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4.1.1 Blown Fuse, Low Power, or Wiring
If the Antenna Unit is installed but entirely non-responsive, there
are three key factors to check as part of the troubleshooting
process:
1. Blown Fuse – The Antenna Unit is equipped with
a fuse mounted on its CPU Board. If this fuse has
blown or been broken, the Antenna Unit will not
operate. Refer to Section 5.4, “PCB Removal and
Replacement,” for details on the fuse location and
how to access the CPU Board.
2. Low Power – If the power cable from the Antenna
Unit to the power source is more than 15 m (50 ft),
the power levels can decrease over the course of
the cable, resulting in a voltage level at the
Antenna Unit that is too low to power the system.
Refer to Section 2.3.3, “Connecting to Ship’s Power,”
for details on supplying adequate power to the
Antenna Unit.
3. Wiring – If the system has been improperly wired,
it will prevent the Antenna Unit from operating
correctly. Refer to Section 2.3, “Wiring the TracVision 4
System,” for complete system wiring information.
4.1.2 Satellite Signal Blocked
Satellite signals can be blocked or degraded by buildings, other
vessels, or equipment on the vessel itself. Refer to Section 2.1,
“Choosing the Best Location and Getting the Best Reception,” to make
certain that the TracVision 4 unit is in the optimal location.
4.1.3 Outside Satellite Coverage Zone
TracVision 4 will provide outstanding reception within the
18" (45 cm) antenna coverage area for your satellite television
service of choice. However, signal quality can be degraded as you
approach the fringe coverage areas. Refer to your satellite
television service manual to check the viable coverage area for a
18" (45 cm) antenna.
4-2
A Guide to TracVision 4