55 inch Samsung curved TV keeps restarting and picture flickering un55ku650dfxza

Рет қаралды 1,778

4 ай бұрын

The Mainboard is usually the fault of any TV that constantly or sometimes starts re-booting by itself. The very first thing to check is to see if the TV backlights are cutting on and off as the tv restarts. If backlights constantly stay on during the rebooting process; then suspect a faulty Mainboard. If backlights cut off and on while tv is rebooting; then suspect a bad Power supply or bad backlights. Then check the standby voltage.
This a Samsung 55 inch curved 4K LED Smart television Model UN55KU650DFXZA. When the TV is first powered ON; the "Smart TV" logo keeps restarting on and off. In some cases the TV will finally boot up but the picture is flickering in certain sections horizontally.
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Advanced Electronics/Television Troubleshooting Course: bigdogtvrepaircourse.mykajabi...

Пікірлер: 21

@incandescentwithrage 4 ай бұрын

Just want to say thanks for the videos. I used to fix TVs at the end of the CRT & start of the CCFL LCD era. Your presentation style is great.

@bigdog8882 4 ай бұрын

Thanks for sharing.

@whizzo55 4 ай бұрын

That was weird! Good to see ya. I really don't care for the curved Tv's. They are a pain in the butt!

@mehdiahmadi2785 4 ай бұрын

Please make a video about the Ticon board and identifying the parts and troubleshooting on it. We are also following your page from Iran

@gonzagaribotti9852 2 ай бұрын

you are really helping me out with my tv repair course

@nightcat87 2 ай бұрын

I got my tv working with your great videos. I thank you for guidance my friend.

@edwardanthony7283 4 ай бұрын

With the TV being that old the main board should be in abundance & inexpensive.

@wisher21uk 4 ай бұрын

Brilliant BD thanks for the upload been a while 😊

@bryandawkins4984 4 ай бұрын

Great info BigDog!👍 Been watching your videos for years!

@bigdog8882 4 ай бұрын

I appreciate that Bryan!

@bryandawkins4984 4 ай бұрын

I was wondering when these mini led TVs start crashing will there be backlight replacements for those bad boys?

@Repiar.electronic.fix.2966 3 ай бұрын

Video good I like Sir 👍

@MagsWorksandHobbies 4 ай бұрын

I think you have a defetive panel

@rosi6144 24 күн бұрын

Hi bigdog, how can i tell the difference between 3v and 6v led's. Hope to hear from you soon, many thanks

@bigdog8882 2 күн бұрын

U have to put voltage across them to light them up or simply use a Backlight tester.

@rosi6144 2 күн бұрын

@@bigdog8882 did it with the tester, Many Thanks

@edwardanthony7283 4 ай бұрын

mainboard issue

@brettking4359 3 ай бұрын

Need help on Roku Element E4AA70R. Tv works great on Home Screen or in tv mode but certain apps causes the back lights to shut down with sound but does have image when flash light is shown on screen. This also happens whenever I switch to Amazon Fire Cube on any HDMI connection or different HDMI cables. When I press home button 5 times, turn tv off then on the tv works fine again on Home Screen or tv mode. ???

@brettking4359 2 ай бұрын

Tv picture setting is in low power mode. Any other setting causes the picture to go black with sound. Need help. Could it be the main board since the leds stay lit in the low power mode but not in any other modes.

@satyashodhaka 4 ай бұрын

Hey I need help with my Vizio tv it turns on i see the Vizio logo for a sec and then goes off. I can only see the image if I flash a light onto the panel. Not sure what the problem is exactly

@KayRenee11 2 ай бұрын

Found you on google and your close by to me. I’m trying to get you to fix my tv but i don’t know a number to reach you. The number on google goes straight to voicemail !