Question about Sony Bravia KDL40HX800 40 in. LCD 3D HDTV

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Panel issues with sony kdl-hx800

One faint vertical band on the left of picture and dark portion to the left of picture; sound and rest of picture OK.

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  • Kennedy Musumba Nov 27, 2012

    The faint vertical band is not thin but thick, around 2 inches wide and somewhat translucent i.e. picture can be seen faintly in that section

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  • Sony Master
  • 933 Answers

That sounds like a defective LCD panel tab connection. Does it go away if you tap the left side of the set? Or does it clear up when the set warms up?

Posted on Nov 27, 2012

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Posted on Jan 02, 2017

vinnyq
  • 157 Answers

SOURCE: sony bravia kdl-52w3000, turn tv on, no picture or

Most likely this is caused by a defective main board. Changing the main board will fix the issue about 95% of the time.

To be absolutely sure, the voltages need to be checked on the power supply. If they are not the values listed in the service manual, then you should replace the power supply instead (accounts for the other 5% of the time).

Posted on Oct 07, 2009

  • 8457 Answers

SOURCE: My Sony Bravia KDL-46Z4500 keeps switching off

Power board have problems.Replaced capcitors puff up or burst open,Know how to solders?Or replaced the whole power board buy refurbish power board at Shopjimmy.com,Ebay.com.

Posted on Jan 22, 2010

tvhelp-Dave
  • 178 Answers

SOURCE: Bravia KDL-46VL130 TV: Our Sony KDL-46VL130 picture is streaking and some...

That symptom may cause by the main board or t-con board, I suggest you do software up grade first.

Posted on May 07, 2010

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These sounds like you have an issue with main board or tcon. Picture slow makes me think this is a communication issue between the tcon and the main board.... This needs a professional diagnostic. The good news is i don't think it is the panel which would make the cost of repair beyond the cost of the tv. If it is in warranty or just out of warranty call sony, sometimes if it is just out of sony's 1 year warranty they will make exceptions. But you need to call them for this exception.
Some solutions are not cut and dried and an on-site diagnostic is best. In your case this is true. I have worked on sony for many years and that symptom (at least the way it is described) is not one I have seen.

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