Samsung LN40C550 User Manual page 44

Other Information
The TV won't turn on.
The TV turns off automatically.
There is no picture/video
The TV is not receiving all channels.
No Caption on digital channels.
The picture is distorted: macroblock,
error, small block, dots, pixelization.
A "Not Supported Mode" message
appears.
"PC" is always shown on the source list,
even if a PC is not connected.
The video is OK but there is no audio.
The wireless network connection failed.
Software Upgrade over the network
fails.
• Make sure the AC power cord is securely plugged into the wall outlet and the TV.
• Make sure the wall outlet is working.
• Try pressing the POWER button on the TV to make sure the problem is not the remote.
If the TV turns on, refer to 'Remote control does not work' below.
• Ensure the Sleep Timer is set to Off in the Setup menu. (R 18)
• If your PC is connected to the T_, check your PC power settings.
• Make sure the AC power cord is plugged in securely to the wall outlet and the TV.
• When watching TV from an antenna or cable connection, the TV will turn off after 10 - 15
minutes if there is no signal.
• Check cable connections. (remove and reconnect all cables connected to the TV and external
devices).
• Set your external device's (CabldSat 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 remote
control.
• Reboot the connected device by reconnecting the device's power cable.
• Make sure the coaxial cable is connected securely.
,, Please try Auto Program to add available channels to the channel list. go to MENU - Channel
- Auto Program then select Auto and make sure the correct (}able TV signal type is set in the
menu. There are 3 options. (STD, HRC and IRC) (R 12)
,, Verify the Antenna is positioned correctly.
,, Check Caption Setup menu. Try changing Caption Mode Service 1 to OO1. (R 20)
,_ Some channels may not have caption data.
,, Compression of video contents may cause picture distortion, especially on fast moving pictures
such as sports and action movies.
,, A low signal can cause picture distortion. This is not a TV problem.
,, Set your PC's output resolution so it matches the resolutions supported by the TV.
,, This is normal; "PC" is always shown on the source list, regardless of whether a PC is
connected.
,, If you are using a HDMI connection, check the audio output setting on your PC.
,, Samsung Wireless USB dongb is required to use a wireless network.
,, Make sure the Network Connection is set to Wireless. (R 25)
• Make sure the TV is connected to a wireless IP sharer (Router).
,, Try network test in Setup menu. (R 26)
,, If you have latest SW version, SW upgrade will not proceed.
4 English
BNdS-02d04A Eng.indb 44 2010-02-10 _C 8:19:32