Polaroid tv has three black spots on the screen how can i fix it?

SOURCE: Polaroid LCD TV 37" Black screen

I had the same problem. But found the fix on this website!!

http://www.fixya.com/support/r741402-polaroid_flm_373b_lcd_tv_black_screen

SOURCE: polaroid flm373b

Try several different inputs.

SOURCE: 42' polaroid tv wont show screen still

well if the light stays blue , that means its still on ...what you may need to do is go to your menue and select the setup selection and then go to tuning band.....i belive it will be on page 32 of you manual, under customising the setup settings....in order for the tv to start working it needs to be able to scan for channels.....if you are useing a cable company like comcast or direct tv...depending on how you pluged it into the tv ,(like using the input 1 or 2 , s-vidio, cable , ectra,)...you need to push the input button thats on the lower right side of your remote and select the propper input area as to how you hooked up your cable box

SOURCE: screen black. polaroid tv 32". have sound TV/DVD Combo TDA-03211C

sounds like inverter board. What it sounds like is happing is your LCD is working ut the backligkt board that allows you to see is kicking off. (as you still have sound) Which could be the (most likely) inverter board, or the power supply board. You can take apart and check for voltage at your power supply. The power supply has a pigtail with large white wires and a connector. Power up with the center back cover off and check your voltage at the white connector on the power supply before and after the screen gos out. If there is no large voltage loss it is your inverter board.

You can used boards on e-bay or
www.rns-systems.com

SOURCE: Polaroid TLX-04240B going to a black screen.

open the black plastic panel and the aluminum panel which has 3 screws each in the back of the tv.
look at bottom left corner of top board. to the right of the red led light,
there's these four white small switches. turn the bottom two switches to "on" and tv should be working.
It's very simple to fix the problem to everyone.
My tv capacitor was not the problem.
I hope this will help everybody.