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My Sharp Roku TV model LC-50LB371U Has no picture, no audio. When I shine a flashlight on it, I can read "Comencemos"

I have tried changing all of the inputs and it is the same on all of them. I cannot get see the menu with the flashlight.

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  • 225 Answers

It means "lets start" in Spanish, but you might want to change/check the LCD backlight & inverter first. ;-)
Good luck.

Posted on Nov 24, 2017

  • Walton Walker
    Walton Walker Nov 24, 2017

    Thank you!

  • Larry Nov 24, 2017

    If your able, test the voltages from the power board and see if they are correct, this is a LED set so there won't be an inverter board in it so that won't be the problem with the TV



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Posted on Jan 02, 2017



  • 208 Answers

SOURCE: No Video on Sharp Aquos LC-46D62U

Have you check all inputs as the HDMI inputs and the composit inputs are processed on a different bd?

Posted on Feb 26, 2008


  • 53 Answers

SOURCE: no sound

When you turn the tv on, do you hear a faint “pop” noise from the speaker? If so, the problem is with the heat sink under the audio IC. Over time, the heat sink will lose its consistency and start to melt, thus shorting out the audio circuit. To fix, you’d need to clean off the melted residue on both sides of the audio IC as well as replacing the heat sink with a newly redesigned Sharp Heat Insulation Pad. It’s a pretty complicated fix, I suggest calling your local authorized sharp service center to fix this problem. The part is inexpensive, so you’re most likely looking at a labor charge (maybe around $200ish) for the repair if they are not marking up the price too much.

Posted on Mar 14, 2008


Lee Klabbers

  • 14 Answers

SOURCE: brand new sharp aquos LC-52D65U no picture

Sounds like a over heating issue, try unplugging the unit and leave it for an hour , before you reboot. make sure there is some kind of ventilation in place . Also double check your connections very important.

Posted on Apr 12, 2009


  • 1077 Answers

SOURCE: My Sharp TV will only hear sound. No picture or images even from the tv menu setup option. Model# LC-19SB25U. About 1.5 yrs old. Converter box ok.

In most cases, you can reset the TV by leaving it unplugged for 30mins.
If this doesn't work, I believe the circuit board that supplies power to the screen maybe bad. They call this board a backlight inverter board. It would most likely cost more to repair than replace the TV .

Posted on May 27, 2009


  • 1 Answer

SOURCE: trying to hook my roku box to my sharp aquos 46 in using my hdmi

according to roku support hdmi won't work with the aquos as of today (1/6/2010). i have no idea if it's an hdcp issue or not

Posted on Jan 07, 2010

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