Question about Hisense Televison & Video

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I have a hisense tv Model # LTDN42V77US I have sound but no picture. When I check for backlight, I can see some for only a couple of seconds, then they go out. Is that my problem? (backlight)

Posted by Stan Roberts on

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City View TV & Computer, Inc.

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  • Hisense Master
  • 450 Answers

It is a common problem for the Hisense TV, the problem is defective back lights ASSY, you need to find the burned, or shorted LED diodes on the defective strips & replaced it (them).

Posted on Nov 01, 2017

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5 Related Answers

Anonymous

  • 106 Answers

SOURCE: lcd tv backlight prob

You need to replace the inverter board if you can find the spare part. Otherwise you need to replace the whole lcd panel.

Posted on Jan 01, 2008

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Anonymous

  • 105 Answers

SOURCE: Has sound,picture only comes on for a couple seconds at start up.

This is a Backlight Bulb or Inverter (power supply for backlight) failure.
If in warranty, take it to service
You can try to order an Inverter, or if needed you can get a replacement bulb (not easily available)

Posted on May 18, 2009

Anonymous

  • 1 Answer

SOURCE: Hisense TV No picture only Sound

I have the same problem...please assist

Posted on May 10, 2010

budmrtn

Bud Martin

  • 11361 Answers

SOURCE: Toshiba 22LV505 TV-DVD:

Check the DC filter caps in the power supply first. Check the 24vdc (or 18vdc for this 22" model) to see if it goes away when the screen goes black.
There are main AC fuse, backlight inverter fuses, T-CON fuses.
If you are going to DIY and have proper tools and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

http://s807.photobucket.com/home/budm/allalbums

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

Parts: www.shopjimmy.com

Posted on Jul 08, 2010

dduncan774

David Duncan

  • 760 Answers

SOURCE: My hisense 50 inch lcd tv has picture but no sound.

If you still have back light, then the T-con is probably defective. If you don't have back light, then you either have a bad power board/inverter or a defective panel

Posted on Mar 20, 2013

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HelloCheck the backlight inverter board. If it has damged, most common fault to LCD TVs, there will be no backlight to the LCD screen, and will look black. Your tV has sound output without picture. This means that all other boards ar functioning well. Check the backlight inverter section and CCFL tubes used in backlight assembly. OK.
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What does it mean when the picture goes out?

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There are so many reasons for picture to gets out. The first amoung them, is of its backlight itself. If the backlight CCFL tubes wont light up, there will be no backlight to illuminate the picture. If baclkight inverter board has damaged, backlight CCFL lamps won't light up. The most common fault with LCD TVs are backlight failure itself. The second one is of with its main video processor board. In short, main board itself. You have to check and make sure which one is faulty. You must ahve sound knoledge in electronics to proceed. OK.
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