Tv won't power up when pluged in

Try disconnecting all of your HDMI cables and plugging the power cord of the TV into another wall outlet. If this resolves the issue, you may have had a small power surge from either your wall outlet or one of your source devices. It is recommended to connect your TV to a surge protector if you haven't done so already.

Try to I unpluged the power, push volume and channel down, pluged power again

While it's flashing unplug your TV from the main power source for 15 seconds,Then press Valume Up and Channel Up, while holding it plug the TV back in, you should see the TV Turn on. How to Reset Your Sharp LCD TV TV Repair

as you said jvc lcd tv won"t show. if lcd tv have good power supply & main board. that will be inverter board gone in. replace it will be solve you problem. good luck!

It sounds that you might have to enter its service mode to select the sound system. Visit the site named 'Electro-help' for more details. Check this link and select the site. View it in 'Flip card' option, which can be selected from the drop down box menu at the left top corner or the display window. It will make search easy. Some times, the ads attached with each posts might help you to find the availability of spare parts. There are more than 550 posts to different brand TVs.

This is an error code of some fault inside. Kindly call in a qualified service technician.

If the red light won't come on it is not getting power.First,try plugging it in to a different outlet,or unplug one of the gadgets you know is working and plug the tv in there.You are simply switching.If you know that there is power coming from the outlet and it still won't come on then you'll have to check the cord;don't go much farther than that without expert help.

Someone must open it and check voltages on the power supply board as the first step.

Depending on what is found boards may have to be ordered and installed to KNOW which will fix or not fix the set.

Hello
Check the backlight inverter board to your TV. This is a common fault for most of the LCD TVs. If it is faulty, the backlight won't light up, resulting a balck screen with sound.
This is the picture of the backlight inverter board to your TV. OK.

Yes, TV sets have a fuse inside (in a holder on the circuit board near the power cord connections) and it may be bad, but that's unlikely to be the trouble. Fuses seldom just go bad on their own, and if you find it's blown there's usually some other part that causes it. A dead TV is not always easy to fix, and you generally need the services of an experienced technician with the tools and information to track down the problem.

Have you tried unplugging the TV from the wall, letting it sit for a minute, then plugging it back in? This will reset the computer inside (if it's getting power), and sometimes that's all it takes. If not, you can take the back off the TV (MAKE SURE IT'S UNPLUGGED!) and check the fuse, but that's about all. As I said, if it's blown it will probably go again if you replace it, and if the fuse is good but the set won't come on it will need professional help.

Good luck, and thanks for using Fixya!

It's probably just a fuse.
I don't have a physical layout of that TV inside though so if it's blown, I'd need pics.

Here's the possible good news though.
He may have simply tripped the power supplys' protection circuit.
Unplug the TV for 5 minutes and plug it back in, it may be fine!
It takes a while being unplugged to reset the power supply when that sort of thing happens.

If the TV still won't come on, you'll need to open it up and get some good shots on the power supply board and the board that the service port is on, and of the cable that connects the 2 of them together.
If the pictures are good enough, I can point out where the fuses are.

If the photos are necessary, post a comment or reply here and I'll give you an address to send the photos to.