Question about Toshiba 61HX70 61" Rear Projection Television

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Picture gone screwy

Last night I was attempting to clear up the picture on my 6 year old 61HX70 by tightening the coaxial cable. After unhooking and rehooking it, I noticed that the picture had become distorted and the colors were not lined up correctly in the corners. It has 2 "lines" that scroll up the screen and each time the scroll the extent of the lineup on the colors changes. Along with this the sound has changed somewhat to a somewhat muted audio with some static in the background. Any idea what might have happened and what it would take to fix this?

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Re: Picture gone screwy

Did you end up taking this in for service? If so, were they able to fix it?

Posted on Sep 06, 2007

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Re: Picture gone screwy

The two lines, do they appear like a picture in 3-D? If that is the case, the convergence amp IC's probably were weak already, and took a dive when you were adjusting the set. As when the picture changes, so do the voltages on the power supply shift a little. I think you may have a power supply problem as well. Probably a capacitor in the main supply that gives you the plus and the negative voltages for the convergence. If you have the knowledge of soldering and working on printed circuit boards, you can change the two convergence IC's first. After that measure the + and the - voltages on the IC's and see if they are low or vary any significant amount. If you cannot solder, maybe a relative, friend, or maybe a neighbor can assist you, as changing the convergence IC's is not really difficult. A repair person will charge you anywhere from 300 to 400 bucks for a job like this. The IC's only cost about 15 bucks or so each. Good Luck, and let me know if you can handle this repair and if you need any more information's regarding this repair. Oh, one more thing, it is always a good ideal to get the service manual for this set, so you will know what and where everything is and can make any adjustments after the repair. The manual is available Here;

Posted on Aug 04, 2007

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