonic to produce the 44.545 MHz second mixer LO. The 14.848333 MHz
frequency is also fed to two DDS ICs to produce a variable reference frequency for VCO
with 10 Hz resolution.
The second DDS IC produces 456.5 kHz for USB and 453.5 kHz for LSB for the
transmit modulator (Tx MOD) and receive demodulator (Rx DEMOD) circuits.
Control and switching
Most functions of the transceiver are controlled by a DSP and microcontrollers. The DSP
reads key strokes entered by the user. Update information is sent to the LCD via a
dedicated bus.
Information exchange between the DSP on the Audio & Control PCB and the PA &
Filter PCB, RF/IF & Synthesiser PCB, and Antenna Tuner PCB is accomplished via four
microcontrollers that share a communications bus. Information exchange between the
Audio & Control PCB and Front Panel PCB is accomplished via a separate dedicated
data bus.
24
Manpack Transceiver 2110 series Repair Guide
Interconnection diagrams and listed spares
drawings
The drawings in this section are required during repair of a 2110 series Manpack
Transceiver.
Please refer to the listed spares drawings for ordering information. For example, if you
need to order a new Audio & Control PCB 08-06128-001, the listed spares drawing for
this indicates that you should order 08-06128-101.
Table 7:
List of drawings
Title
Drawing number
Interconnection Diagram
04-03515
2110 Unit, with front handles—Listed Spares
16-00116 (sheet 1)
16-00116 (sheet 2)
16-00116 (sheet 3)
16-00116 (sheet 4)
16-00116 (sheet 5)
16-00116 (sheet 6)
16-00116 (sheet 7)
2110 Unit, with side handles—Listed Spares
16-00120 (sheet 1)
16-00120 (sheet 2)
16-00120 (sheet 3)
16-00120 (sheet 4)
16-00120 (sheet 5)
16-00120 (sheet 6)
16-00120 (sheet 7)
Manpack Transceiver 2110 series Repair Guide
25
Interconnection diagrams and listed spares drawings
This page has been left blank intentionally.
26
Manpack Transceiver 2110 series Repair Guide
04-03515
CODAN
16-00116 (sheet 1)
16-00116 (sheet 2)
16-00116 (sheet 3)
16-00116 (sheet 4)
16-00116 (sheet 5)
16-00116 (sheet 6)
16-00116 (sheet 7)
16-00120 (sheet 1)
16-00120 (sheet 2)
16-00120 (sheet 3)
16-00120 (sheet 4)
16-00120 (sheet 5)
16-00120 (sheet 6)
16-00120 (sheet 7)
Functional description of PCBs
This section contains the following topics:
RF/IF & Synthesiser PCB (33)
PA & Filter PCB (37)
Audio & Control PCB (40)
Antenna Tuner PCB (44)
Front Panel Assembly (46)
Front Panel PCB (48)
NOTE
The functional description should be read in conjunction with the brief
description (see page 19, Brief description).
Manpack Transceiver 2110 series Repair Guide
27
Functional description of PCBs
This page has been left blank intentionally.
28
Manpack Transceiver 2110 series Repair Guide
Functional description of PCBs
This page has been left blank intentionally.
Manpack Transceiver 2110 series Repair Guide
29
Functional description of PCBs
Figure 11: RF/IF & Synthesiser PCB (08-06039-001)
Ref. freq.
adjust
45 MHz Ref. Freq.
filter align output
TP104
TP202
TP105
Figure 12: PA & Filter PCB (08-06064-001)
+10 VTx TP201
+10 VRx
T201
Noise limiter
align
TP106
TP103
Noise limiter
link
TP102
L123
L124
L125
MIXER 1
AM carrier
level adjust
TP107
FWDPWR
VC
TP302
OUTPUT
INT
VCO
TP101
Tx exciter
output
TP304
SDA
REF
PWR
OP
ALC
SCL
PWR
CTRL
DR
THERM
L311
ALC
J101
EXT
ALC
VCO
L312
Rx IF
OUT
PROG
LOCK
RESET
+3V5
Tx_Rx
ADC
TP303
+10 V
INT
SUM
Rx AUDIO
Tx AF
AGC
+5 VSW
RESET
+3V3
+5V5
+10 V
A
DR
BIAS
O/P
BIAS
+12 VSW
SDA SCL
+28 V
TP301 Trig. ~5 MHz
VCO volts
PLL ref.
align
PLL
ref.
Tx output
level adjust
RF output
J1
A fuse
HI PWR
adjust
LO PWR
adjust
PA O/P
fuse
RF drive
J2
Balance
adjust
1 x 0.2 mm TCW
KINK DOWN
ELEVATION OF FUSE A AND FUSE PA O/P
30
Manpack Transceiver 2110 series Repair Guide
Functional description of PCBs
This page has been left blank intentionally.
Manpack Transceiver 2110 series Repair Guide
31
Functional description of PCBs
Figure 13:
Audio & Control PCB (08-06128-001)
GP_AUDIO_OUT-
Figure 14: Antenna Tuner PCB (08-06063-001)
A
+3V3
K9
K8
K10
K7
SCLK
K23
+10 V
AUDIO_OUT_A
AUDIO_OUT_B
GP_AUDIO_IN+
SDA
SCL
CAL
POWER_GOOD
STROBE
K11
+5 V
K6
DR
-INT2
-INT1
-INT0
-INT3
DX
DATA
K22
K12
SCLK
FS
K4
GP_AUDIO_OUT+
K13
K21
K5
GP_AUDIO_IN-
SCL
K14
K3
+1V8
MISO
-HOLD
K20
K15
Tx_AUDIO
MUTE_DET
PHASE
PIC_CLK
SDA
-RESET
K19
MUTE_ADJ
Rx_AUDIO
GND
Mute adjust
R163
AUDIO_IN+
AUDIO_IN-
K18
K16
REFL
FWD
X1
-SHZ
R/-W
-PAGE2
-PAGE1
-PAGE0
+5VA
-PAGE3
97
K17
DSP_CLK
BLANK
+3V3
K2
K1
+9 V
DGND
INT
CODEC_CLK
WDOG_CLKIN
53 54
Figure 15: Front Panel PCB (08-06129-001)
DATA+
LCD_BIAS
DATA-
SPARE
AUDIO-
PTT
AUDIO+
EARPIECE
+1V65
AF_OUT
+3V3
+5V_HC
GND
A
32
Manpack Transceiver 2110 series Repair Guide
Functional description of PCBs
RF/IF & Synthesiser PCB
The RF/IF & Synthesiser PCB performs the following functions:
•
provides a low-level RF signal at the channel frequency, modulated with the Tx
audio
•
switches the Tx/Rx paths
•
modulates and demodulates the audio signal
•
mixes the 455 kHz IF, band-pass filtering (Z201), and amplification
•
mixes the 45 MHz IF, band-pass filtering (Z101, Z102), and amplification
•
limits noise
•
provides a REF OSC for the DDS, PLL and LO2 circuits
•
generates 45.25 to 75 MHz references for the 1st mixer via a VCO and PLL
•
provides switchable RF pre-amplification of the incoming Rx signal
•
switches between USB and LSB
•
provides the RF source for a tune signal
•
provides AGC control
•
interprets commands from the Audio & Control PCB
The RF/IF & Synthesiser PCB contains:
•
Tx mixers
•
Rx mixers
•
a noise limiter
•
a Tx modulator
•
an Rx demodulator
•
a PLL
•
a DDS
•
a VCO
•
a PIC microcontroller
•
a Crystal Oven PCB
For details on the RF/IF & Synthesiser PCB,
Codan part number
See...
08-06039-001
Table 8 on page 34 and
Figure 11 on page 30
Manpack Transceiver 2110 series Repair Guide
33
Functional description of PCBs
08-06039-001
CAUTION
If this PCB is replaced, ensure that:
• IC308 has the same (or later) firmware version as the original
• the reference oscillator has the same part number and/or required
stability
• the replacement PCB has the same (or later) PCB version as the
original, that is 07-02012-vv
When ordering a replacement PCB, use the information in the listed spares drawing to
select the correct assembly (see page 25, Interconnection diagrams and listed spares
drawings).
NOTE
All input signals for measuring Tx voltages are –10 dBv two-tone signals
from the 0208 test set (or equivalent), unless stated otherwise. This signal
level provides maximum ALC and therefore maximum output power for
taking the measurement.
NOTE
All input signals for measuring Rx voltages are –10 dBm from the RF
signal generator at ±1 kHz from SCF.
Table 8:
Test points for the RF/IF & Synthesiser PCB (08-06039-001)
Test point
Correct signal
Explanation
Source
+10V
+10 V DC
+10 V regulated supply
via Audio &
Control PCB
+10VRX
+10 V DC
+10 V in Rx
V401, V402, V403
+10VTX
+10 V DC
+10 V in Tx
V501, V502, V503
+28V
+28 V
+28 V from charge pump
IC302 and +10 V
+3V5
+3.5 V DC
+3.5 V regulated supply
IC208, V222, V225
AGC
+6.4 V DC no signal
Output of AGC circuit
IC204
INT
+3.5 V DC
LOCK
0 V DC, locked
+3.5 V DC, unlocked
Indicates if the PLL is locked
IC301
PLL REF
2 V p–p @ approx. 5 MHz
5 MHz reference for PLL
V311, REF OSC
RESET
+3.3 V DC
Reset line for PIC
IC104 master PIC,
Audio & Control PCB
Rx AUDIO
500 mV p–p Rx with
–110 dBm (0.7 µV EMF) @
50  port
Output Rx audio to Audio &
Control PCB
IC206, IC207
1 V p–p Rx with –47 dBm
(1 mV EMF) @ 50  port
34
Manpack Transceiver 2110 series Repair Guide
Functional description of PCBs
Table 8:
Test points for the RF/IF & Synthesiser PCB (08-06039-001) (cont.)
Test point
Correct signal
Explanation
Source
Rx IF OUT
500 mV p–p Rx with
–110 dBm @ 455.5 kHz
IF output of Rx signal prior to V217
demodulation
900 mV p–p Rx with –47 dBm
@ 455.5 kHz
SCL
–
Data (PIC clock)
IC104, Audio &
Control PCB
SDA
–
Data (PIC data)
IC104, Audio &
Control PCB
TP101
160 mV p–p Tx
175 mV p–p Rx
RF input/output J101 to PA &
Filter PCB J2
TP102
160 mV p–p Tx
Output of the Rx RF Pre-Amp V101
RF Pre-amp off:
175 mV p–p Rx
RF Pre-amp on:
420 mV p–p Rx
TP103
370 mV p–p Tx @
45000.5 kHz
Between MIX 1 and 45 MHz
filter
TP104
+1 V DC
V106, V107 Bias
TP105
+1 V DC @ 45000.5 kHz
V108, V113 Bias between
45 MHz filter and MIX 2
TP106
300 mV p–p Tx
Between MIX 2 and Noise
270 mV p–p Rx @ 455.5 kHz Amp/Gate
TP107
+1.2 V DC
V118 and V119 Bias
TP201
+3.5 V DC
0 V DC
Noise gate control from noise
amp
TP202
440 mV p–p Tx
RF side of 455 kHz filter
IC202
Noise limiter off:
6.3 V p–p Rx @ 455.5 kHz
Noise limiter on:
4.8 V p–p Rx @ 455.5 kHz
Manpack Transceiver 2110 series Repair Guide
35
Functional description of PCBs
Table 8:
Test points for the RF/IF & Synthesiser PCB (08-06039-001) (cont.)
Test point
Correct signal
Explanation
TP301
+2 to 22 V DC
DC output of the PLL feeding V306 to V310
the VCO
Test 1:
+1.5 V DC and +3.5 V DC @
45.25 MHz
Source
Test 2:
+7 V DC and +10.5 V DC @
60 MHz
Test 3:
+10 V DC and +20 V DC @
75 MHz
TP302
400 mV p–p
+3.3 V DC
45.25 to 75 MHz in 10 Hz
steps
Output of the VCO
V305
TP303
200 mV p–p
USB: 456.5 kHz
LSB: 453.5 kHz
Output of the divided REF
OSC frequency to Tx
modulator
IC307
TP304
3.5 V p–p
14.848333 MHz
Output of the REF OSC
REF OSC
TRIG
+3.5 V DC
Tx AF
900 mV p–p Tx
Audio input to Tx DEMOD
IC302, Audio &
Control PCB
VCO
200 mV p–p
45.25 to 75 MHz in 10 Hz
steps
Output of VCO to the PLL
V303, VCO
36
Manpack Transceiver 2110 series Repair Guide
Functional description of PCBs
PA & Filter PCB
The PA & Filter PCB performs the following functions:
•
amplifies the modulated Tx input signal to 25 W
•
provides ALC for the Tx signal
•
provides linear dynamic bias for the output transistors
•
provides ALC (detection of forward and reflected powers, PA collector voltage,
battery voltage, Tx/Rx relay failures, and thermal control of PA stage)
•
provides low-pass filtering to reduce spurious emissions
The PA & Filter PCB contains:
•
a gain control circuit (V25, V26)
•
a pre-driver circuit (V29 to V32)
•
the main power amplifier circuit (V36, V37)
•
a PIC (IC1)
•
a DC power relay (K12)
•
forward and reflected power detection (D1, D2)
•
an ALC circuit (IC7, IC8))
•
thermal control circuit (IC8)
For details on the PA & Filter PCB,
Codan part number
See...
08-06064-001
Table 9 on page 38 and
Figure 12 on page 30
Manpack Transceiver 2110 series Repair Guide
37
Functional description of PCBs
08-06064-001
If this PCB is replaced, ensure that IC1 has the same (or later) firmware
version as the original.
CAUTION
If the output FETs are replaced, some adjustments must be made (see
page 79, Adjusting the PA). Complete all the adjustments within this
section.
When ordering a replacement PCB, use the information in the listed spares drawing to
select the correct assembly (see page 25, Interconnection diagrams and listed spares
drawings).
NOTE
All input signals for measuring Tx voltages are –10 dBv two-tone signals
from the 0208 test set (or equivalent), unless stated otherwise. This signal
level provides maximum ALC and therefore maximum output power for
taking the measurement.
NOTE
All input signals for measuring Rx voltages are –10 dBm from the RF
signal generator at ±1 kHz from SCF.
WARNING
Ensure that the earth lead from the CRO probe is short when measuring at
the TX_RX test point.
Table 9:
Test points for the PA & Filter PCB (08-06064-001)
Test point
Correct signal
Explanation
Source
+10V
+10 V DC
Regulated supply
V2
+12VSW
+12 V DC
A rail, PTT active
V8
+3V3
+3.3 V DC
Regulated supply
IC10
+5V5
+5.5 V DC
Regulated supply
V38
+5VSW
+5.5 V DC
Rail, PTT active
V39
A
+12 V DC
Switched, unregulated battery
supply
Battery or power via
Fuse F3–F4
ALC (P control)
IC1
ADC
ALC
Approx. +3 V DC Tx
ALC (output to PA stage)
IC7
DR
+12 V DC
Driver collector voltage
V29 to V32
ALC from external device
(only if X1 linked)
Direct from GPIO
port (2110 only)
EXT ALC
FWD PWR
18 V p Tx
ALC (forward power)
D1
INT
–
Data (interrupt for PIC)
IC104 master PIC,
Audio & Control PCB
OP ALC
Approx. +4.3 V DC Tx
OUTPUT
110 V p–p Tx
38
IC7
Input/output for Antenna
Tuner PCB
Filter stage
Manpack Transceiver 2110 series Repair Guide
Functional description of PCBs
Table 9:
Test points for the PA & Filter PCB (08-06064-001) (cont.)
Test point
Correct signal
Explanation
PWR CTRL
Approx. 3.5 V DC Tx
REF PWR
100 V p Tx
ALC (reflected power)
D2
RESET
+3.3 V DC
PIC reset line
IC301 CPLD, Audio
& Control PCB
SCL
–
Data (synchronous clock for
PIC)
IC104 master PIC,
Audio & Control PCB
SDA
–
Data (serial data for PIC)
IC104 master PIC,
Audio & Control PCB
SUM
+4.2 V DC Tx
ALC (combined output power IC8
control)
THERM
0 V DC
IC8
ALC (thermal output power
control, prevents heatsink from
exceeding 100°C)
IC8, V23, V43
TX_RX
120 mV p–p Tx
(ensure that the
earth lead from
the CRO probe
is short)
Input/output for RF/IF &
Synthesiser PCB
VC
ALC (output PA collector
voltage)
+2.2 V DC
Manpack Transceiver 2110 series Repair Guide
Source
A rail after F1–F2
39
Functional description of PCBs
Audio & Control PCB
The Audio & Control PCB performs the following functions:
•
provides ADC and DAC conversion for both the Tx and Rx audio path via the codec
(IC302)
•
compresses the digitised microphone Tx audio and reduces noise on the digitised Rx
audio via the DSP (IC202)
•
controls the output level of the Tx and Rx audio
•
voice mutes the Rx audio path (IC109, IC110, IC111, IC112, IC113)
•
provides power on/off function
•
stores the firmware for the transceiver
•
stores the unique transceiver profile programmed by NSP
•
stores real-time data such as transceiver addresses, signal strength and other
parameters for ALE
•
regulates the battery voltage down to +5 V DC, +3.3 V DC and +1.8 V DC
•
connects to the optional voice encryptor module
•
provides battery-backed real time clock
The Audio & Control PCB contains:
40
•
a codec, ADC (IC302)
•
a DSP (IC202)
•
a master PIC (IC104)
•
a CPLD (IC301)
•
an SRAM (IC205, IC206)
•
a code flash (IC203, 204)
•
a data flash (IC207)
•
a real-time clock (IC103)
•
a mute-detection circuit (IC109, IC110, IC111, IC112, IC113)
•
several voltage regulators (IC105, 106, 108)
•
a battery (G101)
•
two crystals (Z101, Z201)
For details on the Audio & Control PCB,
Codan part number
See...
08-06128-001
Table 10 on page 41 and
Figure 13 on page 32
Manpack Transceiver 2110 series Repair Guide
Functional description of PCBs
08-06128-001
CAUTION
If this PCB is replaced, ensure that:
• IC104 and IC301 have the same (or later) firmware version as the
original
• the replacement PCB has the same (or later) PCB version as the
original, that is 07-02028-vv
When ordering a replacement PCB, use the information in the listed spares drawing to
select the correct assembly (see page 25, Interconnection diagrams and listed spares
drawings).
NOTE
All input signals for measuring Tx voltages are –10 dBv two-tone signals
from the 0208 test set (or equivalent), unless stated otherwise. This signal
level provides maximum ALC and therefore maximum output power for
taking the measurement.
NOTE
All input signals for measuring Rx voltages are –10 dBm from the RF
signal generator at ±1 kHz from SCF.
Table 10:
Test points for the Audio & Control PCB (08-06128-001)
Test point
Correct signal
Explanation
53
–
Not used
54
–
Not used
97
Source
Not used
+10V
+10 V DC
+10 V regulated supply
PA & Filter PCB
+1V8
+1.8 V DC
+1.8 V regulated supply
IC106
+3V3
+3.3 V DC
+3.3 V regulated supply
IC106
+5V
+5 V DC
+5 V regulated supply
IC105
+5VA
+5 V DC
+5 V regulated supply to
encryptor
V105
A
+12 to 13.2 V DC
Switched, unregulated battery
supply
PA & Filter PCB
AUDIO_IN–
170 mV p–p, single tone
Pre-amplified Tx audio from
the microphone prior to
compression
Front Panel PCB
Rx audio for the earphone,
internal and external speaker
after processing
IC302
AUDIO_IN+
AUDIO_OUT_
A
AUDIO_OUT_
B
CAL
+5 V DC
Manpack Transceiver 2110 series Repair Guide
IC103
41
Functional description of PCBs
Table 10:
Test points for the Audio & Control PCB (08-06128-001) (cont.)
Test point
Correct signal
Explanation
Source
CODEC_CLK
3.3 V p–p @ 27.648 MHz
Clock signal from CPLD to
CODEC
IC301
DGND
0 V DC
Digital ground
DR
–
Data
IC302
DSP_CLK
3.3 V p–p @ 55.296 MHz
Clock signal from CPLD to
display
IC301
DX
–
Data
IC302
FS
3.3 V p
4 s pulse every 128 s
IC302
GND
0 V DC
Ground
GP_AUDIO_
IN–
GP_AUDIO_
IN+
GP_AUDIO_
OUT–
Pre-amplified Tx audio from
the GPIO connector prior to
compression
GPIO connector via
Front Panel PCB
Rx audio for the GPIO
connector after processing
IC302
GP_AUDIO_
OUT+
INT0
–
Data
IC202
INT1
–
Data
IC202
INT2
–
Data
IC202
INT3
–
Data
IC202
MUTE_DET
+3.3 V DC, voice present
0 V DC, no voice
Indicates the state of the voice IC113
mute
PAGE0
–
Data
IC301
PAGE1
–
Data
IC301
PAGE2
–
Data
IC301
PAGE3
–
Data
IC301
PIC_CLK
3.3 V p–p @ 6.912 MHz
Clock signal from CPLD to
PIC
IC301
POWER_
GOOD
+3.3 V DC, good
0 V DC, bad
Indicates state of 3.3 V and
1.8 V regulator
IC106
R/-W
–
Data
IC301
RESET
+3.3 V DC
Master reset line
IC104
RX_AUDIO
1 V p–p
Rx audio
RF/IF &
Synthesiser PCB
42
Manpack Transceiver 2110 series Repair Guide
Functional description of PCBs
Table 10:
Test points for the Audio & Control PCB (08-06128-001) (cont.)
Test point
Correct signal
Explanation
Source
SCL
–
Data
IC103
SCLK
3.3 V p–p, 250 kHz square
wave
Synchronous clock for PIC
IC302
SDA
–
Data (serial data for PIC)
IC103
SHZ
–
Data
IC301
TX_AUDIO
1 V p–p
Tx audio
Front Panel PCB
WDOG_
CLKIN
3.3 V p–p @ 14 Hz
Clock signal from CPLD to
CPLD
IC301
X1
–
Not used
Manpack Transceiver 2110 series Repair Guide
43
Functional description of PCBs
Antenna Tuner PCB
The Antenna Tuner PCB performs the following functions:
•
detects VSWR
•
detects phases
•
provides scanning amplification of Rx signal
•
matches the antenna
•
stores the last-tune settings in memory
•
microcontrols tuning
The Antenna Tuner PCB contains:
•
a PIC microcontroller (IC5)
•
an EEPROM (IC7)
•
a load-matching circuit
For details on the Antenna Tuner PCB,
Codan part number
See...
08-06063-001
Table 11 on page 45 and
Figure 14 on page 32
08-06063-001
CAUTION
If this PCB is replaced, ensure that IC5 has the same (or later) firmware
version as the original.
When ordering a replacement PCB, use the information in the listed spares drawing to
select the correct assembly (see page 25, Interconnection diagrams and listed spares
drawings).
44
NOTE
All input signals for measuring Tx voltages are –10 dBv two-tone signals
from the 0208 test set (or equivalent), unless stated otherwise. This signal
level provides maximum ALC and therefore maximum output power for
taking the measurement.
NOTE
All input signals for measuring Rx voltages are –10 dBm from the RF
signal generator at ±1 kHz from SCF.
Manpack Transceiver 2110 series Repair Guide
Functional description of PCBs
Table 11:
Test points for the Antenna Tuner PCB (08-06063-001)
Test Point
Correct Signal
Explanation
Source
+3V3
+3.3 V DC
Regulated supply
Audio & Control PCB
+9V
+9 V DC
Regulated supply
IC6
DATA
Serial data for matching
selector
IC5
FWD
Forward power for VSWR
detector
D24/A
BLANK
HOLD
+3.3 V DC
3.3 V DC rail
INT
+3.3 V DC
J1
100 V p–p Tx
RF input from PA
J2
100 V p–p Tx
Output to 50  port
MISO
PHASE
Phase detector output
IC4
REFL
Reflected power for VSWR
detector
D24/B
RESET
Reset for all matching relays
IC5
SCL
Synchronous clock for PIC
IC104 master PIC,
Audio & Control PCB
SCLK
Synchronous clock for
matching
IC5
SDA
Serial data for PIC
SET
Set for all matching relays
IC5
STROBE
Manpack Transceiver 2110 series Repair Guide
45
Functional description of PCBs
Front Panel Assembly
The Front Panel Assembly consists of the Front Panel PCB and associated connectors,
the Keypad PCB and key membrane, the audio speaker, and the GPS equipment (if
fitted).
This assembly performs the following functions:
•
arranges the key inputs into a signal matrix connected via P1 to the Front Panel PCB
•
provides infrared transmission/reception connected via P1 to/from the Front
Panel PCB
•
illuminates the front panel via P1 on the Front Panel PCB
•
provides audio output from the Front Panel PCB
•
contains the connectors that direct the inputs and outputs from the GPIO and handset
connectors to/from the Front Panel PCB via a flexible ribbon cable
•
contains the 50  RF connector, which connects via a coaxial cable to the RF/IF &
Synthesiser PCB
•
contains the antenna stud, which connects via a wire to the Antenna Tuner PCB
•
contains the GPS antenna, if fitted
•
contains the external GPS connector, if fitted
The Front Panel Assembly contains:
46
•
keypad membrane and Keypad PCB
•
infrared transceiver (H13)
•
LED backlighting
•
waterproof audio speaker
•
19-way or 5-way GPIO connector depending on variant
•
6-way handset connector
•
50  BNC connector
•
antenna stud
•
GPS antenna, if fitted
•
external GPS antenna connector, if fitted
Manpack Transceiver 2110 series Repair Guide
Functional description of PCBs
08-06140-001
CAUTION
If this PCB is replaced, ensure that the replacement PCB has the same (or
later) PCB version as the original, that is 07-02032-vv.
There are no dedicated test points for this assembly.
When ordering a replacement PCB, use the information in the listed spares drawing to
select the correct assembly (see page 25, Interconnection diagrams and listed spares
drawings).
Manpack Transceiver 2110 series Repair Guide
47
Functional description of PCBs
Front Panel PCB
The Front Panel PCB performs the following functions:
•
interprets data from the Audio & Control PCB and displays it on the LCD
•
reads keypad entries and sends data to the Audio & Control PCB
•
provides an RS232 port for programming/control
•
amplifies the audio for the internal and external speakers
•
pre-amplifies microphone audio and external audio input
•
provides side-tone for the handset
•
provides contrast adjustment for the LCD
•
backlights the LCD
•
passes the key inputs directly to the Audio & Control PCB
The Front Panel PCB contains:
48
•
a UART to provide GPIO control (IC6)
•
an RS232 driver/receiver (IC11)
•
an octal D-type latch (IC4, IC5) for switching speaker, RS232 functions, speaker
on/off etc
•
audio amplifiers to drive the handset earphone (IC8), internal speaker (IC3) and an
external speaker (IC9)
•
amplifiers to provide pre-amplification of microphone (IC1) and external audio in
(IC19)
•
an amplifier to produce side-tone to the earphone (IC21)
•
an LCD (H2) and drivers (IC16, IC17, IC18)
•
a connection to the Front Panel Assembly
•
a connection to the GPS antenna, if fitted
•
a connection to the external GPS antenna connector, if fitted
•
a LED (H1) for backlighting
For details on the Front Panel PCB,
Codan part number
See...
08-06129-001
Table 12 on page 49
Manpack Transceiver 2110 series Repair Guide
Functional description of PCBs
08-06129-001
CAUTION
If this PCB is replaced, ensure that the replacement PCB has the same (or
later) PCB version as the original, that is 07-02029-vv.
When ordering a replacement PCB, use the information in the listed spares drawing to
select the correct assembly (see page 25, Interconnection diagrams and listed spares
drawings).
NOTE
All input signals for measuring Tx voltages are –10 dBv two-tone signals
from the 0208 test set (or equivalent), unless stated otherwise. This signal
level provides maximum ALC and therefore maximum output power for
taking the measurement.
NOTE
All input signals for measuring Rx voltages are –10 dBm from the RF
signal generator at ±1 kHz from SCF.
Table 12:
Test points for the Front Panel PCB (08-06129-001)
Test Point
Correct Signal
Explanation
Source
+1V65
+1.65 V DC
+1.65 V quiet for op-amp bias IC1
+3V3
+3.3 V DC
Regulated supply
Audio & Control PCB
A
+12 V DC
Switched, unregulated battery
supply
PA & Filter PCB via
Audio & Control PCB
AF_OUT
AF output to internal/external
speaker and earphone on
handset
IC1
AUDIO–
Direct audio to/from handset
connector
AUDIO+
DATA–
–
Not used
DATA+
–
Not used
EARPIECE
Output to earphone on handset IC8
GND
LCD_BIAS
Approx. –6 V DC
Regulated, temperaturecompensated supply for LCD
bias
IC16, IC17, IC18
PTT
+3.3 V DC, unkeyed
0 V DC, keyed
PTT from handset
IC12
SPARE
–
Not used
Manpack Transceiver 2110 series Repair Guide
49
Functional description of PCBs
This page has been left blank intentionally.
50
Manpack Transceiver 2110 series Repair Guide
Repair procedures, tests, and adjustments
This section contains the following topics:
Test equipment (52)
Setup of test equipment for 2110 (54)
Repair procedures and fault diagnosis (55)
Disassembling the transceiver (77)
Adjustments (79)
Re-assembling the transceiver (83)
Checking the battery charging process (86)
Replacing battery cells (90)
Test sheet for the 2110 series Manpack Transceiver (109)
Manpack Transceiver 2110 series Repair Guide
51
Repair procedures, tests, and adjustments
Test equipment
Table 13:
Test equipment
Equipment
Notes
Codan 0208 Test Set, or
a two-tone test set
With associated cables
50 MHz oscilloscope
External trigger capability
10× oscilloscope probe
Input impedance of 10 M and less than 20 pF
50  RF dummy load
100 W RMS
Power meter
Rated at a minimum of 20 W RMS
RF signal generator
400 kHz to 30 MHz
Calibrated output of –130 to 0 dBm (0.2 µV to 10 mV)
Source impedance of 50 
50 MHz frequency counter
Resolution of 1 Hz
Regulated DC power supply, or
13.6 V ±0.2 V at 20 A peak
3020 Transceiver Supply with a current 20 A, mA range
meter
Digital multimeter
10 M input impedance
AC voltmeter
10 mV to 10 V with dB scale
RF spectrum analyser (optional)
Capable of measuring intermodulation
100 Hz resolution
Artificial antenna assembly
Four 220 pF/500 V capacitors (connected in series)
50  coaxial cable with leads and banana/crocodile clips for
connecting capacitors to antenna port/50  dummy load (see
Figure 16)
Banana plug adaptor for the antenna
stud (optional)
RF sampler
50 , 200 W maximum, –40 dB, 200 MHz (see Figure 17)
Table earth mat
Wrist earth strap
PC with serial COM port
PCMCIA-type is acceptable
USB-type is not suitable
Codan NSP software
15-04164-EN
Programming cable (19-way)
For 2110 (08-06237-001)
Programming cable (5-way)
For 2110v (08-06737-001)
DC power cable
For 2110
Codan vacuum test jig
52
Manpack Transceiver 2110 series Repair Guide
Repair procedures, tests, and adjustments
Table 13:
Test equipment (cont.)
Equipment
Notes
Test tank to fit 2110
Temperature-controlled soldering iron
Soldering iron tip, large
Soldering iron tip, flat
Solder, 0.91 mm 60/40 Ersin 362
Driver, hexagonal nut, 13 mm
Driver, hexagonal nut, 8 mm
Driver, hexagonal nut, 5 mm
Screwdriver, hexagonal, 2.5 mm
Screwdriver, slotted, 150 mm × 8 mm
Screwdriver, pozi drive, PZ1 × 80 mm
Screwdriver, torque
Figure 16: Setup for artificial antenna
220 pF, 500 V capacitor (qty 4)
to dummy load
to antenna terminal ( )
to earth terminal ( )
WARNING
High voltages exist on this artificial antenna when it is in use. Capacitors
must be properly insulated from earth.
Figure 17: Setup for RF sampler
3 ´ 3.9 kW, 100 V
3 ´ 3.9 kW, 100 V
100 W
100 W
Manpack Transceiver 2110 series Repair Guide
53
Repair procedures, tests, and adjustments
Setup of test equipment for 2110
Figure 18: Setup for 2110
Artificial
antenna
ly
pp
su
r
we
ter
po 001
tesdan)
V
4
12 34
um o
to -06
cu C
va er to
08
f
(re
Manpack
transceiver
only required
for some tests
RF sampler
08-06304-001
coaxial cable
Dummy load
only required
for some tests
Spectrum analyser
(optional)
0208 Test Set
AC voltmeter
Receive audio
(front panel)
CRO
Audio output
(test only)
Power meter
Frequency counter
Dummy load
13.6 V power supply
WARNING
Ensure that polarity of this cable
is correct before applying power
54
RF signal generator
Manpack Transceiver 2110 series Repair Guide
Repair procedures, tests, and adjustments
Repair procedures and fault diagnosis
NOTE
The fault diagnosis and repair procedures assume that the transceiver has
no software or hardware options installed. See page 115, Options to
identify any specific testing for options.
General
The information in this section should be read in conjunction with the appropriate
flowchart. See below to determine which flowchart you should view.
NOTE
All fault diagnosis should begin with the Repair flowchart (see
Figure 29 on page 95). Check voltages on boards as required.
NOTE
All measurements for output power are in PEP.
You should not disassemble the 2110 until the preliminary checks in the Repair flowchart
are completed. If the Repair flowchart refers you to any of the other flowcharts, you
should disassemble the transceiver only when this is indicated in the process.
WARNING
When taking measurements, keep the earth lead on the probe as short as
possible.
Flowchart
See...
Repair flowchart
Figure 29 on page 95
Disassembly flowchart
Figure 30 on page 97
Power On fault diagnosis flowchart
Figure 31 on page 99
Receive fault diagnosis flowchart 1
Figure 32 on page 101
Receive fault diagnosis flowchart 2
Figure 33 on page 103
Transmit fault diagnosis flowchart 1
Figure 34 on page 105
Transmit fault diagnosis flowchart 2
Figure 35 on page 107
Manpack Transceiver 2110 series Repair Guide
55
Repair procedures, tests, and adjustments
Setting up the test equipment
To set up the test equipment for the operational tests:
1
Connect the test equipment (see Figure 18 on page 54) and use the settings provided
in Table 14.
NOTE
Table 14:
Do not connect the transceiver.
Settings for test equipment
Item
Setting
Power supply
13.6 V DC
AC voltmeter
Suit audio level
Frequency counter
10 samples/second
If accuracy greater than ±20 Hz is required, connect the counter
to a traceable reference
0208 Test Set
Centre position (two tones)
Output level:
(left knob)
–20 dBv
Output level:
(right knob)
–50 dBv
Speaker/Load:
Speaker
Noise:
Up position (noise is off)
PTT:
Up position (PTT is off)
Power meter
 25 W PEP, 2 to 30 MHz
Spectrum analyser
Span:
20 kHz
Resolution
bandwidth:
100 Hz
Output:
–121 dBm
RF:
Off
Modulation:
Off
RF signal generator
CRO
1
56
Balance:
5 V/div
0.1 s/div
Connect the transceiver to the test equipment.
Manpack Transceiver 2110 series Repair Guide
Repair procedures, tests, and adjustments
Setting the balance on the 0208
To set the balance on the 0208:
1
1
Set up the equipment (see page 56, Setting up the test equipment).
1
1
1
1
Select a channel on the transceiver to test.
1
1
Adjust the oscilloscope to view the RF envelope.
Select the channel on the oscilloscope to which the CRO output of the 0208 is
connected.
Ensure both output level controls on the 0208 are set to the minimum level.
Switch on PTT on the 0208.
Adjust the output level of the 0208 until the RF output power of the transceiver
reaches a maximum (approximately –23 dBv on the 0208).
Adjust the balance control on the 0208 for zero crossover (balanced) on the
oscilloscope.
Figure 19: Balance control on the 0208
Unbalanced
1
Balanced (zero crossover)
Switch off PTT on the 0208.
Manpack Transceiver 2110 series Repair Guide
57
Repair procedures, tests, and adjustments
Mechanical inspection
Inspecting the transceiver for damage
To inspect the transceiver unit and battery pack:
1
1
58
Check for:
•
physical damage (that is, crushed and/or distorted cables, cracked case)
•
signs of water ingress (vapour on inside of screen)
•
corrosion
Check that:
•
the connectors are clear of foreign material
•
the connectors are free from corrosion
•
the pins on all connectors are straight and not distorted
1
Record your results and actions (see page 109, Test sheet for the 2110 series
Manpack Transceiver).
1
Return to the Repair flowchart (see Figure 29 on page 95).
Manpack Transceiver 2110 series Repair Guide
Repair procedures, tests, and adjustments
Operational tests
Performing the Power On test
To perform the Power On test:
1
1
Connect the battery.
Press
Pass
1
1
1
1
1
1
Hold
on the front panel to switch on the transceiver.
Front panel screen displays the Codan logo, then the home screen
(typically the channel screen).
on the front panel for 2 seconds to switch off the transceiver.
Disconnect the battery from the transceiver.
Connect the power supply to the connector at the base of the transceiver unit.
Press
Tap
on the front panel to switch on the transceiver.
on the front panel until the backlight is switched off.
Measure the current at the power supply.
Pass
Current drawn is < 220 mA.
1
Record your results and actions (see page 109, Test sheet for the 2110 series
Manpack Transceiver).
1
Return to the Repair flowchart (see Figure 29 on page 95).
Manpack Transceiver 2110 series Repair Guide
59
Repair procedures, tests, and adjustments
Examining the profile in the transceiver
Certain frequencies and settings are required within the transceiver so that measurements
can be taken across a range of operating conditions.
NOTE
A standard test profile may be created using NSP. It should contain
suitable frequencies and hot keys to access entries in the Control List,
for example, Cfg RF Pre-Amp.
NOTE
You must log in as administrator to access entries in the Control List
for which you want to create hot keys.
To set up a profile that is suitable for performing all of the tests:
1
Load and save the existing profile from the transceiver.
This profile is programmed back into the transceiver at the end of
repair and testing.
NOTE
1
Create a profile for the transceiver that contain frequencies from each of these
bands:
•
1600 to 2399.9 kHz (Band 1)
•
2400 to 3699.9 kHz (Band 2)
•
3700 to 5599.9 kHz (Band 3)
•
5600 to 8499.9 kHz (Band 4)
•
8500 to 12999.9 kHz (Band 5)
•
13000 to 19699.9 kHz (Band 6)
•
19700 to 30000.0 kHz (Band 7)
The frequencies may use USB or LSB. If possible, use a frequency
near the centre of each band.
NOTE
1
Set up the test profile with the settings listed in Table 15.
Table 15:
Default settings for the transceiver during testing
Item
Location
Setting
Address
Control List
Leave blank, or set within an address range
that is not used in your HF communication
network
Auto Resume Mode
Control List
Off
Cfg Auto Tune Mode Control List
ATU/50 Ohm/Codan (antenna selection
icon Auto is displayed on screen)
Cfg Power Preference Front panel (Tx PWR key)
Control List
High (Hi is displayed on screen)
60
Manpack Transceiver 2110 series Repair Guide
Repair procedures, tests, and adjustments
Table 15:
Default settings for the transceiver during testing (cont.)
Item
Location
Setting
Cfg RF Pre-Amp
Control List
On
Cfg Speaker External Control List
Enabled
Cfg Speaker Internal
Front panel (MUTE key)
Control List
Disabled (hold MUTE)
Easitalk®
Front panel (EASITALK key)
Control List
Off
Key Beep
Control List
Off
Mute
Front panel (MUTE key)
Control List
Off (S or V is not reverse highlighted on
screen)
Screen Brightness
Front panel ( key to toggle
default/off, or + 0 to go to
setting in Control List)
Dark
1
Use NSP to program the test profile into the transceiver.
NOTE
You can also make changes directly to the profile in the transceiver
using the front panel.
1
Record the name of the test profile that you have programmed into the transceiver
(see page 109, Test sheet for the 2110 series Manpack Transceiver).
1
Return to the Repair flowchart (see Figure 29 on page 95).
Manpack Transceiver 2110 series Repair Guide
61
Repair procedures, tests, and adjustments
Performing the Front Panel test
To perform the Front Panel test:
1
Hold down
and press #.
The display prompts you to press a key.
1
1
Press each key on the keypad one at a time, except
Pass
The key name is displayed on the screen as each key is pressed.
Pass
After one second, the front panel test screen flashes at 2 Hz to ensure
all pixels are functional.
Tap
several times to check that the backlight operates correctly.
NOTE
1
1
.
Switch off the backlight when you have finished testing its operation.
Check that mute is switched off (S or V is not highlighted in the display).
Hold MUTE to switch on the internal speaker, then listen for noise.
NOTE
Switch off the internal speaker when you have finished testing its
operation.
1
Record your results and actions (see page 109, Test sheet for the 2110 series
Manpack Transceiver).
1
1
Press
to exit the Front Panel test.
Return to the Repair flowchart (see Figure 29 on page 95).
Checking basic operation
To check basic operation:
1
1
Press
to see the home screen.
Press SCAN to toggle scan on and off.
NOTE
62
If the channels have not been added to a network, or no networks are
set to be scanned, an error message appears.
1
1
1
Use
1
Return to the Repair flowchart (see Figure 29 on page 95).
or
to change channels.
Press CALL to go to the first call screen.
Record your results and actions (see page 109, Test sheet for the 2110 series
Manpack Transceiver).
Manpack Transceiver 2110 series Repair Guide
Repair procedures, tests, and adjustments
Receive tests
Performing the Basic Receive test
To test if the transceiver can receive:
1
1
1
Set up the equipment (see page 56, Setting up the test equipment).
1
1
1
1
Set the RF output level of the RF signal generator to –20 dBm.
Select a channel to test.
Set the RF signal generator to 1.0 kHz above the SCF of the selected USB channel
or 1.0 kHz below the SCF of the selected LSB channel.
Switch on the RF output from the RF signal generator.
Switch the 0208 speaker to Load.
Adjust the volume via the front panel to full volume.
Pass
A 1 kHz tone is audible from the 0208, –6 dB at full volume.
1
Record your results and actions (see page 109, Test sheet for the 2110 series
Manpack Transceiver).
1
1
1
Switch off the RF output from the RF signal generator.
Switch the 0208 speaker to Speaker.
Return to the Repair flowchart (see Figure 29 on page 95).
Performing the Antenna Tuner test (receive)
To test the antenna tuner in receive:
1
1
Set up the equipment (see page 56, Setting up the test equipment).
1
1
1
Set the Cfg Auto Tune Mode to ATU.
1
1
Switch the 0208 speaker to Load.
Connect the signal generator to the antenna stud on the front panel of the transceiver
using a BNC-to-banana plug/clip adaptor and the screw-on adaptor.
Select a channel in Band 1 (see page 60, Examining the profile in the transceiver).
Set the RF signal generator to 1.0 kHz above the SCF of the selected USB channel
or 1.0 kHz below the SCF of the selected LSB channel.
Adjust the volume via the front panel to full volume.
Pass
A reading on the AC voltmeter that is approximately –20 dBm.
1
Record your results and actions (see page 109, Test sheet for the 2110 series
Manpack Transceiver).
1
Switch off the RF output from the RF signal generator.
Manpack Transceiver 2110 series Repair Guide
63
Repair procedures, tests, and adjustments
1
1
1
1
Switch the 0208 speaker to Speaker.
Return the antenna to the 50  connector ( ).
Return the Cfg Auto Tune Mode to ATU/50 Ohm/Codan.
Return to the Repair flowchart (see Figure 29 on page 95).
Performing the Sensitivity test
To test the sensitivity of the transceiver to received signals:
1
1
Set up the equipment (see page 56, Setting up the test equipment).
1
1
Adjust the volume via the front panel to full volume.
1
1
Switch off the RF output from the RF signal generator.
Select a channel to test, preferably near the centre of one of the designated bands
(see page 60, Examining the profile in the transceiver).
Set the RF signal generator to 1.0 kHz above the SCF of the selected USB channel
or 1.0 kHz below the SCF of the selected LSB channel.
Set the 0 dB reference on the AC voltmeter to the level of the background noise
(approximately –28 dBm).
NOTE
1
1
Set the RF output level of the RF signal generator to –120 dBm.
Switch on the RF output from the RF signal generator.
Pass
A reading on the AC voltmeter that is an increase of > 10 dB from
the 0 dBm reference point.
1
Record your results and actions (see page 109, Test sheet for the 2110 series
Manpack Transceiver).
1
1
Switch off the RF pre-amp in the transceiver.
1
1
Repeat the test, this time setting the 0 dB reference on the AC voltmeter to the level
of the background noise (approximately –31 dBm).
Set the RF output level of the RF signal generator to –114 dBm.
Switch on the RF output from the RF signal generator.
Pass
64
Meter damping may be required in noisy environments.
A reading on the AC voltmeter that is an increase of > 10 dB from
the 0 dBm reference point.
1
Record your results and actions (see page 109, Test sheet for the 2110 series
Manpack Transceiver).
1
1
1
Switch off the RF output from the RF signal generator.
Switch on the RF pre-amp in the transceiver.
Return to the Repair flowchart (see Figure 29 on page 95).
Manpack Transceiver 2110 series Repair Guide
Repair procedures, tests, and adjustments
Performing the AGC test
To test the AGC of the transceiver:
1
1
1
Set up the equipment (see page 56, Setting up the test equipment).
1
1
1
Set the RF output level of the RF signal generator to –13 dBm.
1
Reduce the RF output level of the RF signal generator until the reading on the AC
voltmeter reduces by 6 dB.
Select a channel to test.
Set the RF signal generator to 1.0 kHz above the SCF of the selected USB channel
or 1.0 kHz below the SCF of the selected LSB channel.
Adjust the volume via the front panel so the tone is clearly audible.
Set the 0 dB reference on the AC voltmeter to the level of the tone (approximately
–5 dBm at full volume).
Pass
An RF output level from the RF signal generator that is < –106 dBm
(RF pre-amp on).
1
Record your results and actions (see page 109, Test sheet for the 2110 series
Manpack Transceiver).
1
1
Switch off the RF output from the RF signal generator.
Return to the Repair flowchart (see Figure 29 on page 95).
Performing the Audio Output test
To test the audio output from the transceiver:
1
1
1
Set up the equipment (see page 56, Setting up the test equipment).
Replace the AC voltmeter with an oscilloscope.
Adjust the oscilloscope to view a 1 kHz tone at 1 V p–p.
NOTE
This is typically 0.2 V/div, sweep 0.5 s/div.
1
1
Select a channel to test.
1
1
1
Set the RF output level of the RF signal generator to –60 dBm.
Set the RF signal generator to 1.0 kHz above the SCF of the selected USB channel
or 1.0 kHz below the SCF of the selected LSB channel.
Switch on the RF output from the RF signal generator.
Switch the 0208 speaker to Load.
Manpack Transceiver 2110 series Repair Guide
65
Repair procedures, tests, and adjustments
1
While viewing the tone on the oscilloscope, use the volume control on the front
panel to increase the audio level to full volume.
Pass
NOTE
A waveform that does not clip, and reaches a maximum of
1.0 V p–p.
The receive audio output from the 0208 is half that of the speaker on
the 2110, that is, the audio output from the 2110 should reach
approximately 2 V p–p at full volume.
1
Record your results and actions (see page 109, Test sheet for the 2110 series
Manpack Transceiver).
1
1
1
1
Switch off the RF output from the RF signal generator.
Switch the 0208 speaker to Speaker.
Replace the oscilloscope with an AC voltmeter.
Return to the Repair flowchart (see Figure 29 on page 95).
Performing the Selectivity test
To test the selectivity of the transceiver:
1
1
Set up the equipment (see page 56, Setting up the test equipment).
1
Set the RF signal generator to 1.0 kHz above the SCF of the selected USB channel
or 1.0 kHz below the SCF of the selected LSB channel.
Select a channel to test, preferably near the centre of one of the designated bands
(see page 60, Examining the profile in the transceiver).
NOTE
1
1
1
1
Set the RF output level of the RF signal generator to –120 dBm.
1
Set the RF signal generator to 1.0 kHz below the SCF of the selected USB channel
or 1.0 kHz above the SCF of the selected LSB channel.
1
Increase the RF output level of the RF signal generator to –55 dBm.
Switch on the RF output from the RF signal generator.
Adjust the volume via the front panel to full volume.
Set the 0 dB reference on the AC voltmeter to the level of the tone (approximately
–16 dBm).
Pass
1
66
The setting varies slightly depending on the selected channel with
respect to its positioning along the filter band and the noise from the
RF signal generator.
A reading on the AC voltmeter that is < 0 dB.
Record your results and actions (see page 109, Test sheet for the 2110 series
Manpack Transceiver).
Manpack Transceiver 2110 series Repair Guide
Repair procedures, tests, and adjustments
1
Set the RF signal generator to 4.0 kHz above the SCF of the selected USB channel
or 4.0 kHz below the SCF of the selected LSB channel.
Pass
A reading on the AC voltmeter that is < 0 dB.
1
Record your results and actions (see page 109, Test sheet for the 2110 series
Manpack Transceiver).
1
1
Switch off the RF output from the RF signal generator.
Return to the Repair flowchart (see Figure 29 on page 95).
Performing the Noise Limiter test
To test the noise limiter circuit in the transceiver:
1
1
1
Set up the equipment (see page 56, Setting up the test equipment).
1
1
1
1
Set the RF output level of the RF signal generator to –115 dBm.
Select a channel to test.
Set the RF signal generator to 1.0 kHz above the SCF of the selected USB channel
or 1.0 kHz below the SCF of the selected LSB channel.
Switch on the RF output from the RF signal generator.
Adjust the volume via the front panel so the tone is clearly audible.
Switch on the noise on the 0208.
Pass
Faint 1 kHz tone with buzzing is audible from the 0208 speaker.
1
Record your results and actions (see page 109, Test sheet for the 2110 series
Manpack Transceiver).
1
1
1
Switch off the RF output from the RF signal generator.
Switch off the noise on the 0208.
Return to the Repair flowchart (see Figure 29 on page 95).
Manpack Transceiver 2110 series Repair Guide
67
Repair procedures, tests, and adjustments
Transmit tests
Performing the Basic Transmit test
To test if the transceiver can transmit:
1
1
1
Set up the equipment (see page 56, Setting up the test equipment).
Select a frequency between 4 and 6 MHz.
Hold down PTT on the handset, then whistle into the microphone on the handset.
Pass
A reading on the RF power meter that is approximately 10 to 25 W
PEP.
The current drawn on any channel should be < 5 A.
NOTE
1
1
1
Equivalent readings for power meters that do not have PEP and dB
scales are listed in Table 16 on page 71.
Release PTT on the handset.
Press Tx PWR until Lo is selected.
Hold down PTT on the handset, then whistle into the microphone on the handset.
Pass
A reading on the RF power meter that is approximately 5 W PEP.
The current drawn on any channel should be < 2 A.
68
1
1
Release PTT on the handset.
1
1
Press Tx PWR until Hi is selected.
Record your results and actions (see page 109, Test sheet for the 2110 series
Manpack Transceiver).
Return to the Repair flowchart (see Figure 29 on page 95).
Manpack Transceiver 2110 series Repair Guide
Repair procedures, tests, and adjustments
Performing the Antenna Tuner test (transmit)
To test the antenna tuner in transmit:
1
1
1
1
Set up the equipment (see page 56, Setting up the test equipment).
Connect the artificial antenna to the 2110 (see Figure 18 on page 54).
Set the Cfg Auto Tune Mode to ATU.
Select a channel in Band 1 (see page 60, Examining the profile in the transceiver).
NOTE
1
1
Use the same channel as used in the receive Antenna Tuner test (see
page 63, Performing the Antenna Tuner test (receive)).
Press TUNE, then press PTT to start the tuning process.
View the SWR on the tuning screen.
Pass
The SWR starts at a high value and should reduce to < 2.
The power to load must be approximately 25 W PEP.
1
1
Select a channel in the next band, then repeat the test.
1
Disconnect the artificial antenna and reconnect the dummy load to the 50 
connector.
1
1
Return the Cfg Auto Tune Mode to ATU/50 Ohm/Codan.
Record your results and actions (see page 109, Test sheet for the 2110 series
Manpack Transceiver).
Return to the Repair flowchart (see Figure 29 on page 95).
Performing the Frequency test
NOTE
Wait for at least five minutes after switching on the transceiver before
checking the frequency.
To test the frequency of the transceiver:
1
1
1
1
Set up the equipment (see page 56, Setting up the test equipment).
Select a channel with a high frequency (ideally 30 MHz).
Press TUNE on the front panel.
Hold down PTT on the handset, then read the carrier frequency from the frequency
counter.
Pass
1
A reading on the frequency counter that is within 20 Hz of the
channel frequency.
Release PTT on the handset.
Manpack Transceiver 2110 series Repair Guide
69
Repair procedures, tests, and adjustments
1
Record your results and actions (see page 109, Test sheet for the 2110 series
Manpack Transceiver).
1
Return to the Repair flowchart (see Figure 29 on page 95).
Performing the ALC test
To test the ALC of the transceiver:
1
1
1
1
1
1
Set up the equipment (see page 56, Setting up the test equipment).
Select a channel to test.
Set the fine output level adjustment on the 0208 to minimum.
Switch on PTT on the 0208.
Monitor the output power of the RF envelope on the oscilloscope.
Slowly increase the audio output level on the 0208 until the RF output power of the
transceiver stops increasing.
This is the ALC threshold.
1
Record the PEP and the output level (see page 109, Test sheet for the 2110 series
Manpack Transceiver), then increase the audio output level on the 0208 by 10 dB.
Pass
NOTE
1
A display on the power meter that shows an increase in RF output
power that is < 0.5 dB (approximately 10 W).
Equivalent readings for power meters without PEP and dB scales are
listed in Table 16 on page 71.
Record your results and actions (see page 109, Test sheet for the 2110 series
Manpack Transceiver).
To protect the ALC:
1
Reduce the output level on the 0208 until the RF output power of the transceiver is
3 dB below the ALC threshold.
1
1
1
1
Switch off PTT on the 0208.
Record the DC supply current from the power supply.
Disconnect the coaxial cable from the 50  connector ( ).
Switch on PTT on the 0208.
Pass
70
A reading on the power supply that shows a reduction in the DC
supply current of approximately 50% from the reading taken with
the load connected.
1
Record your results and actions (see page 109, Test sheet for the 2110 series
Manpack Transceiver).
1
Switch off PTT on the 0208.
Manpack Transceiver 2110 series Repair Guide
Repair procedures, tests, and adjustments
1
1
Reconnect the coaxial cable to the 50  connector ( ).
Return to the Repair flowchart (see Figure 29 on page 95).
Performing the RF Output Power test
To test the RF output power of the transceiver:
1
1
1
1
Set up the equipment (see page 56, Setting up the test equipment).
Select any frequency between 4 and 6 MHz.
Switch on PTT on the 0208.
Adjust the output level of the 0208 until the RF output power of the transceiver stops
increasing, then increase the output level of the 0208 by 10 dB.
Pass
A reading on the RF power meter that is between 20 and 25 W PEP.
NOTE
Equivalent readings for power meters without PEP and dB scales are
listed in Table 16.
1
Record your results and actions (see page 109, Test sheet for the 2110 series
Manpack Transceiver).
1
For each band, adjust the output level of the 0208 until the RF output power of the
transceiver stops increasing, then increase the output level of the 0208 by 10 dB.
Pass
A reading on the RF power meter that is between 20 and 25 W PEP
for each band.
Equivalent readings for power meters without PEP and dB scales are
listed in Table 16.
NOTE
Table 16:
20/25 W output power scale
PEP
(W)
PEP
(dBm)
Variation from 25 W
(dB)
RMS responding
meter
(W)
Average responding
meter (Bird 43)
(W)
V p–p
20
43
–1.0
10
8
90
25
44
0.0
13
10
100
1
Record your results and actions (see page 109, Test sheet for the 2110 series
Manpack Transceiver).
NOTE
1
1
The V p–p reading is directly across the 50  load. The 0208 Test Set
gives a sampled output.
Switch off PTT on the 0208.
Return to the Repair flowchart (see Figure 29 on page 95).
Manpack Transceiver 2110 series Repair Guide
71
Repair procedures, tests, and adjustments
Performing the Low Power test
To test the low output power of the transceiver:
1
1
1
1
1
Set up the equipment (see page 56, Setting up the test equipment).
Press Tx PWR until Lo is selected.
Select any frequency between 4 and 6 MHz.
Switch on PTT on the 0208.
Adjust the output level of the 0208 until the RF output power of the transceiver stops
increasing, then increase the output level of the 0208 by 10 dB.
Pass
A reading on the RF power meter that is between 4 and 5 W PEP.
NOTE
Equivalent readings for power meters without PEP and dB scales are
listed in Table 17.
Table 17:
PEP
(W)
PEP
(dBm)
Variation from 5 W
(dB)
RMS responding
meter
(W)
Average responding
meter (Bird 43)
(W)
V p–p
4
36.0
–1.0
2
1.6
40
5
37
0.0
2.5
2
45
1
Record your results and actions (see page 109, Test sheet for the 2110 series
Manpack Transceiver).
1
For each band, adjust the output level of the 0208 until the RF output power of the
transceiver stops increasing, then increase the output level of the 0208 by 10 dB.
Pass
NOTE
1
1
1
1
A reading on the RF power meter that is between 4 and 5 W PEP for
each band.
Equivalent readings for power meters without PEP and dB scales are
listed in Table 17.
Record your results and actions (see page 109, Test sheet for the 2110 series
Manpack Transceiver).
NOTE
72
4/5 W output power scale
The V p–p reading is directly across the 50  load. The 0208 Test Set
gives a sampled output.
Switch off PTT on the 0208.
Press Tx PWR until Hi is selected.
Return to the Repair flowchart (see Figure 29 on page 95).
Manpack Transceiver 2110 series Repair Guide
Repair procedures, tests, and adjustments
Performing the Distortion test using an oscilloscope
To test distortion and spurious signals using an oscilloscope:
1
1
1
1
Set up the equipment (see page 56, Setting up the test equipment).
1
Analyse the RF envelope using Figure 20, Figure 21, Figure 22, and Figure 23.
Select a channel to test.
Switch on PTT on the 0208.
Adjust the output level of the 0208 until the RF output power of the transceiver stops
increasing, then increase the output level of the 0208 by 10 dB.
Pass
The RF waveform envelope is acceptable.
NOTE
If the waveform is acceptable, there is no need to perform the
Intermodulation test.
Figure 20: Acceptable two-tone RF envelope
Figure 21: Defective two-tone RF envelope (typical overbias of PA)
Manpack Transceiver 2110 series Repair Guide
73
Repair procedures, tests, and adjustments
Figure 22: Defective two-tone RF envelope (typical underbias of PA)
Figure 23: Defective two-tone RF envelope (typical spurious-related problems)
74
1
Record your results and actions (see page 109, Test sheet for the 2110 series
Manpack Transceiver).
1
1
Switch off PTT on the 0208.
Return to the Repair flowchart (see Figure 29 on page 95).
Manpack Transceiver 2110 series Repair Guide
Repair procedures, tests, and adjustments
Performing the Intermodulation test using a spectrum analyser (optional)
To test the intermodulation products using a spectrum analyser:
1
1
Set up the equipment (see page 56, Setting up the test equipment).
1
1
Select any channel in Band 1.
Connect the spectrum analyser via a high input impedance probe to the 50 
connector ( ) with the dummy load still connected.
Set up the spectrum analyser as follows:
Centre frequency
Carrier frequency
Frequency span
20 kHz
Video bandwidth
300 Hz
Trigger
Continuous sweep
Vertical scale
10 dB per division
Reference level
Adjust once the transceiver is transmitting at full power
1
1
Switch on PTT on the 0208.
1
Analyse the display on the spectrum analyser using Figure 24.
Adjust the output level of the 0208 until the RF output power of the transceiver stops
increasing, then increase the output level of the 0208 by 10 dB.
Pass
Intermodulation products are 26 dB down.
Figure 24: Intermodulation measurements using a spectrum analyser
IMD measurement
(below each tone)
1
Record your results and actions (see page 109, Test sheet for the 2110 series
Manpack Transceiver).
Manpack Transceiver 2110 series Repair Guide
75
Repair procedures, tests, and adjustments
1
For each band, adjust the output level of the 0208 until the RF output power of the
transceiver stops increasing, then increase the output level of the 0208 by 10 dB.
1
Analyse the display on the spectrum analyser using Figure 24.
Pass
Intermodulation products are 26 dB down for each band.
1
Record your results and actions (see page 109, Test sheet for the 2110 series
Manpack Transceiver).
1
1
Switch off PTT on the 0208.
Return to the Repair flowchart (see Figure 29 on page 95).
To check spurious transmissions and harmonics using a spectrum analyser:
1
1
1
76
Set up the equipment (see page 56, Setting up the test equipment).
Select a channel to test.
Set up the spectrum analyser as follows:
Start frequency
600 kHz
Stop frequency
200 MHz
Video bandwidth
3 kHz
Trigger
Continuous sweep
Vertical scale
10 dB per division
Reference level
Adjust once the transceiver is transmitting at full power
1
1
Switch on PTT on the 0208.
1
Observe the output from the spectrum analyser.
Adjust the output level of the 0208 until the RF output power of the transceiver stops
increasing, then increase the output level of the 0208 by 10 dB.
Pass
Unwanted emissions typically > 60 dB below peak carrier level.
NOTE
If unwanted emissions are < 50 dB below the peak carrier level,
ensure your test set is calibrated before any further analysis of the
transceiver is performed.
1
Record your results and actions (see page 109, Test sheet for the 2110 series
Manpack Transceiver).
1
1
Switch off PTT on the 0208.
Return to the Repair flowchart (see Figure 29 on page 95).
Manpack Transceiver 2110 series Repair Guide
Repair procedures, tests, and adjustments
Disassembling the transceiver
NOTE
Disassembling the transceiver is the reverse of the assembly procedure.
NOTE
Follow the Disassembly flowchart (see Figure 30 on page 97).
To disassemble the transceiver:
1
1
1
1
Disconnect any cables or antennas attached to the front panel.
1
1
1
1
1
Disconnect the battery connector.
Remove the battery pack from the base of the transceiver.
Stand the transceiver on its front panel.
Remove the six screws from the back panel and ease the panel away from the
chassis.
Loosen the labelled screw about 5 mm, then push the screw back into the hole.
Stand the transceiver upright.
Remove the six screws from the front panel.
Locate the open end of the housing over a block of wood that fits within the housing
and is approximately 100 mm high, then push the housing down to expose the
chassis.
Figure 25: Removing the housing from the chassis
push housing
down evenly
over block
Manpack Transceiver 2110 series Repair Guide
77
Repair procedures, tests, and adjustments
WARNING
1
1
Do not use the front panel to pull the chassis out of the housing.
Ensure that:
•
all plugs and sockets are orientated correctly
•
all cables are positioned correctly and clamped where necessary
•
cables are not pinched by shields, or touching any sharp edges
•
all PCBs and mechanical assemblies are fixed securely
NOTE
If any cables, connectors or PCBs appear damaged, replace these
items before proceeding.
NOTE
Ensure all screens are in place to provide shielding.
If you want to access the:
•
Antenna Tuner PCB, remove the ATU screen
•
Audio & Control PCB, remove the CTRL screen
•
RF/IF & Synthesiser PCB, remove the Rx Tx screen
•
PA & Filter PCB, remove the PA screen
NOTE
The name of each PCB function is printed on the screen covering the
board.
To access the Front Panel PCB and Front Panel Assembly:
1
1
Undo the screw on the rear of the antenna stud to disconnect the antenna tuner.
1
Remove the screw and four spacers from the Front Panel PCB, then carefully
separate the connectors holding the PCBs together.
1
If the GPS option is fitted to the Front Panel PCB, disconnect the thin coaxial cable
that passes through to the Front Panel Assembly.
1
If the external GPS antenna connector is fitted, disconnect the thick coaxial cable
that passes through to the Front Panel Assembly.
Remove the four screws at the rear of the Front Panel PCB that hold the chassis to
the front panel.
CAUTION
78
Do not remove the PCB that covers the keymat from the Front Panel
Assembly. This can only be re-sealed in the factory.
Manpack Transceiver 2110 series Repair Guide
Repair procedures, tests, and adjustments
Adjustments
Adjusting frequency
RF/IF & Synthesiser PCB (08-06039-001) (see Figure 11 on page 30)
All the channels are synthesised and locked to the 14.848333 MHz reference crystal
oscillator Z1.
NOTE
Wait for at least five minutes after switching on the transceiver before
adjusting the frequency.
To adjust the frequency:
1
1
1
1
1
Select a channel with a high frequency (ideally 30 MHz).
1
1
Release PTT on the handset.
Press TUNE on the front panel.
Hold down PTT on the handset.
Read the carrier frequency from the frequency counter.
Adjust the reference frequency using trimpot R2 on the REF OSC PCB (located on
the RF/IF & Synthesiser PCB) for an exciter output frequency within 3 Hz of the
SCF.
Return to the Repair flowchart (see Figure 29 on page 95), if required.
Adjusting the PA
NOTE
You may need to program specific channel frequencies into the
transceiver to perform these adjustments.
NOTE
These adjustments assume that the transceiver does not have any
hardware options. See page 115, Options to identify any hardware
options. You should read the information provided with the options and
make adjustments accordingly.
Manpack Transceiver 2110 series Repair Guide
79
Repair procedures, tests, and adjustments
Adjusting the driver bias
PA & Filter PCB (08-06064-001) (see Figure 12 on page 30) and
RF/IF & Synthesiser PCB (08-06039-001) (see Figure 11 on page 30)
To adjust the driver bias:
1
1
Switch off the transceiver.
1
Set a multimeter to the DC low voltage range and connect it between the +12VSW
and DR test points on the PA & Filter PCB.
Disconnect the exciter output from the PA by removing the RF drive between
connector J2 (Tx coaxial) on the PA & Filter PCB and connector J101 on the RF/IF
& Synthesiser PCB (see Figure 11 on page 30).
WARNING
1
1
1
Do not short the multimeter leads to the chassis.
Switch on the transceiver.
Select any transmit channel and hold down PTT for at least 30 seconds.
Check that the voltage measures 160 mV ±10 mV.
If the current is out of the specified limit stated above, change it by adjusting DR
BIAS (R101) (see Figure 12 on page 30).
1
1
Release PTT on the handset.
1
Return to the Repair flowchart (see Figure 29 on page 95), if required.
Switch off the transceiver, disconnect the multimeter, then reconnect the RF drive
between connector J2 on the PA & Filter PCB and connector J101 on the RF/IF &
Synthesiser PCB.
Adjusting the PA bias
PA & Filter PCB (08-06064-001) (see Figure 12 on page 30) and
RF/IF & Synthesiser PCB (08-06039-001) (see Figure 11 on page 30)
To adjust the bias of the PA output transistors:
80
1
1
Switch off the transceiver.
1
De-solder the fuse F1–F2 next to the output transistors on the PA & Filter PCB (this
removes the DC supply to the output transistors V36 and V37) (see Figure 12 on
page 30).
1
Set a multimeter to DC 1 A range and connect it in place of the removed fuse
(positive nearest to transistors).
1
Switch on the transceiver.
Disconnect the exciter output from the PA by removing the RF drive between
connector J2 (Tx coaxial) on the PA & Filter PCB and connector J101 on the RF/IF
& Synthesiser PCB (see Figure 11 on page 30).
Manpack Transceiver 2110 series Repair Guide
Repair procedures, tests, and adjustments
1
1
Select any transmit channel and hold down PTT for at least 30 seconds.
Check that the output current measures 200 mA ±20 mA.
If the current is out of the specified limit stated above, change it by adjusting the
pre-set potentiometer O/P BIAS (R105) (see Figure 12 on page 30).
1
1
Release PTT on the handset.
Switch off the transceiver, disconnect the multimeter, then resolder the fuse F1–F2.
If the fuse is broken, replace it with one strand (0.2 mm TCW) taken from a piece of
7 × 0.2 mm cable. Extend the centre of the wire down from the two stakes to form a
V, ensuring it does not touch the PCB. Solder the wire to the two stakes, making sure
the solder does not run down the strand of wire (see Figure 12 on page 30).
1
Reconnect the RF drive between connector J2 on the PA & Filter PCB and
connector J101 on the RF/IF & Synthesiser PCB.
1
Return to the Repair flowchart (see Figure 29 on page 95), if required.
Adjusting high output power
PA & Filter PCB (08-06064-001) (see Figure 12 on page 30)
NOTE
The output power is factory-set, so it is not likely to be outside the
specified limits. Check that there are no faults with the transmitter circuits
before attempting to adjust the output power.
To adjust the high output power:
1
1
1
Select any frequency between 4 and 6 MHz.
1
Adjust HI PWR (R56) for 25 W PEP (see Figure 12 on page 30).
Switch on PTT on the 0208.
Adjust the output level of the 0208 until the RF output power of the transceiver stops
increasing, then increase the output level of the 0208 by 3 dB.
NOTE
1
Equivalent readings for power meters without PEP and dB scales are
listed in Table 16 on page 71.
Check that the two-tone waveform is clean and undistorted.
If it is not clean and undistorted, further analysis is required.
1
1
Switch off PTT on the 0208.
Return to the Repair flowchart (see Figure 29 on page 95), if required.
Manpack Transceiver 2110 series Repair Guide
81
Repair procedures, tests, and adjustments
Adjusting low output power
PA & Filter PCB (08-06064-001) (see Figure 12 on page 30)
NOTE
Before adjusting the low output power, set the high output power (see
page 81, Adjusting high output power).
To adjust the low output power:
1
1
1
1
Select any frequency between 4 and 6 MHz.
1
1
Adjust LO PWR (R124) for 5 W PEP (see Figure 12 on page 30).
Press Tx PWR until Lo is selected.
Switch on PTT on the 0208.
Adjust the output level of the 0208 until the RF output power of the transceiver stops
increasing, then increase the output level of the 0208 by 3 dB.
Check that the two-tone waveform is clean and undistorted.
If it is not clean and undistorted, further analysis is required.
1
1
1
82
Switch off PTT on the 0208.
Press Tx PWR until Hi is selected.
Return to the Repair flowchart (see Figure 29 on page 95), if required.
Manpack Transceiver 2110 series Repair Guide
Repair procedures, tests, and adjustments
Re-assembling the transceiver
When re-assembling the transceiver you must:
•
check that gaskets are not damaged and that they retain waterproof integrity
•
use original screws or genuine replacements
•
tighten all M3 screws to 0.7 Nm with a torque screwdriver
To re-assemble the Front Panel PCB onto the Front Panel Assembly and onto the chassis:
1
1
Reconnect the speaker to connector P2 on the Front Panel PCB.
1
If the external GPS antenna connector is fitted, align the thick coaxial cable in the
recess in the Front Panel PCB, then connect the cable to J1 on the GPS Receiver
PCB.
1
Carefully align the connector pins on the PCB in the Front Panel Assembly with the
sockets on the Front Panel PCB, then gently push the PCBs together.
1
1
Re-insert the screw and four spacers on the Front Panel PCB.
1
Tighten the screw on the rear of the antenna stud to reconnect the antenna tuner.
If the GPS option is fitted, align the coaxial cable in the recess in the Front
Panel PCB, then connect the cable to P1 on the GPS Receiver PCB.
Place the Front Panel PCB against the chassis, then re-insert the four screws that
hold the chassis to the PCB.
To re-assemble the transceiver:
1
Place any screen covers that have been removed from the PCBs back into their
correct positions.
1
Stand the housing on its bottom end, then slide the transceiver chassis into the
housing.
1
1
1
1
1
1
WARNING
Ensure that the transceiver slides in parallel to the housing.
CAUTION
Apply firm pressure to the front panel to ensure that the o-ring is in
contact with the housing.
Re-insert the six screws into the front panel.
Stand the transceiver on its front panel.
Tighten the screw that required loosening (labelled).
Check the integrity of the sealing gasket, and replace with a new gasket if necessary.
Reconnect the battery connector.
Push the back panel onto the chassis, then re-insert the six screws.
Manpack Transceiver 2110 series Repair Guide
83
Repair procedures, tests, and adjustments
To test the sealing in the transceiver:
WARNING
Do not perform this test in a humid environment as ambient air is sucked
into the transceiver following the test.
WARNING
The pressure must remain within the range –700 to +500 millibars.
1
1
Remove the breather screw from the back panel (see Figure 26).
Connect the vacuum adaptor to the back panel of the transceiver, then tighten with
your fingers.
Figure 26: Setup for vacuum test
vacuum test jig
location of
breather screw
1
1
1
Plug the hose from the vacuum test jig into the vacuum adaptor on the back panel.
1
1
Move the vacuum control valve to the closed position.
Move the vacuum control valve to the open position.
Switch on the vacuum pump, then wait until the gauge reads approximately
–500 millibars.
Switch off the vacuum pump immediately.
The vacuum reading on the gauge should stabilise at approximately –250 millibars.
If the reading is between approximately –250 and –300 millibars, proceed with the
test.
If the reading is between approximately –250 and 0 millibars, repeat the setup steps
above, but allow the vacuum pump to create a vacuum of up to approximately
–700 millibars.
1
1
Record the reading on the gauge.
Wait 5 minutes, then record the reading on the gauge.
Pass
1
1
84
Final reading is within 3 millibars of the original reading.
Unplug the hose from the vacuum adaptor on the back panel.
Unscrew the vacuum adaptor.
Manpack Transceiver 2110 series Repair Guide
Repair procedures, tests, and adjustments
1
1
Wait a minute for the transceiver to return to atmospheric pressure.
1
Connect the battery pack to the base of the transceiver.
Screw the breather screw back into place, then tighten to 0.7 Nm using a torque
screwdriver.
Manpack Transceiver 2110 series Repair Guide
85
Repair procedures, tests, and adjustments
Checking the battery charging process
You may use any of the following chargers to charge the battery:
•
a 3121 AC Battery Charger (1 A), which uses a universal AC mains input of 90 to
264 V AC
•
a 3122 DC Battery Charger (1 A), which may be powered from any 12 to 60 V DC
source (for example, from a 12 V DC outlet in a vehicle, or from a 24 V vehicle
battery)
•
a 3123 Fast AC Battery Charger (3 A), which uses a universal AC mains input of
90 to 264 V AC
•
a solar battery charger and lead (1 A nominal in full sunlight)
•
a hand-powered battery charger (1 A at 60 rpm)
The Codan 3121 AC Battery Charger and 3122 DC Battery Charger are specially
designed for low-noise operation, so receiver performance remains optimal while
charging the battery pack via the front panel.
NOTE
The 3123 Fast AC Battery Charger connects directly to the battery pack
for charging. You cannot use this charger through the 19-way or 5-way
connector on the front panel of the transceiver.
CAUTION
Charging is recommended between 0 and 40°C (104°F). The battery will
not commence charging if the temperature is at or above 40°C (104°F). If
charging is already in progress, and the temperature rises to 50°C (122°F),
charging is stopped automatically.
CAUTION
To prevent damage to the battery, Codan recommends the use of the
Codan battery chargers to charge the battery pack.
Table 18:
Typical charging times for Codan battery packs
Charger type
86
Rating
(A)
3121
1
3122
1
Solar battery charger
1
(nominal in full sun)
Hand-powered battery
charger
1
(@ 60 rpm)
3123
3
Charging time
(h)
7 Ah and
8 Ah
13 Ah
10
16
17 Ah
20
3
5
7
Manpack Transceiver 2110 series Repair Guide
Repair procedures, tests, and adjustments
Figure 27: Typical front panel of a battery charger
3121 AC Battery Charger
OUTPUT
INPUT
Table 19:
Charger
type
LED indications
LED
3121
Status
Meaning
Green, solid
The charger has an appropriate power supply
connected.
Off
The charger does not have an appropriate
power supply connected.
3122
OUTPUT Orange, solid
3123
The charger is charging the battery pack.
Off
The charger has finished charging the battery
pack.
Green, solid
The charger has an appropriate power supply
connected.
Off
The charger does not have an appropriate
power supply connected, or is not functioning
correctly.
OUTPUT Yellow, solid
Yellow, slow
flash
The charger is charging the battery pack.
The charger has finished charging the battery
pack.
Yellow/red,
The battery pack has an overtemperature
alternating flash condition.
Red, double
flash then long
pause
The battery pack has a faulty fuse.
Red, rapid flash The battery pack is unserviceable and cannot
be charged.
Manpack Transceiver 2110 series Repair Guide
87
Repair procedures, tests, and adjustments
Charging a battery
WARNING
The battery pack should be charged with the connector facing upward and
the vents clear of obstructions so that any gas created during the charging
process is released.
CAUTION
Provide clear notification that charging is underway. Ensure there is
adequate ventilation around the battery during charging.
NOTE
If the voltage of the battery is below 10 V, the OUTPUT LED on the
charger flashes orange for a period of time before charging commences.
The LED may also flash during this period.
To charge a battery:
1
Do one of the following:
•
For 2110 Manpack Transceivers with the battery attached to the transceiver, use
cable 08-06215-001 to connect the output of the 3121, 3122, solar or handpowered battery charger to the 19-way connector on the front panel of the
transceiver.
•
For 2110v Manpack Transceivers with the battery attached to the transceiver,
use cable 08-06738-001 to connect the output of the 3121, 3122, solar or handpowered battery charger to the 5-way connector on the front panel of the
transceiver.
NOTE
•
1
The 3123 Fast AC Battery Charger cannot be used to charge a
battery pack via the front panel of the transceiver.
If the battery is detached from the transceiver, use cable 08-06214-001 to
connect the output of any of the Codan battery chargers to the 6-way connector
on the top of the battery pack.
Connect the charger to an appropriate power source.
NOTE
If you are using a solar battery charger, ensure that the panel is
oriented at right angles to the rays of the sun.
NOTE
If you are using a hand-powered battery charger, strap it to a tree, or
attach it to the stand provided.
If the transceiver is operational during charging, the battery status indicator on the
front panel screen shows that the battery pack is charging. When charging is
complete, the battery status indicator is full.
NOTE
88
It takes approximately 16 seconds following appropriate connections
for the 3121, 3122, solar and hand-powered battery chargers to
commence charging the battery pack.
Manpack Transceiver 2110 series Repair Guide
Repair procedures, tests, and adjustments
Requirements for alternative chargers
The Codan battery packs may be charged using alternative supplies, for example, thirdparty solar panels or hand-powered battery chargers. In this situation, the voltage level
must not exceed 15.5 V and the current must be within 1 to 3 A. These chargers must be
connected between pin B (charge in) and pin A (ground) of the connector on the battery
pack.
Notes on charging batteries
A battery requires 3 to 5 discharge/recharge cycles when new before it reaches its full
capacity. In order to increase the battery service life, it is recommended that the battery
is not fully discharged during each cycle. Full discharge should only be carried out
periodically as follows:
Type
Full discharge
NiMH
Two full discharge/recharge cycles every 20 charge cycles
SLA
One full discharge/recharge cycle every 20 charge cycles
LiFePO4
No full discharge required
For the periodic full-discharge cycle, run the battery down to zero capacity using the
transceiver. The transceiver switches off automatically when the battery is fully
discharged.
WARNING
If you are using alternative means to discharge the battery, the battery
voltage must not go below 10 V.
WARNING
An SLA battery must be charged immediately after discharge to prevent
damage to the battery.
The Codan battery packs have in-built monitoring, which is reported in the Battery entry
in the Control List. You should view the Battery Cycle setting for the number of times
the battery has received input current (that is, has been charged).
NOTE
You must log in as administrator to see the Control List.
Manpack Transceiver 2110 series Repair Guide
89
Repair procedures, tests, and adjustments
Replacing battery cells
WARNING
Battery cells are electrically live at all times and must be treated with
extreme caution. They may supply high short-circuit currents even if they
appear to be damaged or inoperable.
Batteries are considered non-serviceable, and if faulty within the warranty period should
be returned via the normal channels to Codan. The instructions below are general.
To replace the battery cells:
1
1
1
Stand the battery pack on its base.
Remove the 10 screws from the lid of the battery pack.
Lift the lid away from the base carefully, taking care with the attached PCB.
WARNING
The PCB must be disconnected from the batteries before replacing
the cells. You must disconnect the PCB in the specific order stated
below.
Figure 28: Connections between the battery cells and the Battery Monitor PCB
rotary switch
3456
BCDE
789A
5-pin sensor connector
F 012
fuse
red wire connector
black wire connector
1
1
90
Disconnect the black wire by easing its connector away from the PCB.
Disconnect the red wire by easing its connector away from the PCB.
Manpack Transceiver 2110 series Repair Guide
Repair procedures, tests, and adjustments
1
1
Disconnect the sensor by easing the large 5-pin connector away from the PCB.
Replace the battery cells with equivalent rechargeable battery cells.
WARNING
The overall amp-hour rating of the battery cells must remain the same
as the original.
1
Combine the battery cells together in the same orientation and with the same
connections as the original battery cells.
1
Remove the resistor and cable assembly from the original battery cells and connect
this into the new arrangement of battery cells in the same position and orientation.
1
1
1
1
1
Place the battery cells into the foam lining inside the battery pack.
1
Rotate the head of the arrow on the rotary switch to one of the following positions:
1
1
1
Reconnect the 5-pin sensor connector.
Reconnect the red wire to the + terminal.
Reconnect the black wire to the – terminal.
Rotate the head of the arrow on the rotary switch to position F to reset the battery
data.
Battery type
Switch position
8 Ah NiMH equivalent
1
13 Ah NiMH equivalent
4
7 Ah SLA equivalent
B
17 Ah LiFePO4 equivalent
F
Check that the gasket is clean, and sitting correctly within its groove.
Gently position the lid onto the battery pack, taking care with the PCB, wiring and
the foam lining.
Secure the lid in place with the 10 screws.
Replacing the fuse in the battery pack
To replace the fuse:
1
1
1
1
Stand the battery pack on its base.
Remove the 10 screws from the lid of the battery pack.
Lift the lid away from the base carefully, taking care with the attached PCB.
Remove the fuse from the PCB (see Figure 28 on page 90 for the location of the
fuse).
Manpack Transceiver 2110 series Repair Guide
91
Repair procedures, tests, and adjustments
1
92
Replace the fuse with one of the following equivalent fuses:
Name
Part number
Bussman
GDB-10A
Littelfuse
216010
Conquer
UBM-10A
1
1
Check that the gasket is clean, and sitting correctly within its groove.
1
Secure the lid in place with the 10 screws.
Gently position the lid onto the battery pack, taking care with the PCB, wiring and
the foam lining.
Manpack Transceiver 2110 series Repair Guide
Repair procedures, tests, and adjustments
Flowcharts
All fault diagnosis should begin with the Repair flowchart (see Figure 29 on page 95).
You should not disassemble the 2110 until the preliminary checks in the Repair flowchart
are completed. If the Repair flowchart refers you to any of the other flowcharts, you
should disassemble the transceiver only when this is indicated in the process.
WARNING
When taking measurements, keep the earth lead to the probe as short as
possible.
Flowchart
See...
Repair flowchart
Figure 29 on page 95
Disassembly flowchart
Figure 30 on page 97
Power On fault diagnosis flowchart
Figure 31 on page 99
Receive fault diagnosis flowchart 1
Figure 32 on page 101
Receive fault diagnosis flowchart 2
Figure 33 on page 103
Transmit fault diagnosis flowchart 1
Figure 34 on page 105
Transmit fault diagnosis flowchart 2
Figure 35 on page 107
Manpack Transceiver 2110 series Repair Guide
93
Repair procedures, tests, and adjustments
This page has been left blank intentionally.
94
Manpack Transceiver 2110 series Repair Guide
Figure 29: Repair flowchart
Repair procedures, tests, and adjustments
Repair flowchart
Mechanical inspection
Receive tests
Selectivity test
ALC test
See page 70
See page 66
Inspect for damage
Basic Receive test
Pass test?
No
RF/IF & Synthesiser PCB
suspected faulty
Pass test?
No
PA & Filter PCB
suspected faulty
See page 63
See page 58
Operational tests
Pass test?
No
Receive fault
diagnosis flowchart
Yes
Yes
Noise Limiter test
RF Output Power and
Low Power tests
See page 67
See page 101
See page 71 and page 72
Yes
Antenna Tuner test
(receive)
Power On test
No
RF/IF & Synthesiser PCB
suspected faulty
Pass tests?
Adjust high and low
power
No
Power On fault
diagnosis flowchart
Pass test?
See page 81
No
Antenna Tuner PCB
suspected faulty
Yes
Yes
Transmit tests
Distortion and
Intermodulation tests
See page 73 and page 75
See page 99
Yes
Yes
Examine profile
Sensitivity test
See page 60
Basic Transmit test
See page 64
Front panel test
Pass test?
Pass tests?
No
Adjust bias
See page 68
No
RF/IF & Synthesiser PCB
suspected faulty
Yes
Pass test?
See page 81
No
See page 62
Pass test?
No
See page 63
See page 59
Pass test?
Pass test?
Transmit fault
diagnosis flowchart
Distortion and
Intermodulation tests
Yes
See page 105
No
Receive fault
diagnosis flowchart
See page 101
Yes
Yes
AGC test
Antenna Tuner test
(transmit)
See page 65
Yes
Yes
Pass tests?
See page 69
Yes
Basic operation
No
Pass test?
No
RF/IF & Synthesiser PCB
suspected faulty
Pass test?
No
Antenna Tuner PCB
suspected faulty
See page 62
Re-assemble transceiver,
if required
PA & Filter PCB
suspected faulty
See page 83
Yes
Yes
Audio Output test
Frequency test
See page 65
Pass test?
Program transceiver with
original profile
See page 69
No
Audio & Control PCB
suspected faulty
Pass test?
No
Adjust frequency
Test completed
See page 79
Manpack Transceiver 2110 series Repair Guide
95
This page has been left blank intentionally.
96
Manpack Transceiver 2110 series Repair Guide
Figure 30:
Disassembly flowchart
Repair procedures, tests, and adjustments
Disassembly
flowchart
Disassemble
transceiver
See page 77
Is there
damage to chassis
or external
connectors?
Yes
Replace damaged parts
Yes
Replace corroded parts
Check for leaks
Replace o-rings
Yes
Replace or reconnect
cables
Yes
Tighten fasteners, as
required
No
Is there
corrosion to internal
metal parts?
No
Are any cables
damaged or
disconnected?
No
Are
any fasteners
loose?
No
Return to Repair
flowchart
See page 95
Manpack Transceiver 2110 series Repair Guide
97
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98
Manpack Transceiver 2110 series Repair Guide
Figure 31: Power On fault diagnosis flowchart
Repair procedures, tests, and adjustments
Power On fault
diagnosis flowchart
No
Battery
Power supply
While charging
Disassemble 2110
See page 77
Does the unit
power up?
Charge battery
No
Switch on 2110, then
check current
Is the current
drawn > 10 mA?
Yes
No
Does the unit
power up?
Yes
Is the
LCD on and
showing the home
screen?
Is any
current drawn, or
are relay clicks
heard?
Yes
Does the unit
power up?
Replace PA & Filter PCB
Check J301 and J302
ribbon cables on Audio &
Control PCB and Front
Panel Assembly
Check fuse F3–F4 on
PA & Filter PCB
Is the
state of health of the
battery <20%?
Is fuse blown?
Yes
No
Replace with new battery
Check cables J301 and
J302 on Audio & Control
PCB
Is the current
drawn > 220 mA?
Yes
Leave 2110 on, switch off
power at supply and
disconnect J301 and J302
on Audio & Control PCB
Connect P101 on
Audio & Control PCB
No
No
Yes
Yes
No
No
Replace with charged,
good battery
Disconnect P101,
P102 and P103 on
Audio & Control PCB
Repair fuse
Is the current
drawn > 120 mA, or
fuse blows?
Yes
Switch on power supply
No
Is the current
drawn > 50 mA or
fuse blows?
Connect P102 on
Audio & Control PCB
Yes
No
No
Yes
Are cables OK?
Yes
No
Replace J301 and J302
Is the current
drawn > 120 mA, or
fuse blows?
Yes
No
Replace Front Panel
Assembly
Connect P103 on
Audio & Control PCB
No
Is the current
drawn > 220 mA, or
fuse blows?
Yes
Replace Antenna Tuner
PCB
Yes
Replace RF/IF &
Synthesiser PCB
Replace Audio &
Control PCB
Replace Front Panel
Assembly
Return to Repair
flowchart
See page 95
Manpack Transceiver 2110 series Repair Guide
99
This page has been left blank intentionally.
100
Manpack Transceiver 2110 series Repair Guide
Figure 32: Receive fault diagnosis flowchart 1
Receive fault
diagnosis
flowchart 1
Repair procedures, tests, and adjustments
Disassemble 2110
See page 77
Set Cfg Auto Tune Mode
to 50 ohm
Set RF signal generator
to –30 dBm, Cfg Auto
Tune Mode to 50 ohm
and connect antenna to
50 ohm port
Check that frequency and
mode are correct
Set RF signal generator
to –40 dBm then feed
into 50 ohm port
Is
Rx indicator at
full scale?
Check RF at TP101 on
RF/IF & Synthesiser PCB
No
Is
RF at TP101
60 mV p–p?
Set Cfg Auto Tune Mode
to ATU
Yes
Receive fault
diagnosis flowchart 2
See page 103
Yes
No
Set RF signal generator
to –40 dBm, then feed
into ATU port
Disable mute and scan
Is
Rx indicator at
full scale?
Yes
No
Is a tone
audible from
0208?
Yes
Check RF at OUTPUT on
RF/IF & Synthesiser PCB
Return to Repair
flowchart
50 ohm cable/connection
suspected faulty
Antenna Tuner PCB,
PA & Filter PCB, or
RF/IF & Synthesiser PCB
suspected faulty
Is
RF at OUTPUT
60 mV p–p?
Yes
Check RF at TX_RX on
PA & Filter PCB
No
Is
RF at TX_RX
60 mV p–p?
Check RF at centre
pin of J2 on
Antenna Tuner PCB
No
Replace PA & Filter PCB
See page 95
No
Yes
Switch on internal speaker
Is
RF at J2
60 mV p–p?
Is a tone
audible from internal
speaker?
No
Check and/or
replace 50 ohm connector
and associated coaxial
cable on front panel
Yes
Check and/or
replace coaxial cable
between Antenna Tuner
PCB and PA &
Filter PCB
Check and/or
replace coaxial cable
between PA & Filter
PCB and RF/IF &
Synthesiser PCB
No
Yes
Check RF at centre
pin of J1 on
Antenna Tuner PCB
Yes
Is a tone
audible from
handset?
Yes
Front Panel PCB
suspected faulty
Is
RF at J1
60 mV p–p?
No
Audio & Control PCB
or Front Panel PCB
suspected faulty
No
Replace Antenna Tuner
PCB
Manpack Transceiver 2110 series Repair Guide
101
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102
Manpack Transceiver 2110 series Repair Guide
Figure 33: Receive fault diagnosis flowchart 2
Repair procedures, tests, and adjustments
Receive fault
diagnosis
flowchart 2
Check audio between
P2 pins 2 and 3 on
Front Panel PCB
Check RF at RX_AUDIO
on Audio & Control PCB
Is
RF at RX_AUDIO
1.2 V p–p?
No
Is audio
between pins 2 and 3
1.2 V p–p?
Check RF at Rx AUDIO
on RF/IF & Synthesiser
PCB
No
Replace Front Panel PCB
No
Replace internal speaker
No
Replace Front Panel PCB
Yes
Is
RF at Rx AUDIO
1.2 V p–p?
Yes
Check RF at
AUDIO_OUT_A/B on
Audio & Control PCB
Is RF
at AUDIO_OUT_A/B
1.2 V p–p?
No
No
Replace Audio &
Control PCB
Yes
Check and/or
replace ribbon cable
between RF/IF &
Synthesiser PCB and
Audio & Control PCB
Replace RF/IF &
Synthesiser PCB
Is
there an audible
tone?
Yes
Check external speaker is
selected
Yes
Check audio between
J4 pins 8 and 18 on
Front Panel PCB
Lower Front Panel
Assembly from chassis
Check RF at AF_OUT on
Front Panel PCB
Is
RF at AF_OUT
1.2 V p–p?
No
Check and/or
replace ribbon cable
J2 between Audio &
Control PCB and
Front Panel PCB
Is audio
between pins 8 and 18
1.2 V p–p?
Yes
Yes
Check internal speaker is
switched on
Check and/or
replace Handset audio
connector on Front
Panel Assembly
Manpack Transceiver 2110 series Repair Guide
103
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104
Manpack Transceiver 2110 series Repair Guide
Figure 34: Transmit fault diagnosis flowchart 1
Repair procedures, tests, and adjustments
Transmit fault
diagnosis
flowchart 1
Is TP101 level
60 mVp–p?
PTT using the 0208 with
two-tone set to minimum
Yes
Check audio at pin 2 or
3 again whilst pressing
PTT on the handset and
whistling into the
microphone
Transmit fault
diagnosis flowchart 2
See page 107
No
Does
Rx audio stop
and clicking
start?
No
Check audio at Tx AF on
RF/IF & Synthesiser PCB
Yes
Is
audio at Tx AF
900 mV p–p?
PTT via handset
Yes
Is
audio visible on
pins 2 or 3?
Replace RF/IF &
Synthesiser PCB
No
Replace Front Panel PCB
Yes
Replace Front Panel PCB
No
Does
Rx audio stop
and clicking
start?
No
Audio & Control PCB
or Front Panel PCB
suspected faulty
Check audio at TX_Audio
on Audio & Control PCB
Yes
Yes
Is
audio at TX_Audio
900 mV p–p?
Connect whip antenna to
antenna stud and set Cfg
Auto Tune Mode to ATU
Yes
Check and/or
replace ribbon cable
between P202 on RF/IF
& Synthesiser PCB and
P103 on Audio &
Control PCB
Check audio at J4 across
pins 30 or 32 on Front
Panel PCB
No
Press TUNE, then
press PTT
Repeat over several
bands
Is
clicking heard
from ATU?
Are
pins 30 or 32
1.2 V p–p?
Check audio at
GP_AUDIO_IN+/–
on Audio & Control PCB
No
Yes
Antenna Tuner PCB
suspected faulty
Is audio at
GP_AUDIO_IN+/–
200 mV p–p?
No
No
Audio & Control PCB
or Front Panel PCB
suspected faulty
Lower Front Panel
Assembly from chassis
Disassemble 2110
Check audio at P2 across
pin 2 or 3 on
Front Panel PCB
Yes
Replace Audio &
Control PCB
Check and/or
replace GPIO audio
connector on Front
Panel Assembly
No
See page 77
Set 0208 balance to T1,
output level to –10 dBm,
then key PTT on 0208
Is
audio 200 mV p–p
on pin 2 or 3
of P2?
Yes
Check and/or
replace ribbon cable
J2 between Audio &
Control PCB and Front
Panel PCB
Check TP101 on RF/IF &
Synthesiser PCB
Manpack Transceiver 2110 series Repair Guide
105
This page has been left blank intentionally.
106
Manpack Transceiver 2110 series Repair Guide
Figure 35:
Transmit fault diagnosis flowchart 2
Repair procedures, tests, and adjustments
Transmit fault
diagnosis
flowchart 2
Check RF at OUTPUT on
PA & Filter PCB
Is
RF at OUTPUT
1.2 V p–p?
Yes
Check RF at TX_RX on
PA & Filter PCB
No
Is
RF at TX_RX
160 mV p–p?
Check RF at centre pin of
J2 on Antenna Tuner PCB
No
Replace PA & Filter PCB
Yes
Check and/or
replace coaxial cable
between PA & Filter
PCB and RF/IF &
Synthesiser PCB
Is
RF at J2
110 V p–p?
No
Check and/or
replace 50 ohm
connector and associated
coaxial cable on
front panel
Yes
Check and/or
replace coaxial cable
between Antenna
Tuner PCB and
PA & Filter PCB
Yes
Check RF at centre pin of
J1 on Antenna Tuner PCB
Is
RF at J1
60 V p–p?
No
Replace Antenna Tuner
PCB
Manpack Transceiver 2110 series Repair Guide
107
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108
Manpack Transceiver 2110 series Repair Guide
Repair procedures, tests, and adjustments
Test sheet for the 2110 series Manpack Transceiver
Job details
Job number:
Date:
Technician:
Reported fault:
Test sheet is used for diagnostic / functional test (circle as required)
Transceiver details
Unit
Serial number
Firmware version
2110 Transceiver
Unit
Battery pack
Handset
Options fitted:
Mechanical inspection
Inspect for...
Yes/No
Action
Physical damage
Water ingress
Corrosion
Connector pins straight
Operational tests
Test
Criteria
Power On
(Battery)
Front panel displays Logo
screen
Reading
Pass/Fail
Action
Power On
Current drawn < 220 mA
(Power supply) with backlight off
Existing profile saved as:
Test profile saved as:
Manpack Transceiver 2110 series Repair Guide
109
Repair procedures, tests, and adjustments
Operational tests
Test
Criteria
Front panel
screen
All pixels flash
Reading
Pass/Fail
Action
Reading
Pass/Fail
Action
Each key is displayed on
screen when pressed
Backlight on/off
Internal speaker
Basic operation Scan on/off
Calling process
Receive tests
Test
Criteria
Basic Receive
Audible 1 kHz tone from
0208, –6 dB at full volume
Antenna Tuner
AC voltmeter reading
approx. –20 dBm
Sensitivity
RF amp on, RF output level
–120 dBm, AC voltmeter
reading > 10 dB
RF amp off, RF output level
–114 dBm, AC voltmeter
reading > 10 dB
AGC
RF output level from signal
generator < –106 dBm
Audio Output
RF output level –60 dBm
with audible tone from 0208
Waveform that does not clip
and reaches 1.0 V p–p
Selectivity
±1 kHz from SCF, RF
output level from signal
generator –55 dBm, AC
voltmeter reading < 0 dB
±4 kHz from SCF, RF
output level from signal
generator –55 dBm, AC
voltmeter reading < 0 dB
Noise Limiter
110
Faint 1 kHz tone with
buzzing is audible from
0208
Manpack Transceiver 2110 series Repair Guide
Repair procedures, tests, and adjustments
Transmit tests
Test
Criteria
Basic Transmit
Tx PWR Hi: RF power
meter reading approx. 10 to
25 W PEP, current drawn
<5A
Reading
Pass/Fail
Action
Tx PWR Lo: RF power
meter reading approx. 5 W
PEP, current drawn < 2 A
Antenna Tuner
SWR reduces to < 2, power Band 1
to load > 25 W PEP
Band 2
Band 3
Band 4
Band 5
Band 6
Band 7
Frequency
Frequency counter reading
within 20 Hz of channel
frequency (
MHz)
ALC
PEP @ ALC threshold
Output level @ ALC
threshold
Increase in RF output level
< 0.5 dB
DC supply current @ 3 dB
below ALC threshold (with
load)
DC supply current reduced
by 50% @ 3 dB below ALC
threshold (without load)
Manpack Transceiver 2110 series Repair Guide
111
Repair procedures, tests, and adjustments
Transmit tests (cont.)
Test
Criteria
Reading
RF Output
Power
RF power meter reading
between 20 and 25 W PEP
for each band
4 to 6 MHz
Pass/Fail
Action
Band 1
Band 2
Band 3
Band 4
Band 5
Band 6
Band 7
Low Power
RF power meter reading
between 4 to 5 W PEP for
each band
4 to 6 MHz
Band 1
Band 2
Band 3
Band 4
Band 5
Band 6
Band 7
Distortion
112
Oscilloscope: RF waveform
envelope is acceptable
If Fail, what
type?
Manpack Transceiver 2110 series Repair Guide
Repair procedures, tests, and adjustments
Transmit tests (cont.)
Test
Criteria
Intermodulation Spectrum analyser: IMD
products 26 dB down on
each band
Reading
Pass/Fail
Action
Band 1
Band 2
Band 3
Band 4
Band 5
Band 6
Band 7
Spectrum analyser: spurious
transmissions and
harmonics typically
> 60 dB below peak carrier
level
Manpack Transceiver 2110 series Repair Guide
113
Repair procedures, tests, and adjustments
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114
Manpack Transceiver 2110 series Repair Guide
Options
NOTE
Fitted options are indicated on the label on the back panel of the
transceiver.
The figures in this section are required for identifying a fitted option. If an option is also
supported in the firmware, ensure that the option is not active at the time of testing, for
example, the voice encryptor is not active.
For information on option...
See...
GPS Receiver
Figure 36
Connector for External GPS Antenna
Figure 37
Voice Encryptor
Figure 38
Filters
Figure 39
Figure 36: GPS receiver
FRONT PANEL ASSEMBLY
GPS antenna
GPS Receiver PCB
FRONT PANEL PCB
Manpack Transceiver 2110 series Repair Guide
115
Options
Figure 37: Connector for external GPS antenna
NUT & WASHER SUPPLIED
WITH CABLE ASSEMBLY.
TIGHTEN NUB TO 3 Nm.
NOTE
Table 20:
116
The connector for the external GPS antenna is part of the Front Panel
Assembly. The GPS connector is optional for 2110 Manpack
Transceivers. It is not available for the 2110v.
Front Panel Assembly and Final Assembly with GPS connector
Transceiver
Front Panel Assembly
Final Assembly
2110
08-06140-003
08-06155-008
08-06155-009
Manpack Transceiver 2110 series Repair Guide
Options
Figure 38: Voice encryptor
Encryptor PCB
AUDIO & CONTROL PCB
Figure 39: Filters
Filter assembly
RF/IF PCB
Manpack Transceiver 2110 series Repair Guide
117
Options
This page has been left blank intentionally.
118
Manpack Transceiver 2110 series Repair Guide
Definitions
Standards and icons
The following standards and icons are used in this guide:
This typeface...
Means...
Bold
name of an entry in a list
Italics
a cross-reference, or text requiring emphasis
This icon...
Means...
WARNING
your actions may cause harm to yourself or the equipment
CAUTION
proceed with caution as your actions may lead to loss of data,
privacy or signal quality
NOTE
the text provided next to this icon may be of interest to you
1
a step to follow
Manpack Transceiver 2110 series Repair Guide
119
Definitions
Definitions
Acronyms and abbreviations
120
This acronym...
Means...
A/F, AF
audio frequency
AC
alternating current
AGC
automatic gain control
ALC
automatic level control
ALE
automatic link establishment, address latch enable
AM
amplitude modulation
ATU
antenna tuner unit
BPF
band-pass filter
CALM
Codan automated link management
codec
coder/decoder
CPLD
complex programmable logic device
CRO
cathode ray oscilloscope
CTS
clear to send
CW
continuous wave, carrier wave
DAC
digital to analogue converter
DC
direct current
DDS
direct digital synthesis
DSP
digital signal processor/processing
EEPROM
electrically erasable programmable read only memory
EXT
external
FET
field-effect transistor
FWD
forward
GPIO
general purpose input/output
GPS
global positioning system
HF
high frequency
I/P
input
IC
integrated circuit
IF
intermediate frequency
Manpack Transceiver 2110 series Repair Guide
Definitions
This acronym...
Means...
IMD
intermodulation distortion
LCD
liquid crystal display
LED
light-emitting diode
LO
local oscillator
LPF
low-pass filter
LSB
lower sideband
Modem
modulator-demodulator
NiMH
nickel metal hydride
NSP
NGT system programmer
O/P
output
PA
power amplifier
PC
personal computer
PCB
printed circuit board
PD
potential difference
PEP
peak envelope power
p–p
peak-to-peak
ppm
parts per million
PTT
press-to-talk
PWR
power
REF OSC
reference oscillator
RF
radio frequency
RMS
root mean square
RTS
request to send
Rx
receive, receiver
SCF
suppressed carrier frequency
SCL
serial clock
SDA
serial data
SINAD
(signal+noise+distortion)-to-(noise+distortion) ratio
SMB
system management bus
SLA
sealed lead acid
SSB
single sideband
TCW
tinned copper wire
Manpack Transceiver 2110 series Repair Guide
121
Definitions
This acronym...
Means...
THD
total harmonic distortion
Tx
transmit, transmitter
UART
universal asynchronous receiver/transmitter
USB
upper sideband
VCO
voltage-controlled oscillator
VSWR
voltage standing wave ratio
This term...
Means...
channel
A frequency range over which signals can be transmitted and
received.
coder/decoder
A device combining analogue to digital and digital to analogue
converters.
digital signal
processor (DSP)
A microprocessor-like device that is designed to provide real-time
processing of high-volume digital data streams.
Easitalk®
A feature that enables the user to reduce the level of background
noise that is present when listening to a channel.
frequency
The number of cycles per second of a radio wave, usually
expressed in kilohertz.
front panel
A panel on the transceiver that is used to control the functions of
the transceiver. It consists of a display, keypad and connectors.
handset
A hand-held device that consists of a microphone, PTT button, and
earphone.
PTT button
Press-to-talk button, located on the left side of the handset. This
button enables you to communicate during voice calls, switch mute
off, cancel voice calls prior to the point where voice can be
transmitted, cancel calls where data is being transmitted, and exit
out of editable screens without saving changes.
transceiver unit
The unit in a transceiver that modulates audio signals onto radio
frequencies that can be transmitted on air, and demodulates the
radio frequencies it receives into audio signals.
Glossary
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Manpack Transceiver 2110 series Repair Guide
Definitions
Circuit reference designations
Abbreviation
Designation
A
assembly
B
transducer—microphone, loudspeaker etc
C
capacitor
D
diode—small signal and power
E
heating device
F
protection device—fuse etc
G
generator—battery etc
H
signalling/indicating device—lamp, LED, buzzer etc
IC
integrated circuit, thick film hybrid etc
J
jack socket
K
relay, key switch
L
inductor
M
indicating device—meter etc
P
plug
R
resistor
S
switch
T
transformer, common mode choke
TP
test point
U
modem, modulator-demodulator
V
semiconductor (not including small signal and power diodes)
X
terminals
Z
quartz crystal, crystal filter, frequency network
Manpack Transceiver 2110 series Repair Guide
123
Definitions
Units
Measurement
Unit
Abbreviation
Current
ampere
A
Frequency
hertz
Hz
Impedance
ohm

Length
metre
(inch/feet/yard/mile)
m
(in/ft/yd/mi)
Mass
gram
(pound)
g
(lb)
Power
watt
W
Power
decibels relative to 1 mW
dBm
Power
decibels relative to 1 mV
dBv
Power ratio
decibel
dB
Temperature
degrees Celsius
(degrees Fahrenheit)
°C
(°F)
Time
hour
h
second
s
volt
V
Unit
Name
Multiplier
p
pica
0.000000000001
µ
micro
0.000001
m
milli
0.001
d
deci
0.1
k
kilo
1000
M
mega
1000000
Voltage
Unit multipliers
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Manpack Transceiver 2110 series Repair Guide
Definitions
About this issue
This is the first issue of the Manpack Transceiver 2110 series Repair Guide.
Associated documents
This guide is one of a series of documents related to the 2110 series Manpack
Transceiver. Other associated documents are:
•
Manpack Transceiver 2110 series Getting Started Guide (Codan part number
15-04136-EN)
•
Manpack Transceiver 2110 series Reference Manual (Codan part number
15-04135-EN)
•
Manpack Transceiver 2110 series Technical Service Manual (Codan part number
15-02071-EN)
•
NGT System Programmer Help (Codan part number 15-04164-EN)
•
Declaration of Conformity for the 2110 SSB Transceiver (Codan part number
19-40157)
Manpack Transceiver 2110 series Repair Guide
125
Definitions
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Manpack Transceiver 2110 series Repair Guide
Specifications
The figures listed for specifications will normally be exceeded by production equipment.
Where relevant, typical values are given in brackets [ ]. All measurements are made at
13.6 V DC, with 50  source and load resistances at 25°C ambient temperature, unless
otherwise specified.
General
Table 21:
General specifications
Item
Specification
Frequency range
Transmit:
1.6 to 30 MHz
Receive:
0.25 to 30 MHz
Channel capacity
400 channels
(single or two-frequency
600 channels if MIL-STD-188-141B ALE option is installed
simplex channels)
Frequency generation
All frequencies generated by PLL and DDS synthesisers with 10 Hz resolution
Operating modes
Single sideband (J3E) USB or LSB or switched USB/LSB (AM H3E optional)
Frequency stability
±1.5 [1] ppm
(–30 to +60°C)
(standard)
±0.5 ppm
(–30 to +60°C)
(high stability)
Programming
Configuration of transceiver is via the GPIO port using NSP programming
software and a PC, or via the front panel by qualified personnel or, where
permitted, by the operator
RF input/output
impedance
Whip/long wire antenna via internal antenna tuner, or
50  nominal at 50  antenna port
Supply voltage
12 V DC nominal from supplied battery, negative earth
Nominal operating range:
10.5 to 15.5 V DC
Reverse polarity protected
Overvoltage protection
Shut down at 16 V ±0.5 V DC nominal for duration of overvoltage
Low voltage switch off
Switch off @ 10 V
Supply current
Transmit:
see Table 23 on page 130
Receive:
no signal 120 mA nominal (standby mode)
no signal 145 mA nominal (operating mode)
average speech 1 A for battery life calculations
Manpack Transceiver 2110 series Repair Guide
127
Specifications
Table 21:
General specifications (cont.)
Item
Specification
Useable battery life
(Tx:Rx ratio of 1:9)
17 Ah LiFePO4:
65 h
13 Ah NiMH battery pack:
50 h
8 Ah NiMH battery pack:
30 h
7 Ah SLA battery pack:
15 h
Environment
Ambient temperature:
30 to +60°C
(–22 to 140°F)
Relative humidity:
95% non-condensing
Derate upper ambient temperature by 1°C per 330 m above sea level
MIL-STD-810F compliance:
Method 500.4: Low Pressure (Altitude)
Method 506.4: Rain
Method 507.4: Humidity
Method 508.5: Fungus
Method 509.4: Salt Fog
Method 510.4: Sand and Dust
Method 512.4: Immersion
Method 514.5: Vibration
Method 516.5: Shock
Cooling
Convection from case
Size
2110 (including battery): 245 mm W × 350 mm D × 92 mm H
(9.8 in W × 14.0 in D × 3.7 in H)
2110 only:
245 mm W × 250 mm D × 92 mm H
(9.8 in W × 10.0 in D × 3.7 in H)
2110 only:
2.5 kg
(5.5 lb)
17 Ah LiFePO4 battery
pack:
2.6 kg
(5.7 lb)
13 Ah NiMH battery
pack:
2.9 kg
(6.4 lb)
8 Ah NiMH battery
pack:
2.1 kg
(4.6 lb)
7 Ah SLA battery pack:
3.2 kg
(7.1 lb)
Sealing
IP68 (MIL-STD 810F):
immersion for 1 hour at a depth of 1 m (3 ft)
Finish colour
Dark Grey
Microphone
Standard military handset with microphone, earphone and PTT push-button
switch
Weight
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Manpack Transceiver 2110 series Repair Guide
Specifications
Receiver
Table 22:
Receiver specifications at 50  antenna connector
Item
Specification
Type
Dual conversion, superheterodyne
IF frequencies
45 MHz and 455 kHz
Sensitivity
Frequency:
0.25 to 30 MHz
RF amp off:
0.45 [0.28] V PD
–114 [–118] dBm
Frequency:
1.6 to 30 MHz
RF amp on:
0.22 [0.14] V PD
–120 [–124] dBm
For 10 dB SINAD with greater than 50 mW audio output power
Input protection
Will withstand 50 V p–p RF from a 50  source
Selectivity
Greater than 65 [70] dB at –1 kHz and +4 kHz reference SCF USB
Desensitisation
Blocking
Maximum pass band
level variation:
8 [6] dB
@ 300 to 2600 Hz
Ripple:
4 [2] dB p–p
@ 500 to 2500 Hz
10 dB SINAD reduced to 7 dB SINAD
1 and +4 kHz (ref SCF) USB
50 [55] dB
10 kHz
65 [70] dB
50 kHz
80 [85] dB
As for Desensitisation
For frequencies > ±50 kHz > 80 dB
Image rejection
Better than 85 [90] dB
Spurious responses
Better than 70 [80] dB
No more than 10 self-generated signals > 0.15 V PD
Intermodulation
To produce a third order intermodulation product equivalent to a wanted signal
producing 10 dB SINAD, two unwanted signals, greater than 30 kHz removed
from the wanted signal, must have a level greater than 80 [82] dB above the
wanted signal
Third order intercept (unaffected by AGC):
+10 [+13] dBm with RF amp off
+0 [+3] dBm with RF amp on
AGC
Less than 6 dB variation in output for input variation between 2.0 [1.0] V and
100 mV PD (RF amp on)
Fast attack, slow release (selectable release time)
Manpack Transceiver 2110 series Repair Guide
129
Specifications
Table 22:
Receiver specifications at 50  antenna connector (cont.)
Item
Specification
A/F power and A/F
distortion
Internal speaker:
0.5 W typical into 8 , 10% THD
0.4 W minimum, 5% THD
External speaker on
GPIO connector:
1 W typical into 4  10% THD
0.75 W minimum, 5% THD
Clarifier
±10 ppm (nominal) above 5 MHz
±50 Hz below 5 MHz
Clarifier is automatically reset to mid-frequency with channel change
Signal to noise vs input
signal
An increase of input level of 40 dB above the sensitivity level increases the
signal-to-noise ratio to at least 35 dB
Transmitter
Table 23:
Transmitter specifications at 50  antenna connector
Item
Specification
Power output
25 W PEP 0.5 dB (high power)
5 W PEP 0.5 dB (low power)
CW or single tone: approximately 60% of PEP with average PEP control
(average control disabled on handset PTT)
Duty cycle
Supply current
Protection
50%:
normal speech over full temperature range
50%:
multi-tone continuous data mode (5 minutes on maximum) at
ambient temperature up to 40°C (104°F) using 50  antenna port
Two-tone into 50 :
2.5 to 3.5 A
Average speech:
1 A for battery life calculations
Safe under all load conditions by limiting reflected power to 4 W PEP and
limiting PA transistor collector voltage swing
Thermal protection against excessive heatsink temperature
A/F response
Overall response of microphone and transmitter rises approximately
6 dB/octave 300 to 2700 Hz
Electrical input:
–8 [–6] dB
300 to 2600 Hz
Ripple:
4 [2] dB p–p
500 to 2500 Hz
Spurious and harmonic
emissions
Better than 60 [65] dB below PEP
Carrier suppression
50 [60] dB below PEP
Unwanted sideband
55 [70] dB below PEP (400 Hz)
65 [70] dB below PEP (1 kHz)
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Manpack Transceiver 2110 series Repair Guide
Specifications
Table 23:
Transmitter specifications at 50  antenna connector (cont.)
Item
Specification
Intermodulation
(Two-tone test)
26 [30] dB below each tone
32 [36] dB below PEP
ALC
A 10 dB increase in signal input above compression threshold produces less
than 0.5 dB increase in power output
Maximum ALC range greater than 30 dB
ALC attack time approximately 1 ms
Microphone
Standard military handset with Dynamic mic insert
Antenna tuner
Table 24:
Antenna tuner specifications
Item
Specification
Tuning limit
< 1.5:1 typical SWR
All tuning activity performed at 5 W nominal
Antenna types
@ antenna stud
Short Whip 1.5 m (5 ft) (nominal):
from 3 to 30 MHz
Long Whip 3 m (10 ft) (nominal):
from 2 to 30 MHz
Long Wire 10 m (33 ft):
from 1.6 to 30 MHz
Memory capacity
The last 100 frequencies selected
Tuning time
(antenna types as in
General specifications)
First-time tuning:
2.5 s typical
From memory:
50 ms typical
Duty cycle @ antenna
stud
10%:
Protection
Safe under all load conditions
normal speech over full temperature range
GPS connector
Table 25:
GPS connector specifications
Item
Specification
DC level
3.3 V ±10%
Current limit
150 mA ±50 mA
Operating current
5 to 30 mA
10 mA nominal
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Specifications
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Manpack Transceiver 2110 series Repair Guide
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