DM240XR High-Speed Digital Modulator
Maintenance and Troubleshooting
TM120 – Rev. 1.1
6-1
Maintenance and Troubleshooting
6
This section discusses unit maintenance and troubleshooting for the DM240XR High-Speed
Digital Modulator.
6.0 Periodic Maintenance
The DM240XR modulator requires no periodic field maintenance procedures. 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 DM240XR. If this does not cure the
problem, wiring or power should be suspect.
There is no external fuse on the DM240XR. The fuse is located on the power supply assembly
inside the case, and replacement is not intended in the field.
Summary of Contents for DM240XR
Page 2: ......
Page 10: ...Table of Contents DM240XR High Speed Digital Modulator x TM120 Rev 1 1 ...
Page 12: ...Introduction DM240XR High Speed Digital Modulator 1 2 TM120 Rev 1 1 ...
Page 16: ...Installation DM240XR High Speed Digital Modulator 2 4 TM120 Rev 1 1 ...
Page 19: ...DM240XR High Speed Digital Modulator Theory of Operation TM120 Rev 1 1 3 3 ...
Page 55: ...User Interfaces DM240XR High Speed Digital Modulator 4 36 TM120 Rev 1 1 ...
Page 67: ...Rear Panel Interfaces DM240XR DVB High Speed Digital Modulator 5 12 TM120 Rev 1 1 ...
Page 69: ...Maintenance and Troubleshooting DM240XR High Speed Digital Modulator 6 2 TM120 Rev 1 1 ...
Page 79: ...Technical Specifications DM240XR High Speed Digital Modulator 7 10 TM120 Rev 1 1 ...
Page 103: ...Appendix A DM240XR High Speed Digital Modulator A 24 TM120 Rev 1 1 ...
Page 124: ...DM240XR High Speed Digital Modulator Appendix B TM120 Rev 1 1 B 21 ...