My polaroid TV will turn on but there is no picture or sound

I hit the button on the sidea and it went to channel 17 I got it back to channe 3 but it still says no signa I do not have a Polaroid remote

Here is what you need, its from the manual for your TV

Ur tv power supply board is defective.That the board where the a/c power cord go into it.Replaced the power supply board,ur tv will have stable power and work again.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

It can be the main board or the power supply, look at the power supply first since it is easier to get to, look for burnt parts, bad capacitors, etc.
http://en.wikipedia.org/wiki/Capacitor_plague
Please post back what you find

Replace swollen capacitors on power board.

The most likely the TV has a power supply related problem or it maybe just a blown fuse inside the TV.
I can't say it's 100% the problem because I can't actually look at the tv over the internet.
If by some chance the TV is still under warranty, go that route.
If not under warranty and If you have some electronic experience, you can purchase a Service Manual over the internet and diagnose the source of the problem and fix it by soldering in the new part. The Service Manual will give you circuit diagrams, test points, and part# lists. Usually, cost under $20.

I hope I shed some light on the subject for you.

It sounds like it is the picture tube. The same thing just happened to me. The back of my television started smoking and then there was no picture.

Hi,
Symptom shows that Mani Board is bad in your TLX-03210B Polaroid TV and need to be replaced. I do not see problem of capacitors in power supply board. Problem seems in system control section of TV that is located on main board.
Click Shop Jimmy as it is best source to obtain boards of LCD TVs.
Please call Shop Jimmy for main board availability as currently its out of stock.

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Thanks.

I had the same problem with mine, and figured out how to repair the control box. If you would like to have me perform a service on your set go to www.mikecampagna.com/Polaroid

This soud like the inverter board no back light to see the screen.