Question about Samsung LE40R74BDX 40 in. LCD Television

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After about ten minutes the picture goes blank but

Samsung LE40R74BDx . After about ten minutes the picture goes blank but the sound is ok. The tv is about 3 years old

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  • khenryashley Sep 30, 2009

    Have phoned local repair shops and one has said the invertor is the problem and he other said its is the psu.
    All want at least £100 labour plus parts.
    I have taken the back off and and removed the psu. Going to replace it myself. Replacement psu £87 online.

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If you still have the tv, remove the power board and look at the transformer connections. one will be burnt, due to poor quality. check this video, http://www.youtube.com/watch?v=XdsDxKkcesg

Posted on Nov 30, 2011

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It sounds like the main board may have went on the TV. It should be not that costly to replace

Posted on Sep 26, 2009

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Hmm my dad's old t.v. just cut out on him it took awile to turn on this my be the end of ur tv so this might be a power problem but older t.v. loose there colour on the screen my uncle had a like 10-15 year old t.v the screen was like green when it was light but when u turned of the light or closed the blind's it's picture was ok so try that.

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