Can I fix an Onn Roku TV (58 inch) No Display 

Thank you very much for this very helpful video. My 65 inch onn TV started working again. There was only one difference, when I disconnected the ribbon cable on the right side, half of the screen turned white, and when I disconnected the left side from the T-con, nothing happened. In video, you had at least half the picture. Desperately, I started trial and error with tape and randomly covering a series of connectors on the right ribbon cable until I saw the complete image, but the quality was not good, and lines were also visible, and the light on the upper left corner of the screen was increasing and decreasing. . In short, I think that I only covered the connector number 15 or 16, the picture came back great and now the TV is working without any problems.

Thank you same problem and after process of elimination with the tape trick I just needed to cover the first pin for the clock check with tape and got the best clear no lines perfect picture, thank you for this detailed diagnosis.

My whole screen did not work and I did the same thing and it worked I appreciate it man

Did this tap trick and it caught on fire 😂 well that confirms I need a new tv haha

Your resets will return your volume all the way down so you can't even hear the menu navigation beeps. Just use your remote and turn the volume all the way back up.

This video helped! Tried the tape trick through trial and error but nothing worked, i ended up taking tape off and unplugging and plugging back in both sides of the connections and voila it works again! Still dont understand it lol

Actually you have a bad power board, yes turns on but it has a short somewhere and won't show the picture, seen this many times with these models.

Thanks 😊 This worked for my tv. 👍🏽

Thank you for this video I’m trying to fix my tv, my brother came over and the screen turned white while he watched a movie 😂

I've taken the back off of all my TVs and drilled holes and installed a noctua NF-A14 140mm 5v fan. Some on Amazon come with a usb adapter. Most TVs have atleast one 5v 0.5amp USB output. You plug the fan into the TVs USB port. You dont have to get noctua you can get AC infinity they come with USB. Literally have never had a TV issue. 99% of TV issues is overheating components.

Worked perfectly❤

How do I know which part I need. My tv is a 55” onn Roku tv.

This actually worked !

Keep up the great work

You never said where you got the part from

Also if this were in my area people would have been asking like $200 for this TV in the non working condition.

Tv is flickering

check power board for bad capacitors (bulging top) dont buy a new board just swap out the capacitor.

It’s the power board

Exelent

CVK short

Mean, I like your video but you talk so fast and so much that I couldn’t catch it all why don’t you just get straight to the point thanks

Those cheap Walmart brands tvs are a pice of shit