Samsung UN40D6420UFXZA - Manual (Page 296)

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Issues Solutions and Explanations
PC Connection
A “Mode Not Supported”
message appears.
• Set your PC’s output resolution so it matches a resolution supported
by the TV.
“PC” is always shown on the
source list, even if a PC is not
connected.
• This is normal. “PC” is always shown in the source list, regardless of
whether a PC is connected.
The video is OK but there is no
audio.
• If you are using an HDMI connection, check the audio output setting
on your PC.
Network Connection
The wireless network connection
failed.
• The Samsung Wireless USB dongle is required to use a wireless
network.
• Make sure the Network Connection is set to Wireless .
• Make sure the TV is connected to a wireless IP sharer (router).
Software Upgrade over the
network fails.
• Run Network Test in Network menu to confirm the connection.
• If you have latest Software (SW) version, SW upgrade will not
proceed.