Question about Flat Panel Televisions

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DIBOSS tv shows no picture

My tv does not show a picture (black picture only, sound works fine) however when you step through the AV channnels, etc and get back to the tv screen the picture does appear for 2 seconds and then goes black, (so it doesn't seem to be a problem with the display but the signal link to the display??). It did correct itself recently for about 20 minutes but went black again.


Regards
Iain B

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  • 3 more comments 
  • Anonymous Mar 13, 2008

    I have got exatly the same problem with this device.

  • Anonymous Sep 08, 2008

    I have the same problem to but my screen stays black no mater what i try but the sound works fine! I cant even reach the menu or do anything ells!

  • nerina_m Oct 21, 2008

    Exactly the same problem occurred yesterday with my four year old Diboss tv. We got glimpses of a picture then nothing, but the sound is still fine - I'm wondering whether it's economically repairable or if we should just give up and get a new one.

  • Anonymous Dec 13, 2008

    Screeen goes black, stays on for a couple of minutes, when chganging channels it can go on, but problem has grown worse and now only pic for a few sec's, sound is fine.

  • Anonymous Mar 23, 2014

    it is a 3d tv also

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1 Answer

Me too! Apparently Diboss are no longer trading, so no help there. I am aware that these panels have a common power supply issue, the faulty chip is only available from China and the last one I fitted only lastest a couple of days. However the fault described above is not the same. I've checked the psu outputs; all are fine and nothing changes when the picture disappears, therefore I can assume that I'm not looking at a PSU fault. As Iain says above, it appears to be a signal link, however I have no picture on ANY input and without circuit diagrams I cannot find any component that's common to all the various inputs. This leads me to think that either the backlight, or the screen itself is faulty. I'll keep trying and if I get it sorted I will report back.

Jon

Posted on Sep 24, 2008

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