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Troubleshooting
Help and advice
If you have difficulties using your set-top box and none of the suggestions below work,
try switching your set-top box off at the mains, and then back on again. If this does not
work, contact the shop you bought your set-top box from or a qualified repair technician.
Never try to repair your set-top box yourself.
Please make sure you know the model number of your set-top box before contacting us.
The model number is printed on the label on the underneath of the set-top box main unit.
Problem What might be causing the problem
The ‘Standby’ light is
not lit.
The mains lead either unplugged or the fuse in the mains plug
has blown.
You cannot get a
signal on your set-top
box.
The aerial is not connected. The aerial is damaged or pointing
in the wrong direction. You are not in an area which can
receive a digital signal for the set-top box.
You cannot get a
picture or any sound.
Your TV is set to the wrong AV channel. Check the channel
you are using. Your set-top box may be set to digital teletext
mode. You may get an encrypted channel message. You
have to pay to watch this channel. The signal is encoded
(encrypted) so that only authorised equipment can receive it.
Your set-top box is
not responding to the
remote control.
The set-top box is switched off or you are not pointing the
remote control at the set-top box properly. There might be
something in front of the front panel on the set-top box. You
may have put the batteries in the remote control the wrong
way round or you may need new batteries.
The picture is made
up of square blocks or
it freezes still.
The aerial may not be the right type for the set-top box. It may
be damaged or pointing in the wrong direction.
You can only find
some of the channels
on your set-top box.
You have your favourites selected. Check your ‘Channel list’.
Goodmans GDB20TTS_Instruction Manual.indb 73 6/15/2010 4:26:53 PM