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A Guide to TracVision L3
4-4
4.1.8 Using a Passive Multiswitch
(North American Systems O nly)
An active multiswitch must always be used to connect the
TracVision L3 system to multiple IRDs. Refer to Section 2.3.6,
"Connecting the Antenna RF Signal Cable to the IRD" for
directions on proper multiswitch/multiple IRD cabling.
4.2 IRD Troubleshooting
The IRD that was provided with your satellite television service
may also be the cause of less-than-ideal operation.
4.2.1 IRD Wiring
Refer to Section 2.3.6, "Connecting the Antenna RF Signal Cable to
the IRD" and your IRD user manual to confirm that the IRD is
properly connected to the Antenna Unit and the television.
4.2.2 IRD Faulty
In the case of a faulty IRD, refer to your IRD user manual for
service, replacement, and warranty information.
4.3 Antenna G yro and LNB Faults
Section 5, "Maintenance," provides detailed instructions for
authorized service personnel who may be required to replace the
TracVision L3 antenna gyro or the LNB.
4.4 Computer Diagnostics
TracVision L3 has been designed to provide diagnostic readouts
viewed on the TV screen (DIRECTV only) or on a personal
computer having an RS-232 serial communication port. If you are
unable to isolate a system problem with the foregoing
troubleshooting tools, set up a laptop to carry out computer
diagnostics as described on the next page. System problems will
most likely be found somewhere through the diagnostic readouts.
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Table of Contents
Troubleshooting
