Insigna 37 in screen comes on then off right away

This may help you it is the owners manual for your tv
https://www.manualslib.com/products/Protron-Pltv-37c-647278.html

Scrren problems can be a bad screen or a bad t-con board. The only way to check wich one is by trading out the T-con board, If the problem goes away it was the T-con board if it does not it's your screen. To find the part you have to get the part number from the actual part. you can order parts for this TV at www.interliquidparts.com

ya its easy there are 3 wires yellow for video & red - white for audio just plug that wires in the same color socket from tv to player

hi
this wil be a bad main board

If you are comfortable, take the back off and on the lower right hand side, locate the control IR pickup board. (The Remote sensor). Follow the ribbon cable and relocate that wire away from the inductors on the X board.

You could also try a software update. That may fix the problem.

Unplug,replug about hour later,let see if it reset itself,see if it go away.Not the manual controllers board is dead,the board in the right of the tv.

Check if close captioning or teletext is turned on.

This most likely a problem with the back lights and inverters circuits.The back lights may be receiving low voltages from the inverter circuit causing the led's not to function correctly. This needs to be tested by someone who can check the inverter circuits for correct voltage levels and the backlights for proper functioning.This usually has to be done in a service center.Try this website for Help and possible repair. LCDParts.net. Technical support telephone number is : 1-877-870-0581 or 1-415-682-8635 Hrs 9am to 5pm P.S.T. This site has lots of information on these type of problems. Hope this helps you with your problem.

Your control board seem's defective or the inverter board (associated circuits) are bad. This is common in most TFT-LCD Tv's.......

HI

I have a Insigna IS- TVHD30. It come on and have a perfect sound but I can't get a picture. Its about three years old. I went to sleep watching Tv. and when I woke up the t.V. was on, but wasn't showing a picture anymore. I decided to throw it away last week, and plugged it up and it came right for 2 days, it was perfect. Now it has went out a again. Can some help!!!