My toshiba plasma tv gets really hot, very fast! what do i do?

Getting hot where? If you bought a generic battery it may not be compatible, The heat location is important. It could be the fan is dirty or the heat sink is not working well. Hard drives also get hot. Go to almico dot com and download speedfan and it will tell you the temps.

I've owned a 42HDX99 since 2007, It's always been warm/hot. Still works/looks Awesome. Plasmas do generally run hotter than
LCD/LED's. Also have a 58" Samsung Plasma ( which I've had to repair ) and a 2009 Toshiba 1080P LCD ( still works great )

If it is a plasma then chances are you have jerked it too fast or it was dropped bc the plasmas are very motion sensitive, no way to fix it just buy a new tv

Check the fuses on the ysus & zsus boards. Are any fuses on boards open . Disconect power cabels to ysus board first {board on left} . put tv on . if the light is green the ysus board must be replaced.

Found that video 1 and video 2 switching does not work. The switching IC was HOT!. Then found a third video input works but no sound. Hooked -up sound output of DVD player to amplified loudspkr and it works, I hate to throw away a 2 year-old plasma TV when TV and cable still works.
Thanks for the offer anyway.

Mike

I bought my Toshiba 50HP66 50" Plasma a little under 18 months ago and about four or five months ago it began to act strange. It would put a block of characters on the screen that made no sense until I would unplug it and and restart it. Then it would act normal for awhile and would just need a reset every so often. I was out of the 12 month warranty so I just put up with it.....until yesterday. I was watching the TV when out of nowhere, I heard a really loud POP....and then the screen went dark. I went ahead and bought a new Sony LCD screen and was going to sell this for parts online. I troubleshoot electronics daily so I thought I would purchase a digital copy of the service manual and check it out. After I downloaded it I noticed that this is very common with plasmas (this exact failure) and only on the LG boards. I scanned my handy dandy service manual and found out that Toshiba was using these same boards along with Zenith and some others. The difference is all the other manufacturers honor their product and replace these boards even when the warranty has expired so I called Toshiba and tried my luck. Even though I've found many postings of Toshibas failing and hundreds and hundreds of the exact same board failure...Toshiba claims to have never heard of it. I informed the "Customer Support Supervisor" of Toshiba that I would be willing to post this on a few websites and have other customers contact him to inform him of this issue. He was fine with it so here is his contact information so feel free to let him know your Toshiba plasma went POP as well.
800-631-3811 ask for Dave Thompson and let him know.