Samsung LE19D450G1W E-Manual page 185

Issues
There is no picture/
video.
◀
Solutions❑and❑Explanations
●
Check cable connections (remove and reconnect all
cables connected to the TV and external devices).
●
Set your external devices' (Cable/Set top Box, DVD,
Blu-ray etc) video outputs to match the connections to
the TV input. For example, if an external device's output
is HDMI, it should be connected to an HDMI input on
the TV.
●
Make sure your connected devices are powered on.
●
Be sure to select the TV's correct source by pressing the
SOURCE button on the TV remote.
●
Reboot the connected device by reconnecting the
device's power cable.
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