Question about Toshiba 42HM66 42" Projection HDTV
Especially the dark colors like black and dark green start to flash after about 3 to 5 minutes after tv turned on.picture is still there but things like the peoples faces start to flash like they're flouresent. I've tried several things suggested on this sight and think it may be the ballast. When the weather was cooler opened window in back of tv and removed back panel and that fixed it but as temp. have risen it got worse. it was suggested to put a fan in back of the tv and that worked until now when the outside temp has been mid 80's. inside temp 70 -72 or so. i noticed it starts to get bad when inside temp gets to around 71. i have replaced the ballast fan and that hasn't worked. the old one was also ok. the other 2 fans in the tv are fine. any suggestions?????
My experience of TV repair says its problem of weak electrolytic capacitors in TV that can be in power supply and /or digital signal processing board.
If you are good with soldering parts in circuit boards then I would recommend to download Service Manual copy of Toshiba 42HM66 TV from Manual Zone for small fee and give a try to replace bad electrolytic capacitors in TV.
Posted on Jun 23, 2009
The remedy that you followed is a temporary one and someday you will have to change the bad part. It might be problem with the light engine that is very common with this model. Replacing the light engine is Toshiba's quick way of fixing most problems... the light engine is the heart of the system, so if you replace it you are most likely going to replace the problem part... However might cost you on higher side.. Please get in touch with Toshiba if TV is still in warranty.
Posted on Jun 23, 2009
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Posted on Jan 02, 2017
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