Had a lightening strike and now two of four tv's won't turn on.I have checked the fuse in a 13" Sharp and it looked good to me.The other is a Toshiba that I haven't had a chance to look at.Thanks Keith
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Hi , it sounds as if the av board is probably fried but it probably did not stop there it may not be worth getting it checked out as that's just another bill to tell you its not worth repairing. Take time to think about it. But get it checked if you wish there is a lot of power in a lightning strike. It could fry one board and pass through the next as they are usually connected.
Try to check the main line and if its ok proceed to the power chord then to transformer or the fuse and you look it they are fine look for a technician to check your tv.Choose a better technician near from your place.
Lightning is a weird beast, and can do strange things to a TV. Sounds like the set took a hit. If there is a fuse then check it on a volt-ohm meter for continuity while it is out of the circuit, and if it is an open circuit, replace it. If there is a circuit breaker, then reset it. If these don't work, look for obvious scorching on the circuit board (assuming you know how to avoid electricution, otherwise do not touch). Lightening can literally jump around on a circuit board, so there is no way to know what part of the set was effected by the strike - the lightening will not always burn out the first circuit it touches, but will burn out something further into the circuit. The most obvious place to look is around the transformer and rectifier circuits. If a capacitor was hit, it may be swolen or discolored; resistors will scorch, and the worst thing is that transistors and IC's often show no damage - in fact, any part might be burned out and not show visible signs. If nothing is obvious (like scorch marks) and the fusing is intact, there are too many possibilities to begin listing them all. The fact that it won't turn on at all sounds like it is probably a power circuit, but, not necessarily. FYI turning a set off during a lightning storm does not protect it, you have to unplug the AC power cord and the line that feeds the signal into the set. Even circuit protection devices (lightning arrestors) may not protect against a close strike. Maybe the techs at Best Buy can supply more suggestions (Dynex is their brand).
If there was a lightening strike on the power line or in the cable feed or the antennae then You must be really lucky if the set has onley a case of simple damage like the fuse or power section Sm driver, rectifier.
It is important to take a look inside to see if the boards are fried, if you see many lines burnt on the PCB then I am afraid it is going to be bad.
Hope you check the first part.Hope I could help. Good Day
ok check all the braker even the one for the house .turn them off all and back on if this do not fix check for 220 v if voltage is present the board is bad need replacement get the number from the back to check for prices
Lightening may have caused a surge on your power lines to the house and to the outlet the TV was on. Do other things work on that outlet? If not you tripped a power breaker.If they do work check this. Unplug the TV for 2 min or more and plug back in. Try bypassing your surge protector you had it plugged into. It could have died when the lightening struck. (no surge protector?) Bet you'll buy one for your next TV. Look for 3000 joules and up rating for a surge protector and insure it has protection for a cable/antenna input too. If this doesn't work the TV may be fried or internal fuse blown. Time to take it to a repair shop or depending on it's age (5 years+) it may be time to buy a new TV and surge protector. Near Lightening strikes can effect appliances from several inputs that could be affected from outside like Power, Cable, Antennas, Phone Lines that come into your house.
There is a good chance with a lightening strike that damaged so much of your equipment that this device was also affected. power to the device doesn't necessarily mean that other components were not damaged.... you can elimanate speaker damage by hooking the speakers up to another device to check them.