4 Troubleshooting
The troubleshooting matrix shown in Figure 4-1 identifies some
trouble symptoms, their possible causes, and reference to
troubleshooting solutions.
4.1 Causes and Remedies for
Common Operational Issues
There are a number of common issues that can affect the signal
reception quality or the operation of the TracVision 4. The
following sections address these issues and potential solutions.
4-1
Troubleshooting
54-0150 Rev. D
Figure 4-1
Troubleshooting Matrix
Antenna non-functional X
No picture on TV set X X X X
Intermittent picture for short intervals XXXXXX XX
System works at dock but not underway X X
System will not find satellite XXXXXXX X
Snowy television picture X
Outside satellite coverage zone (Section 4.1.3)
Antenna gyro faulty (Section 4.3)
LNB assembly faulty (Section 4.3)
Satellite signal blocked (Section 4.1.2)
Incorrect or loose RF connectors (Section 4.1.6)
Passive multiswitch used (Section 4.1.6)
POSSIBLE CAUSE (AND SOLUTION)
SYMPTOM
Vessel turning during startup (Section 4.1.5)
EchoStar IRD commissioning (Section 4.2)
Radar interference (Section 4.1.4)
Blown fuse, low power, or wiring (Section 4.1.1)
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