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Australian Digital Testing's
HDTV Reception Troubleshooting Guide

Some channels display no signal

Received signal may have deteriorated

Check all cables are still in good condition and connections are firmly in place. Check that your antenna arms have not been damaged by weather or birds.
If you have split the antenna input you may now not be receiving enough signal to display all the channels - so disconnect those antenna inputs not in use.

Received signal may be marginal

You will need to contact an antenna installer with a view to upgrading your antenna installation to improve your reception.
See the Digital Switchover Taskforce Antenna Systems for Homes Handbook.

 

 




The set top box or HDTV needs to be "re-booted" & re-scanned

If channels had previously been received with no difficulties, but now the set top box or HDTV is reporting 'no signal', re-boot the HDTV by switching off the HDTV at the power button then unplug at the main power point.
Leave for 15 seconds then plug back in and switch back on again. Re-scan all channels, if necessary.
In some circumstances it may also be necessary to reset the set top box or TV to factory default settings before commencing the rescan.
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