Samsung LN22D450G1F E-Manual page 190

Issues
The video is OK but
there is no audio.
Network Connection
The wireless network
connection failed.
◀
Solutions and Explanations
●
If you are using an HDMI connection, check the audio
output setting on your PC.
for LCD 550 series
●
The Samsung Wireless USB dongle is required to use a
wireless network.
●
Make sure the network connection is set to
(General).
●
Make sure the TV is connected to a wireless IP sharer
(router).
English
Wireless
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