Question about Sharp LC-19SB14U 19 in. LCD TV

1 Answer

Tv will not start after power surge

Sharp tv will not start after power surge ( no power indicator light),
How do I test the power suppy board,main board, etc for replacement?
PS -qpwbfe333wjn2,qpxbxe367wjn1,qpwbfe241wjn1
I have a digital multimeter to check outputs. Is there a most likely component or circuit breaker that goes first?
Thanks for any help or recommended repair service contacts.

Posted by on

  • rhbak1 Jun 30, 2010

    budmrtn,
    How do I make photo attachments for posting with my service question?
    rhbak1@yahoo.com

  • rhbak1 Jul 13, 2010

    Bud helped me determine that my Power Supply was not working even after the main fuse was replaced.

    IMPORTANT: I found some power supply boards available for Sharp model number LC19SB25U but not for my Sharp LC19SB14U. Visually PS looked the same,so took a chance by ordering one and found it to be an exact match except for the style of the main fuse!

    Mission accomplished - Tv restored - and is now connected to a surge suppressor - lesson learned!

    Thanks Budmrtn

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  • Master
  • 11,361 Answers

Voltage checking and caps inspection will be the first thing to do.
If you can post the pictures, that will help a lot. Look at the inverter board to see if you are getting 12~18vdc feeding it, also look for caps with leaking/bulging top.
See some pictures here:
http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague

Posted on Jun 29, 2010

Testimonial: "Example pictures quite helpful. I do some more visual checks and then post pictures of my power supply and ask for test locations. Thanks"

  • Bud Martin
    Bud Martin Jun 30, 2010

    Send pictures to my email instead, budmrtn@aol.com.

    To post picture at FIXYA, you use the TREE looking icon on the post sending box, but it is limit to 150k resolution.

  • Bud Martin
    Bud Martin Jul 01, 2010




    Check the MAIN AC fuse (red block) by the AC inlet.

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1 Suggested Answer

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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