31
DVB
Troubleshooting
Some Problems will only occur when viewing DVB channels.
Due to the different techniques involved in digital reception, DVB signal quality can be poor even if you appear to have a
strong signal when viewing analogue programmes.
The DVB system requires a good quality signal to provide the best picture. When viewing analogue pictures, interference
such as signal reflection from nearby buildings or mountains causes ‘ghosting’, but still provides a viewable picture. For
the DVB system, Interference such as this can disrupt the flow of data causing the picture to appear to be made up of
large blocks, or to freeze intermittently. If the picture disappears completely, this could mean that signal quality is very
poor. If this happens often, you may need to improve your aerial system to provide a better signal. This TV contains a
complex microprocessor which enables you to view enhanced digital services. Occasionally this device may need to be
reset. This can be done by pressing the stand-by button on your remote control or the power switch on the front panel...
SYMPTOM
CHECKS
No DVB channels listed in the TV Guide after Auto Setup.
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Guide
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Oct
27
2005
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Oct
27
2005
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Check that DVB transmissions are available from the
transmitter you are currently using. If not, try directing
the aerial at another local transmitter.
Check analogue transmissions. If picture quality is poor,
you will need to improve or change your aerial system to
receive DVB channels. Consult a local installer.
Blocky interference.
Picture freezes intermittently.
41 ITV
News
NO
SIGNAL
08:49
Subtitle
OFF
Blocky interference indicates that the signal strength is
poor.
You should consider improving your aerial system.
To check the quality of your signal use the Signal Strength
feature (see page 22).
No picture in digital mode but OK picture in analogue
mode.
No picture in digital mode picture in analogue mode
If no picture only in digital mode, please do Automatic
Tuning again.
