No Power In Toshiba LED TV Repaired

By on August 11, 2015



led tv repair

 

 

 

 

 

 

 

 

 

 

 

 

 

led tv repairing

 

The complaint of this Toshiba LED TV was no power. The first thing to do is to unscrew it and remove the cover.

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Once the cover was removed, the first component I checked was the main fuse.

I found it to be open circuit. I continued to check on the surrounding components which include the power IC, Diodes, resistors and there was no short circuit found-see the photos below:

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Since there was no other bad components found so I had to connect  a light bulb across the main fuse holder. I can actually solder it from behind the fuse terminal but soldering in front is easy for you to see.

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Power was applied and the bulb lighted up for a while then went dim which was a good sign of no shorted components in the power board.

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I then put in a new main fuse and connected the power board to the mainboard and powered On, I could see the display-see the result below:

led tv repairs

If you want to know more about LED and LCD TV repair, you can visit the links below:

http://www.jestineyong.com/repairing-guides-by-kent/

http://www.jestineyong.com/repairing-guides-by-damon-morrow/

suranga

This article was prepared for you by Suranga Bandara who owns an Electronics shop in Anuradapura, Sri Lanka.

Please give a support by clicking on the social buttons below. Your feedback on the post is welcome. Please leave it in the comments.

P.S-  If you enjoyed reading this, click here to subscribe to my blog (free subscription). That way, you’ll never miss a post. You can also forward this website link to your friends and colleagues-thanks!

 

You can read his previous article in the link below:

http://www.jestineyong.com/souer-ac-inverter-repaired/

Likes(191)Dislikes(2)





19 Comments

  1. Martin

    August 11, 2015 at 6:07 pm

    Well done.
    I only wish that my TV repairing adventures could be as simple and straight forward as this. 🙂

    Likes(6)Dislikes(0)
  2. Allan

    August 11, 2015 at 6:47 pm

    A real quick fix, but I full heartedly agree with Martin's comment. Great stuff Suranga!!!

    Likes(3)Dislikes(2)
  3. Tyrone

    August 11, 2015 at 7:11 pm

    It not very often that repair adventures are this simple and straight forward therefore when they come it is quite welcomed.

    Likes(2)Dislikes(0)
  4. KYBOSH

    August 11, 2015 at 7:43 pm

    So what was the problem? A bad main fuse? I thought that was the first thing that was tested ...

    Likes(3)Dislikes(0)
    • Humberto

      August 14, 2015 at 11:46 pm

      Hi, the fuse was maybe blown due to lifespam

      Likes(0)Dislikes(2)
  5. KYBOSH

    August 11, 2015 at 7:48 pm

    … Sorry I just saw that the fuse was open. Good job looking for faulty components that might have caused the blown fuse!

    Likes(0)Dislikes(0)
  6. Mark Tembo

    August 11, 2015 at 9:50 pm

    Thanks, the article has been well-prepared.

    Likes(0)Dislikes(0)
  7. bijoy

    August 11, 2015 at 11:10 pm

    Very good.bijoy India Kerala.

    Likes(1)Dislikes(0)
  8. Robert Calk

    August 11, 2015 at 11:31 pm

    Good job, Suranga. If you put croc clips on the wires of your light bulb, you can just clip them on the fuse holders and not need to solder them.

    Likes(7)Dislikes(0)
  9. Yogesh Panchal

    August 12, 2015 at 12:24 am

    Congratulations! for quick fix.

    Likes(2)Dislikes(0)
  10. reza

    August 12, 2015 at 12:13 pm

    hi Suranga
    very good

    Likes(2)Dislikes(0)
  11. carlos a ortega

    August 13, 2015 at 8:27 am

    well done, but a good test is to check amperes draw by the tv set and compare with the label on the set.

    Likes(3)Dislikes(0)
  12. CHRISSY

    August 13, 2015 at 2:36 pm

    Thanks for dis knowledge ....... it plays a major role in my life.

    Likes(0)Dislikes(0)
  13. mustabz

    August 13, 2015 at 8:14 pm

    some one please advise me how i can get LD1117 regulator to kla with no hussle?
    am stuck witha venus 32" cant get out of standby mode.

    Likes(2)Dislikes(1)
  14. Aziz

    August 13, 2015 at 8:32 pm

    Dear Mr.Yong
    hello and thanks for all useful electronic articles repairing guides
    you are one of the best instructors in the world, God bless you
    sincerely yours
    Aziz

    Likes(2)Dislikes(0)
    • Jestine Yong

      August 14, 2015 at 7:00 am

      HI Aziz,

      You are welcome and need to thanks to those who have contributed the articles too.

      Jestine

      Likes(5)Dislikes(0)
  15. Humberto

    August 14, 2015 at 11:49 pm

    Simple repair, but anyway it's another device saved from the dump.

    Likes(3)Dislikes(1)
  16. farhad rigi

    August 18, 2015 at 12:22 pm

    thank you

    Likes(0)Dislikes(0)
  17. paul

    November 16, 2015 at 4:07 pm

    Pls sir I want to learn laptop repairs

    Likes(0)Dislikes(1)

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