T+A DD 820 M - Page 62

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Problem: Picture unstable.
Cause:
Synchronisation signal absent.
Remedy:
Push connector in firmly, or set television to
'AV operation' mode.
Problem: Monochrome picture only.
Cause:
Incompatible picture norms set on the TV,
the decoder and the source device.
Remedy:
Set TV, decoder and source device to the
same picture norm.
Note:
If problems persist, set the decoder to the
'RGB / Video' norm; select the picture norm
'Video', occasionally also termed 'FBAS',
'CVBS' or 'Composite', on the TV set and
the source device.
Problem: When playing an NTSC-DVD the on-
screen menu is distorted.
Cause:
The TV set does not feature automatic
format detection for NTSC, and has been
set manually to NTSC. The decoder’s on-
screen menus are only generated in PAL
format, so this operation is not possible.
Remedy:
Use a TV set with automatic PAL / NTSC
format switching, or use the decoder’s
integral screen.
Problem: Picture correct, but no sound audible
through the decoder.
Cause 1:
No sound connection between source
device and decoder.
Remedy:
Complete the sound connection (analogue
or digital depending on mode); see section
entitled 'Installation, Using the unit for
the first time, Safety notes'.
Cause 2:
No sound input, or the wrong sound input,
has been assigned to the picture input in
the 'Source Setup'.
Remedy:
Check the sound input to which the source
device is connected. Call up the 'Source
Setup' and carry out the correct
assignment.
Cause 3:
The loudspeaker is switched off.
Remedy 1:
Switch on the loudspeaker using the


 button.
Remedy 2:
Check that the decoder has not switched
itself off due to overheating or a short-circuit
in the loudspeaker connection.
Problem: When you switch television
programmes, you hear unwanted noise.
Cause:
The television set is not capable of muting
(silencing) the SCART audio outputs.
Remedy:
Use the Cinch/sound outputs of the TV set
(if present) instead of the SCART sound
output.
Problem: Decoder switches off after a certain
period of operation.
Cause:
Unit is overheating.
Remedy:
Make sure that the cooling airflow is
adequate; reduce volume if necessary.