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Universal 32″ TV Wouldn’t ‘Power On’

By on July 8, 2023
Universal 32" Tv Wouldn't 'Power On'






how to repair a broken led tv

This TV was brought to me with complaints of not powering on. This TV had been repaired by me before (see article 23/2/22). I opened the back case, did physical observation, no sign of any faulty components, so l did voltages test on the combo mother board at various points, these were present: 12V, 5V, 19V, 3.3V, 12V,1.16, but 1.8V was absent.

So I checked on mosfet responsible for switching on 5V to voltage regulator, which in turn generate 1.8V, this fet was good. So I suspected voltage regulator may be faulty, I replaced the 8 pins voltage regulator with a new one.

bad ic in led tv

bad voltage regulator ic

Then assembled everything together and powered on tv set: wowed it came on beautifully.

This’s the finished repaired work.

how to fix a broken led tv

imoudu onwuwah

This article was prepared for you by Imoudu Onwumah from Nigeria. He is 62 years old and has just 3 years experience in electronics repairs. I started career in hotel industry as a chef, but then I was doing repairs only in electrical repairs as a hobbyist. In 2018, I decided to learn about electronics which through Jestine’s electronics e-books and holding my hand, am an electronics techie today.

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Note: You can read his previous article on TV Power Buttons Got Stuck



  1. Andrew F. Ali

    July 8, 2023 at 9:30 am

    Excellent job!!!

  2. Parasuraman S

    July 8, 2023 at 9:48 am

    Excellent expert fix! Thanks for sharing!

  3. Albert van Bemmelen

    July 8, 2023 at 3:04 pm

    I checked all articles about this tv to find out what 8 pins power regulator chip exactly was replaced but sadly the photos were too blurry and the type was neither mentioned here?

  4. Tito Kanshulu

    July 8, 2023 at 8:29 pm

    Excellent job Sir, but you didn't give us the exact number of the regulator.

  5. Yogesh Panchal

    July 9, 2023 at 12:11 am

    Good fix! Looks like Mosfet Driver which provide gate drive to the MosFet.

  6. Waleed Rishmawi

    July 9, 2023 at 12:46 am

    Short and to the point but totally agree with Albert, the part number should be mentioned in the article. Have a blessed day.

  7. Imoudu.O

    July 9, 2023 at 3:12 am

    Thanks for your comments,have a nice day

  8. Imoudu.O

    July 9, 2023 at 3:51 am

    Mr Parasuraman.S
    Thanks for your comments,have a nice day sir.

  9. Imoudu.O

    July 9, 2023 at 3:52 am

    Andrew Ali
    Appreciate your comments,have a nice day.

  10. Imoudu.O

    July 9, 2023 at 3:59 am

    Mr Albert Van
    Appreciate your observation,the power regulator chip no is 1118 marked on it,you can also find it's datasheet on net,however not all combo tv mother board uses this chip.Have a nice day.

    • Albert van Bemmelen

      July 12, 2023 at 11:14 pm

      Thanks Imoudu for providing that information!
      Not a controller chip I knew of. Good to know. I will look for that datasheet.
      It strangely wasn't mentioned in the previous articles of this tv before either, why I asked.
      Have a nice day too!

  11. Imoudu.O

    July 9, 2023 at 8:19 pm

    Tito and others
    My answer to Mr Albert's comments fixes all comments regarding the voltage regulator.Have a nice day all.


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