Our television at times flickers....every so slightly... The picture never dissapears or becomes unwatchable its just something my wife and I have recently noticed where it almost seems like the picture dims and comes back repeatedly. However when I watch things such as sports games I do not notice the flickering. It was almost as the brighter the picture there was no flickering. Two nights ago I changed the setting on the TV from Low-Bright to Hi-Bright. So far so good no flickering. Anyway is this something I should still get checked out? Also as an FYI I changed the bulb back in July/August of 06 so it "should" still be working fine.
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Re: Flickering - Toshiba 62HMX84
It could be as simple as the tv feeding back on itself in a dark room. it is adjusting the light level because of what it sees ambient in the room. turn on a light near the tv and see if it stays constant now.
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Nov 21, 2009 - Uploaded by Brian Baute
Flickering & green boxes appearing all over my Toshiba56HM195 screen. This behavior is consistent all the time, with multiple lamps, and across multiple inp... ... Up next. Stay Away From Toshiba DLP Projection Television!
I have a 62HM84 Toshiba TV. I lost picture on my TV in the past i have bought the lamps and i just put it on and the picture comes on. This time when i replaced the lamp nothing happens no picture. It tries 8 times to turn on, but nothing happens. Can you help me with is what is the problem.
I hope this helps you but you might wanna look into some other posts too cause it goes farther then the lamps and color wheels. Basically it's a bad product and the consumer should be fixing it. But your problem seems to be the color wheel. Or just a good cleaning. We replaced the lamb in ours and still had a color problem. We're gonna do an exstensive cleaning and dusting of our unit and if it don't work. We're going straight to the manufactor. This is enough with this product! It's costly to repair and still don't have the quality picture it should. It's more then a simple fix and too costly for ppl to just fix and move on. For how old these products are this all should not be happening.
This is almost one I'd prefer not to answer because it's not good news and usually posters just kill the messenger.
In this particular model sony the focus block P/N 8-598-955-31 are common failures which can cause the flickering but not usually shutdown. Also a common failure is the crts used in making this unit and they are not economically repairable. The symptoms there are exactly what you've described, flickering then shutdown. The flickering is caused by current leakage in the crt and are especially prevalent in serial numbers beginning with 90xxxx. Sony even put out a bulletin on this issue some time ago and offered part warranty on the parts for replacement. That offer has since expired.
You can remove the lower front panel and expose the lower area of the crts and focus block. If you take the the rubber end of a screw driver and slightly tap on the neck of each crt while watching Tv you can confirm the described failure of the crt if it flickers as you tap. We techs call this the slap and tickle method but it is VERY effective in this case. This does not in ANY way rule out having it diagnosed by a qualified technician, which I strongly suggest, it simply helps in confirming the diagnosis yourself.