My 50" TV was working fine, took shower came out screen was black. Unplugged for 2 days. The thing that happens is red light changes to blue, still no screen

SOURCE: My mptv68a tv locked (don't know if it's child lock)

Try these codes to unlock the TV
0711 or 0000

SOURCE: Philips 50" plasma has faded screen

y-sustain board is at fault

Testimonial: "Thank you for your help I will start pricing them."

SOURCE: Element tv.. model # ELCHS261 stopped working

My Element ELCHS261 will not turn on at all. The only thing it does is the red light will turn to blue but no sound and no picture. My troubleshooting items have been changed the batteries in the remote then I unpluged the power for for 30 minutes and still nothing.

SOURCE: Black screen but have audio.

It's a pretty common problem. (If this is a plasma your post says lcd but it came up under plasma.) The no picture but sound problem is usually the y sus board. I've replaced 2 on mine now. The 680uf 35V capacitors usually are bulging because one of the power transistors went and took them out. This has happened to both of the y boards I had. One time the failing y board took out the buffer boards too, and once it did not. The fix is super simple and anyone with even the most rudimentary knowledge of computers or electronics can do the labor yourself. You should do the simple stuff first by just doing a quick test with a multimeter. Just check the power coming to the y board. After that you can just remove the y board by removing 3 cables and like 3 screws. Plug in the new board and it's done! You can source the parts from a place like shopjimmy or discount merchant. 3 boards were like 200 bucks. 1 board is like 100 bucks. Labor took me 15min. Think about that the next time an electronics repair place charges you 1000 dollars. Of course they check everything (Yeah right) and warranty their work (I don't) but if you check the service manual it states that this is the most common repair. Look for the Canadian manual online. Hope this helps!

SOURCE: How to reset tv. Have sound but black screen

LCD's use a colorful crystal see through display which only visible when light is shining through it. if you have sound and no picture it's always a faulty PSU. Very easy to change out actually.