My Logik TV turns on and then 20 seconds later turns itself of and then back on again?? HELP!!!! LOGIK L32SHE17(A)

SOURCE: Logik T.V. model LK-74 - fault: green and purple on screen

Try moving speakers away from the TV.

SOURCE: Sound on my Logik TV

change the memory of you tv..it is an IC with 8 pins near the front panel.if not working, change all the button switch

SOURCE: Logik t.v locked on a blue screen with a red lock,cannot unlock

I am having the same problem ,your TV has been child locked.In order to unlock it , on the remote control,there is a MUSIC BUTTON.You must press and hold this button for about 10 seconds and it will unlock your TV

SOURCE: Unlocking Logik TV set

If you have child lock on a logic tv. On your remote the bottom where the button is music / sound. Hold in for 5 minutes and the lock will come off

SOURCE: TV TURNS OFF ITSELF AND 15 SECOND LATER IT COMES

This is a Heat issue with the front sensor of the TV. Dust and Dirt block the sensor causing it to heat up faster and faster. Cleaning the lamp is extremely easy and it will get the TV working again, at least for a short while and then it will happen again. I know cause its been happening to me and it will work for about two weeks and start happening again. Sony actually has a class action lawsuit against them for this issue. Long story short here are the steps to correct the issue:
1. power down TV and disconnect from the power outlet then let sit for 30 minutes until its colled down 2. On the bottom corners of the TV (Back side) you will find a round screw that you can loosen with your fingers 3. once both screws are lose the front bottom part of the TV will pull off, there are magnets there so it will hold it in place temporarily. 4. Once the cover is removed, in the center of the TV will be a little door with another Finger screw to loosen, once off move the bar holding the door closed and remove the plate. 5. You will need an Alan wrench, the screw will be in the upper left corner, when this is loosened the screw will not fall out and you can pull out the Light fixture 6. CAREFULLY with compressed air spray the light assembly and the inside of the TV very well and then replace the light bulb. 7. Put the Door back on the front of the Light area, and assemble the rest of the TV in reverse order before testing the TV. I have done this multiple times as this is not a permanent fix but does restore life for a short period of time.