Question about RCA R61WH76 61" HDTV

1 Answer

Rca 61" televison comes on for a few mins, get turns off

Rca 61" model num R61WH76 chassis num ITC222A when first turned of tv, the picture is great ..after about 10 or so mins, a line will show up and i can still hear sound then the television will shurt off..

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  • ncfirefighte Dec 04, 2008

    even tho when the line shows up, the rest of the tv is black?

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1 Answer

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  • RCA Master
  • 5,568 Answers

Sounds a lot like a thermal effect.
Buy a can (or maybe two) of freeze spray from an electronics supply company; figure on $5-6 per can.
Open the back of your set and look for a board with larger components on it and fewer small parts; this should be the power supply board. Either enlist a helper or (I prefer) use a mirror so you can see the screen. When the streak appears, hustle behind the set and spray selectively individual components on that board. If you can influence the line, repeat the treatment in a smaller area until you are fairly sure which one is temperature sensitive.
If the component is marked with text, record it. If it is color-coded right down the colors starting from the end closest to the first band. 
If you don't want to learn a new skill, namely soldering, you could remove the board and bring it to a repair shop and let them know what to replace.
If you don't find anything sensitive on that board, the problem is going to cost more. You will have to repeat the same procedure using the spray on other boards until you have isolated the trouble area. If you can't single out a specific component, it will have to be sent to one of those 'factory authorised' repair places since failures of parts on the main board will have to be sorted out and then the board will have to be tested in operation and only that kind of repair facility will have the right hardware to do it. 

Posted on Dec 04, 2008

  • Steve Allison
    Steve Allison Dec 04, 2008

    If the line is synchronous, then the problem is more likely to be on the main board than in the power supply but you might want to still start there (in the PS) since the component count is smaller there but because of the delayed nature of the appearance of the line, it must still be related to a component warming up. 

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