Question about Toshiba 46HM95 46" HDTV

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How long does a lamp/bulb of a Toshiba DLP 46HM95 46 in last?

Hi. I'd bought this TV in 2005 and the bulb blew after 6 months. I called in and had it replaced. Then it blew again in 6 months; but before this second bulb blew, the color was little bit off on the "orange" color areas. Other colors are fine. Now, i just replaced a new bulb myself, but the orange color problem isn't solved. I'd posted this problem in the forum but they said the problem was the light engine. If it's a light engine problem, will this light engine blow my new bulb if i don't replace a new light engine and continue watching TV? Thanks for helping...

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  • Quyen Liu Aug 01, 2007

    The bulb is okay now, but the color is still off. Guess i will have to replace a new light engine. Any recommendations where i could get this light engine for a right price? thanks.

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Your bulb may be blowing because of airflow issues or power cycling issues, first does your outlet get switched off at any point in time? if so you may be killing the bulb before it cools, if you turn the set on/off alot and or restart it after off quickly this could lead to permature bulb failure, if the original lamp was not replaced with a proper lamp to match the ballast it could blow the bulb. If your tv is too near a heat vent or the airflow thru the set is not adequate it could blow the bulb.

Posted on Aug 01, 2007

  • Anonymous Aug 01, 2007

    P.S. the color sounds like bad color wheel in Light engine, or the DMD board.

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Hi just relaced the bulb 6 months ago Now tv


If you do not hear anything trying to come on, no fans, or relays clicking, you probably have a Thermal Fuse that has opened. Do to the dis-assembly that is required to replace it I recommend you have a qualified Service person come out to verify the symptom and repair the set. If that is what it is I estimate 400.00 or less to repair the set.
I hope this helps
Skyassoc

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1 Answer

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Hi Mendi.
I had a similar problem, in that I could not find the proper fuse for my set. I bought a bit higher amp fuse from Radio Shack and it ended up blowing a couple months later. I've since pulled the TV down and replaced it with an LCD set, so I've solved my problem.

But, to address yours, I don't think the amp difference would not be the problem. Likely, there is a power issue on your set causing it to draw more amps and become out of specification. Using a higher amp fuse would buy you more 'capacity', but if its blowing those too (repeatedly), its likely a real problem in the set. I'm not a TV technician, so I can't tell you why. I'd suggest taking the thing in for service (cheaper than the house call) or if that is too expensive, looking at putting your money into a set that won't give you those problems. Or, just keep replacing the fuse until it doesn't fix the problem.

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1 Answer

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Uh Oh! blue screen of death. Your light engine has warped a little from overheating and is distorting the picture.

My suggestion to you is to get on the phone with hitachi and start complaining, then keep complaining until they agree to pay for it. You may have to get the problem diagnosed by a pro before they agree to pay for it though.

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