Dynex tv Same as most I am reading - Lightning hit, now no power. I hve the back of the set off. Before I throw it away just wanted to see if I could replace fuses etc.

All of the details are on their warranty page.
http://www.hisense-usa.com/warranty/

You can reset the unit by unplugging, wait 30seconds to 1 minute.then try again.

If still doesn't come on, the lightning may have done some internal damage, such as to the power supply or Main PCB.

Ask and see but I would not mention the lightening---if its 3 months old the LG warranty should cover the repair or replacement.

They will not know at all it was lightening unless you tell them.

"This thing just stopped working" they will either get it fixed or get you a replacement set.

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).

There has to be some form of a fuse that is in the AC power line, it may be a square ceramic fuse or a regular cartridge fuse, chances are its blown if the set is dead after a lightning storm, unfortunately if you replace it there is a really good chance it will blow again, if it does then the rectifier diodes would be shorted and need replacing or you could replace the power supply if your unable to repair it yourself

You may either poor 24vdc power supply problem or failing backlight inverter board, you need to check the voltages before and after the set acts up.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague

Parts: www.shopjimmy.com

Please post back what you find

Throw TV AWAY,these tvs had alot of problems without lighting hitting them,It probably played out FBT flyback transfomer CK hori out put Transistor if shorted replace FBT also.

Hi! your tv power supply is busted, you need to contact a qualified technician for repair.

This could be bad.. You want to check the fuse in the power supply. If you are lucky that is all that is bad. If the lightning got thought the fuse you could have real problems. You would have to replace at least two boards, one being the power supply board and the other could be the signal board or digital board. Sometimes they unitize the signal and digital boards as one board. Lightning can do strange things. sometimes it will just take out a diode and fuse Sometimes it can trash a set making it cost prohibitive to repair.. Good luck.