Troubleshooting And Maintenance; Troubleshooting - Samsung QN65LST9TAFXZA User Manual

08 Troubleshooting and Maintenance

Troubleshooting

If the TV seems to have a problem, first review this list of possible problems and solutions. Alternatively, review the Troubleshooting or
FAQ Section in the e-Manual. If none of the troubleshooting tips apply, please visit "www.samsung.com" and click Support or contact the
Samsung service center listed on the back cover of this manual.
• For detailed information on troubleshooting, watch the troubleshooting videos at www.samsung.com/spsn.
• This TFT LED panel is made up of sub pixels which require sophisticated technology to produce. There may be, however, a few bright
or dark pixels on the screen. These pixels will have no impact on the performance of the product.
• 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 at the bottom of the TV is lit and glowing a solid red.
• Try pressing the TV Controller button at the bottom of the TV to make sure that the problem is not with the remote control. If the TV
turns on, refer to "The remote control does not work."
There is no picture/video/sound, or a distorted picture/video/sound from an external device, or "Weak or No Signal" is
displayed on the TV, or you cannot find a channel.
• Perform a TV self diagnosis to determine if the problem is caused by the TV or the device (
Self Diagnosis > Picture Test or Sound Test).
• If the test results are normal, 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 and confirm that the correct
input source has been selected (
• Reboot the connected devices by unplugging each device's power cord and then plugging it in again. If the issue persists, refer to the
connection guide in the user manual of the connected device.
• If you are not using a cable box or satellite box, and your TV is receiving TV signals from an antenna or a cable wall connector, run Auto
Program to search for channels (
> Source).
> Settings > Broadcasting > Auto Program).
> Settings > Support > Device Care >
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