Samsung Plasma SP-S4243 TV will not come on. We had a lightning srike. Tv was in a surge protector. Tv came on at first them would not come back on. Could it be the 10amp, 250volt fuse. If so Can I get it at Radio shack? If so can it be a ceramic fuse for microwaves, 10amp, 250volt?

If you did not have a surge protector .Its most proberly done . You can get Tv tech to check it out . It may be covered on your house insurance

A modern tv is as much computer as tv and isn't electronically robust having much delicate circuitry that is vulnerable to surges, spikes or transients.

A direct lightning strike isn't necessary to cause damage and lightning activity in the area is all that is necessary. A surge protector could provide some protection but in reality disconnecting the tv from the mains and the antenna is the best protection.
In the early days of radio when circuits were more robust, an external antenna and a good ground was often necessary for good signal reception, there would be a knife switch provided to disconnect the antenna and ground it whenever there was thunder around - a worthwhile precaution that unfortunately isn't practical today.

A tv that has failed during an electrical storm might be economically repairable or might not - only the repair guy could tell you this. My limited experience with this tells me although such a tv can be fixed it never seems to achieve the same quality.

Yep, power spikes kill. Power spikes kill all. Power spikes kill all forever. Replace all and get a new surge protector that costs at least $99. If you never need it it is called insurance. I am in FL the capitol of lightning. High priced surge protectors are cheeeeep when lightning is there.

What is wrong with the Samsung TV?

Samsung SP-S4243 Television

You can download a pdf copy of the manual at the link below. Click on or copy and paste the link into your browser and save the document on your computer. The document opens with Adobe Reader.
http://downloadcenter.samsung.com/content/UM/201105/20110502125808069/BN68-00991J-00Eng_110502.pdf

No, you cant. I have 2 tvs just like yours but the LN model is newer than the SP model tv. I have the same problem, my LN tv has a cracked screen and the other SP model is good

Lightning definitely sounds like the issue.We had our computer plugged into a surge protector last year but our computer got fried.We purchased a Belkin surge protector which is much better.The smallest one they sell I believe is 6 outlets for $50 BUT they back that with a $50,000 guarantee.If something fails due to their product,they will reimburse you for up to $50K,and I already called just in case,you do not need receipts.They make up to 12 outlets and that has a $300K guarantee.We live in the lightning capital of the country,Tampa area,and so far no problems.Also,it's not really good to hold down the button to force it to come on because the clicking probably means it's trying to save itself,but at this point it doesn't much matter.The TV will need to be looked at.I wish I could help more but the TV makers won't let me as a consumer,find any parts prices or diagrams.Sorry , but good luck!

The warranty does not cover lightning, check if your insurance covers it.
A lightning strike on such panel ( HDMI ) is very difficult to repair and if not impossible.The HDMI connector is hooked to the ground of the TV set so everything could be damaged.
My advice is not to repair.

u may have a bad y-sub board , it is normal on plasmas

You need to set the TV to input from the source that the computer is connected to.

You also need to make sure the computer is set to output a signal to it's S-video or video out port (usually Fn F5 or something like that, or there may be an software switch in your desk tray where it is to be tripped.)