Teledyne ADFM Pro20 Technical Manual page 8

Table of Contents
Maintenance ............................................................................................4-1
4-1 Introduction...............................................................................................................4-1
4-2 Desiccant..................................................................................................................4-1
4-3 Battery Replacement................................................................................................4-2
4-3.1 Replacing the Alkaline Lantern System Batteries................................................4-2
4-3.2 Replacing the Lead-Acid System Batteries .........................................................4-3
4-3.3 Recharging The Lead-Acid System Batteries......................................................4-3
4-3.4 Replacing The Real Time Clock Backup Battery.................................................4-4
4-4 Fuse Replacement ...................................................................................................4-4
4-5 Changing Mains Supply Voltage ..............................................................................4-5
4-6 Replacement Parts...................................................................................................4-6
ADFM Test Procedures...........................................................................5-1
5-1 Introduction...............................................................................................................5-1
5-2 Test Setup ................................................................................................................5-1
5-3 Built-In Diagnostic Tests...........................................................................................5-2
5-3.1 Automatic Built-In Test Test ................................................................................5-2
5-4 Using BBTALK to Test the ADFM ............................................................................5-3
5-4.1 Diagnostic Tests ..................................................................................................5-3
5-4.2 Receive Path Test ...............................................................................................5-4
5-4.3 Transmit Test.......................................................................................................5-5
5-4.4 Sensor Test .........................................................................................................5-6
5-4.5 Modem Test.........................................................................................................5-7
5-4.6 Recorder Test......................................................................................................5-7
5-5 Using WinADFM to Test the ADFM..........................................................................5-8
5-5.1 Connect ...............................................................................................................5-8
5-5.2 Bench Test ..........................................................................................................5-8
5-5.3 Field Test.............................................................................................................5-9
ADFM Troubleshooting ..........................................................................6-1
6-1 Introduction...............................................................................................................6-1
6-2 Equipment Required.................................................................................................6-2
6-3 Power On Fault Isolation ..........................................................................................6-3
6-4 Fault Isolation ...........................................................................................................6-3
6-5 Least Replaceable Assembly Fault Isolation............................................................6-6
6-5.1 Built-in Test is Not Executing...............................................................................6-6
Communication....................................................................................................6-6
6-5.2 Power ..................................................................................................................6-7
6-5.3 BIT Determines a Problem Associated with the Transducer .............................6-10
ADFM System Overview ........................................................................ A-1
A-1 Introduction.............................................................................................................. A-1
A-2 Electronics Unit Circuit Description ......................................................................... A-1
A-2.1 Power Supply System......................................................................................... A-1
A-2.2 Receiver ............................................................................................................. A-2
A-2.3 Timing Generator................................................................................................ A-3
A-2.4 Central Processing Unit...................................................................................... A-3
A-2.5 User Interface ..................................................................................................... A-4
A-3 Transducer Electronics Circuit Description ............................................................. A-5
A-3.1 Multiplexer .......................................................................................................... A-5
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MGD Technologies Inc.