Question about Toshiba 43H70 43" Rear Projection Television

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43H70 43 in. Rear Projection Television

I received this set from a friend. He said that it started acting up several months ago. The picture would go out, and he would have to unplug the set for a few minutes, then plug it back in. Eventually it wouldn't come back on at all. I've read several posts about changing the convergence chips, but most of those posters state that the power light blinks slow. I plugged this one in and turned it on for 4 or 5 minutes, and no blinking. By buddy said that he still had sound, but no picture. When I do power it on, I can hear what sounds like a normal TV powering up, and I also hear the speakers power on. Suggestions? Thanks.

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  • ciocolato Nov 15, 2007

    I got this set from my parents last month. It's six or seven years old. I know they used it a lot but never had any problems with picture or sound which were very good. I haven't used it that much, but have had the situation where I turn it on and hear sound with no picture. The remote is fine. The power indicator light which is usually on bright and solid now flashes or is dim and solid. I thought of unplugging it for a while thinking something might reset, but now I wonder if it's worth repairing -- or is anyone going to know what the real problem is anyway since as good as the sound is still, there is no picture.

  • Roughrob4 Dec 21, 2007

    i have the same problem too and we unplug it for maybe 5 or 10 min and it will be fine it has gotten so bad that it does it like 3 or 4 times a day



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You will need to trouble shoot the power supply and shut down circuits. You will need the service manaul to do this properly , if you would like oe you can get one here at this link for 10.99 and they will email it to you and help troubleshoot your set for free. here is the link if you want the manual.

Posted on Feb 01, 2008


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