59English05 Other InformationIssues Solutions and ExplanationsThe TV turns off automatically. • Ensure the Sleep Timer is set to Off in the Setup menu (p. 23).• If your PC is connected to the TV, 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 ifthere is no signal.There is no picture/video. • Check cable connections (remove and reconnect all cables connected to the TV and externaldevices).• Set your external device’s (Cable/Sat Box, DVD, Blu-ray etc) video outputs to match the connectionsto the TV input. For example, if an external device’s output is HDMI, it should be connected to anHDMI 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.RF(Cable/Antenna) ConnectionThe TV is not receiving all channels. • 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 Cable TV signal type is set in the menu(p. 14)• Verify the Antenna is positioned correctly.The picture is distorted: macroblock error,small block, dots, pixelization.• Compression of video contents may cause picture distortion, especially with fast moving picturessuch as sports and action movies.• A low signal can cause picture distortion. This is not a TV problem.PC ConnectionA “Mode Not Supported” messageappears.• Set your PC’s output resolution so it match the resolutions supported by the TV (p. 11).“PC” is always shown on the source list,even if a PC is not connected.• This is normal; “PC” is always shown on 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 ConnectionThe 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 (p. 29).• Make sure the TV is connected to a wireless IP sharer (router).Software Upgrade over the network fails. • Try network test in Setup menu (p. 25).• If you have latest SW version, SW upgrade will not proceed.Recording / TimeshiftThe USB device is not recognized or aDevice Format, Checking Device orDevice Performance Test fails.• See the manual for the USB device to check that the USB device supports recording.• If the USB device has a lock, ensure it is off.• Check that the USB device can be formatted when connected to the PC. Connect the USB to the TVand format it. (Formatting may fail intermittently.)• If a Device Performance Test or formatting failed, it means that there is a problem with the USBhardware or the performance of the USB hardware is too low.A message prompts me to format a USBdevice that has been working well.• If the USB device has a lock, ensure it is off.• Recover the USB device using the recovery function in Checking Device.The recording function does not work. • Check that a USB device is connected.• Check that the channel is a recordable digital channel.• If the signal is weak or does not exist, the recording function will automatically be closed.• The TV will not record if the USB device has no free memory space. Check that this is not the case.Timeshift Mode does not work. • Check that a USB device is connected.• Radio channels and analogue broadcasts are not supported.• Data broadcast channels are not supported.• If the signal is weak or does not exist, the Timeshift Mode function will automatically be closed.• Timeshift Mode cannot be performed if the USB device has no free memory space. Check that thisis not the case.A message indicates a performance testfailure, and the recording andTimeshift Mode functions do not work.• These problems may occur if you use a low-capacity USB device that does not support recording.We recommend using the USB HDD.