JVC LT-19HA72U Operating Instructions Manual page 27

Troubleshooting table
Symptoms Possible causes
Weak signal or wrong type of
Picture blocking or
aerial.
freezing. Sound breaking
up.
Some channels are
Not receiving one or more
missing.
digital multiplex frequencies.
Interference or other problem
Any or all of the above
caused by passing aerial signal
faults.
through other equipment.
Multiplex
DVB-T (Digital Video Broadcasting - Terrestrial) is broadcast in groups of channels on one
common frequency. This arrangement is known as a Multiplex.
There are several multiplexes in the DVB-T system, each carrying a group of channels.
If the signal level on a particular multiplex frequency is poor you may lose the whole group
of channels on that multiplex.
Digital Terrestrial TV Troubleshooter
What to do
Try re-tuning.
Aerial may not be suitable for digital TV broadcasts.
You may be in a place which does not get a good digital TV
signal.
Get an aerial rigger to check the aerial system.
Try connecting the aerial directly to the digital TV receiver
and then re-tuning.
If some equipment has a radio frequency modulator, switch
it off or change the frequency of it and re-tune the analogue
TV. (Please see other equipments instructions for how to
do this.)
EN
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