Sharp TU-TV322H DVR User Manual


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Reception problems
When you purchased your DTR, your dealer should have checked your postcode to ensure
that you can receive digital terrestrial TV. If you wish to check this yourself, please look on
the internet websites:- www.freeview.co.uk or www.digitaluk.co.uk
Once you have established that your area should be able to receive digital terrestrial TV,
there are a few reasons why you may be experiencing problems.
• Yourcurrentaerialandcablingmaynotbeabletoreceiveallthedigital
channels due to its age and condition. Now is the time to renew them. We
recommend the use of CAI “Benchmarked” aerials. Look for the logo.
Always use good quality, double screened aerial cable. e.g. CT100 coaxial
cable.
• Inyourlocationthedigitalchannelsmaybetransmittedondierentfrequenciestoyour
existing analogue signals and you may need a dierent type of aerial to receive them.
Check the ‘group’ of your aerial, you may need a ‘wideband’ one.
• Thenewdigitalchannelsmaybetransmittedfromanewtransmitterandifthisisthe
case the aerial would have to be re-aligned. Alternatively, add a second aerial to your
system.
• Ifyouneedtouseamast-headamplier,makesurethatitisadigitallycompatibleone
and that it is as close to the aerial as possible.
• Insomeblocksofats,ltersmaybeinusethatwillinterferewithdigitalsignals.Consult
with your landlord if you have diculties.
• Indoororwindowmountedaerialsarenotrecommended,exceptinareaswherethe
signal is extremely strong.
• Youraerialcouldbetoohigh.Tryadjustingtheheightoftheaerialtoavoidpickingup
unwanted signals from other transmitters.
• Ifyouliveneararoad,thepassingtracmaycauseproblems.Trypointingtheaerialat
an upward angle over the road, this helps reduce engine interference picked up by the
aerial.
• Ifyougetperiodicpicturelosses,thiscouldbeduetoelectricalinterferencepickedup
in your house. This could be from a central heating thermostat, a fridge/freezer, or any
other item with a motor. Try switching these appliances o temporarily to establish what
is causing the problem. Then replace the problem item.
• Ifyouraerialcomesintoyourroomviaanaerialconnectionpoint(socket),replaceitwith
a good quality shielded one. This will help prevent electrical noise entering your aerial.
Standard
Troubleshooting
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