Amron 2820A, User Manual

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2820A-XX & 2825A-XX SERIES TWO DIVER COMMUNICATOR USER MANUAL
282XA-UM REV 5.0
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TABLE OF CONTENTS
1 INTRODUCTION AND SPECIFICATIONS .......................................................................................... 1
1.1 INTRODUCTION ........................................................................................................................... 1
1.2 SPECIFICATIONS ........................................................................................................................ 1
1.3 BATTERY LIFE ............................................................................................................................. 2
1.4 MATERIALS, WEIGHTS & DIMENSIONS .................................................................................... 2
2 OPTIONS AND ACCESSORIES .......................................................................................................... 3
2.1 OPTIONS ...................................................................................................................................... 3
2.2 ACCESSORIES ............................................................................................................................ 3
3 CONTROLS AND CONNECTIONS...................................................................................................... 5
3.1 TENDER CONTROLS & CONNECTIONS ................................................................................... 5
3.2 DIVER CONTROLS & CONNECTIONS ....................................................................................... 8
3.3 HELIUM SPEECH UNSCRAMBLER (DSP3) CONTROLS .......................................................... 9
3.4 WIRELESS TENDER (28B) CONTROLS ................................................................................... 10
3.5 DRAWING, 2-WIRE CONNECTIONS......................................................................................... 11
3.6 DRAWING, FULL DUPLEX (4-WIRE) CONNECTIONS ............................................................. 12
3.7 DRAWING, OPERATOR CONNECTIONS, HAND HELD MICROPHONE ................................ 13
3.8 DRAWING, OPERATOR CONNECTIONS, HEADSET .............................................................. 14
4 OPERATION ....................................................................................................................................... 15
4.1 BATTERY CHARGING ............................................................................................................... 15
4.2 BATTERY CONDITION .............................................................................................................. 16
4.3 BATTERY INSTALLATION ......................................................................................................... 16
4.4 MODES OF OPERATION ........................................................................................................... 16
4.5 VOLUME CONTROLS (2-WIRE) ................................................................................................ 18
4.6 VOLUME CONTROLS FULL DUPLEX (4-WIRE) ....................................................................... 18
4.7 HELIUM SPEECH UNSCRAMBLER OPTION ........................................................................... 19
5 MAINTENANCE AND TROUBLESHOOTING ................................................................................... 23
5.1 FULL DUPLEX (4-WIRE) CHECK .............................................................................................. 23
5.2 2-WIRE CHECK .......................................................................................................................... 23
5.3 GENERAL MAINTENANCE ........................................................................................................ 24
5.4 RECOMMENDED MAINTENANCE SCHEDULE ....................................................................... 24
5.5 TROUBLESHOOTING ................................................................................................................ 26
6 DRAWINGS ........................................................................................................................................ 29
6.1 PARTS IDENTIFIER, MODEL 2820A-11 WEATHER RESISTANT AC POWER MODULE ...... 30
6.2 PARTS IDENTIFIER, MODEL 2825A-11 WEATHER RESISTANT AC POWER MODULE ...... 31
6.3 PARTS IDENTIFIER, MODEL 2825A-12 WEATHER RESISTANT AC POWER MODULE &
DSP3 HELIUM SPEECH UNSCRAMBLER ............................................................................... 32
6.4 PARTS IDENTIFIER, MODEL 2825A-13 WEATHER RESISTANT AC POWER MODULE & 28B
WIRELESS TENDER.................................................................................................................. 33