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Samsung UN40KU7000 User Manual Page 7

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4. Troubleshooting and Maintenance
If the TV seems to have a problem, first review this list of possible problems and solutions. Alternatively, review the
Troubleshooting Section in thee-Manual. If none of the troubleshooting tips apply, visit
or call Samsung Customer Service at l-800-SAMSUNG (l-800-726-7864).
[lJ For detailed information on troubleshooting, watch the troubleshooting videos at
[lJ This TFT LED panel is made up of sub pixels which require sophisticated technology to produce. There may be, how-
ever, a few bright or dark pixels on the screen. These pixels will have no impact on the performance of the product.
[lJ To keep your TV in optimum condition, upgrade to the latest software. Use the Update now or Auto Update functions
on the TV's menu
>®Settings> Support> Software Update> Update now or Auto Update).
The TV won't turn on.
Make sure that the AC power cord is securely plugged in to the TV and the wall outlet.
Make sure that the wall outlet is working and the power indicator on the TV is lit and glowing a solid red.
Try pressing the Power button on the TV to make sure that the problem is not with the remote control. If the TV turns
on, refer to "Remote control does not work" below.
There is no picture/video/sound or distorted picture/video/sound from an external device
or{(Weak or No Signal" is displayed on the TV or cannot find channel.
Make sure the connection to the device is correct and that all cables are fully inserted.
Remove and reconnect all cables connected to the TV and the external devices. Try new cables if possible.
Confirm that the correct input source has been selected
Perform a TV self diagnosis to determine if the problem is caused by the TV or the device
>®Settings> Support
>Self Diagnosis> Start Picture Test or Start Sound Test).
If the test results are normal, reboot the connected devices by unplugging each device's power cord and then plug-
ging it in again. If the issue persists, refer to the connection guide in the user manual of the connected device.
If the TV is not connected to a cable or satellite box, run Auto Program to search for channels
Broadcasting >Auto Program).
The remote control does not work.
Check if the power indicator on the TV blinks when you press the remote's Power button. If it does not, replace the
remote control's batteries.
Make sure that the batteries are installed with their poles(+/-} in the correct direction.
Try pointing the remote directly at the TV from 5 ft. to 6ft. (1.5-1.8 m) away.
If your TV came with a Samsung Smart Remote (Bluetooth Remote), make sure to pair the remote to the TV. (Please
refer to thee-Manual.)
The cable or satellite box remote control doesn't turn the TV on or off or adjust the vol-
Program the cable or satellite box remote control to operate the TV. Refer to the cable or satellite box user manual
for the SAMSUNG TV code.


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