TV is Locked

What is the brand name to the TV, you want setup codes?

To unlock it you must have its remote control. Contact the nearest authorized service center for Sony, to buy an original remote control to your set.

Consult the owner manual carefully as the set may have a way to lock out or not allow the remote to work.

Yes, it could be the remote receiver in the set is bad but if you just bought the set--it should have a warranty.

It is either the remote is locked out or bad or a issue in the set.

Hello
I thinks that you have its original remote handset with you now, and posts this solution. If you don't have it, either buy a new original remote handset or try to get it from any of your friends and relatives, who owns the same model of Mitsubishi Tv, you have now; only to unlock it. After unlock, you can use any other remote control.
Mitsubishi sets use a four-digit code for a V-Chip locked program, view a locked TV, cancel the lock, or to enter the V-Chip lock menus. You can view the locked shows on the TV set by pressing the number 9 and QV buttons on the remote at the same time, whenever your code is requested. This process temporarily unlocks the TV and asks you to enter a new code.
OK.

Try here:
http://www.ehow.com/how_7278060_reset-parental-password-vizio-tv.html

You should also download the user manual for your TV.
Default code is 0000, also try
2489, 5351, 8202, 8205, 8206

try to get to the menu's with the remote, then with that go to the locked section or security. look for front panel access or something along those lines and enable it.

You need to have the original remote to do this but I think you need to hold down the "F" key on the remote and then press the "MUTE" button. Try this and let me know if it works - for future reference.

It should be exactly the same to turn it on again.

problem with mitsubishi wd65737. thought the bulb was bad, bought a new bulb replaced it and now the screen doesnt want to come on. light on the front of the tv turns green, you have sound but no picture then the tv turns off the light on the front is now steady red. resetting the sytem worked yesterday but not today.

Sounds like the unversal remote isnt programmed for your particular TV. See if the instruction manual gives the details for how to do that. If not, call them to see if they can walk you through it. If that doesnt work, go buy a big screen TV.

if the universal remote you bought does not have the code for your tv then my friend you are in bad luck you cannot use another code that does not go along with your remote.try www.partstore.com and see if you can purchase a originald remote for you tv.good luck.