Philips HDT8520 Manual page 39

You cannot find all the channels you think
should be available even after retuning
your HD recorder.
• The missing channels may not be available
in your area. Check your coverage on the
Freeview website: www.freeview.co.uk.
• Your antenna may need to be upgraded
(signal power, position, orientation or cabling).
• A signal booster may be fitted on your
antenna. Consider having this removed as
amplifiers are normally not required after
the digital switch over. Too high a signal level
can cause your HD recorder to skip some
channels.
• Some early digital receivers manufactured
prior to 2004 support only the 2K mode
of digital transmissions. As part of the
digital switch over, the UK Freeview TV
platform will be upgraded to a more robust
transmission standard. The change in
transmission standard has been authorised
by OFCOM and the new standard is
supported by products that have the "Digital
Tick".
• If you have a SKY box, switch it to standby
mode and then retune the terrestrial
receiver. If it then receives all expected
Freeview channels, then the modulator
needs adjusting on your Sky box. Contact
Sky to find out how to adjust the modulator.
Your HD recorder found all the expected
channels after you retuned it. However,
when you turned on your HD recorder
the next day, the picture was breaking up
and some channels were missing.
Your HD recorder has an automatic retuning
feature; this allows it to keep up to date with
minor service changes. However, when the signal
level of nearby relay transmitters are high or
if the antenna signal is being amplified, these
problems can occur.
To solve this problem:
• Turn off the automatic channel updates
feature of your HD recorder (see page 32).
Frequently asked questions
• Remove any signal amplifiers or boosters
that are fitted on your antenna. These are
not required after the digital switch over.
• Check that your antenna is aligned properly
and is a model adapted for digital signal
reception in your area. If you are not sure,
please use the services of a recognised CAI
antenna installation company.
You set a recording but your HD recorder
did not record what you wanted.
Check the TV guide or the Recordings menu
to see if an alternate instance of the programme
was automatically selected due to a conflict.
Your hard disk is full with protected
recordings.
Remove the protection on your recordings so
that your HD recorder can automatically free
up some disk space by erasing the recorded
programmes.
Although you set Audio capabilities to
"Auto" for HDMI or "Dolby Digital" for
S/PDIF, your HD recorder does not deliver
Dolby Digital 5.1 multi-channel audio
output.
• Your HD recorder needs a software
upgrade.
• Visit www.philips.com/support regularly
to check if the appropriate software for
ugrading your HD recorder via USB is
available.
• Set the Audio capabilities setting to PCM
until the upgrade of your HD recorder is
done.
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