DMD2050 Universal Satellite Modem
Maintenance and Troubleshooting
TM110 – Rev. 1.3
6-1
Maintenance and Troubleshooting
6
This section discusses unit maintenance and troubleshooting for the DMD2050 Universal Satellite
Modem.
The DMD2050 contains a Lithium Battery.
DANGER OF EXPLOSION
exists if the battery is incorrectly replaced. Replace only with the same
or equivalent type recommended by the manufacturer. Dispose of used
batteries in accordance with local and national regulations.
6.0 Periodic Maintenance
There is no external fuse on the DMD2050. The fuse is located on the power supply assembly
inside the case, and replacement is not intended in the field.
6.0.1 Clock Adjustment
The DMD2050 allows for internal VCO speed adjustment from the front panel. Clock adjustment
should be performed only when an internal clock source has insufficient accuracy for the custom
modem application.
6.1 Troubleshooting
Should a unit be suspected of a defect in field operations after all interface signals are verified,
the correct procedure is to replace the unit with another known working DMD2050. If this does
not cure the problem, wiring or power should be suspect.
The following is a brief list of possible problems that could be caused by failures of the modem or
by improper setup and configuration for the type of service. The list is arranged by possible
symptoms exhibited by the modem.
Summary of Contents for DMD2050
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Page 16: ...Table of Contents DMD2050 Universal Satellite Modem xvi TM110 Rev 1 3...
Page 19: ...DMD2050 Universal Satellite Modem Introduction TM110 Rev 1 3 1 1...
Page 25: ...Installation DMD2050 Universal Satellite Modem 2 6 TM110 Rev 1 3...
Page 57: ...Theory of Operation DMD2050 Universal Satellite Modem 3 32 TM110 Rev 1 3...
Page 119: ...User Interfaces DMD2050 Universal Satellite Modem 4 62 TM110 Rev 1 3...
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Page 177: ...Technical Specifications DMD2050 Universal Satellite Modem 7 26 TM110 Rev 1 3...
Page 180: ...DMD2050 Universal Satellite Modem TM110 Rev 1 3...
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Page 196: ...DMD2050 Universal Satellite Modem Appendix D TM110 Rev 1 3 D 7...
Page 208: ...DMD2050 Universal Satellite Modem Appendix F TM110 Rev 1 3 F 7...