Raymarine Satellite TV Systems, Руководство пользователя

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46 Raymarine Satellite TV Systems
1. Blown fuse, low power or wiring
• Check that the in-line quick blow fuse (if fitted) has not blown, or the
circuit breaker has not tripped. Replace fuse with one of the same type
and rating.
• If you have extended the power cable from the antenna unit, check
that there is no power loss.
• Check the system wiring and connections.
2. Satellite signal blocked
Satellite signals can be blocked or degraded by buildings, other boats, or
equipment on your boat. Check that the antenna has a clear view of the
sky.
3. Outside satellite coverage zone
Your system will provide excellent reception within the antenna coverage
area for your satellite television service. However, signal quality may
degrade as you approach the edges of this zone. Refer to “Satellite
coverage areas” on page 49 to check the viable coverage area for your
antenna.
4. Radar interference
The energy levels radiated by radar units can overload the antenna front-
end circuits. Make sure that your antenna is installed as described in “How
do I plan the installation?...” on page 10 of this handbook with regards to
your radar unit.
5. Incorrect or loose RF or power/data connectors
As part of the regular maintenance recommended by Raymarine, all
connections should be checked to ensure that they have not become loose.
A loose RF or power/data connector can reduce signal quality or cause the
antenna not to work.
5. Multi-switch interference
If you have multiple IRD’s connected to your system, make sure that you
are using an ACTIVE not PASSIVE multi-switch.
7. IRD troubleshooting
Your IRD may be the cause of less than ideal operation.
1. Check the IRDs configuration to ensure that it is programmed for the
area in which you are operating.
2. Unplug the IRD from the power supply for 15 seconds. Reconnect and
allow the system to initialize.
8. LNB fault
If you have an LNB fault, it may require replacing. Contact your local
dealer, national distributor or Raymarine Product Support for further
assistance.
81258_3.book Page 46 Wednesday, November 8, 2006 2:06 PM