SOURCE: no picture
Try a hard restart, which simply means unplugging the power cord, and replugging it after 4 hours have passed. This technique helps to reprogram the electronics, to a certain extent. ( Turning it off and on again by a switch will not work). If the picture does not return, then you might need the expertise of a TV repairman.
SOURCE: TV was playing, then the screen turned black.
If the screen is black and you have sound then lightly press and shine a strong flashlight against the screen. If you see an image around the edge of the flashlight, an image is being 'displayed'. The problem is probably in the Inverter/CCFT or the power going to the Inverter.
SOURCE: I have a 37 inch Insignia flat screen tv. This
This unit needs to be tested in a service center because it has problems with the operation of the video card. This could be caused by a loss of voltage supplying the video card from the power supply card. Or a failure on the video card itself. You can purchase parts for unit from Best Buy Parts at !-888-237-8289 and get customer service at 1-877-467-8289. You should get an estimate from the service center, That should tell you which parts are bad and then you can proceed from there. If the prices seem too high for parts and labor from the service center, try buying the parts yourself and have them install them for you. You should try to check the prices on the parts , just to make sure you are getting a fair deal.You can do this by getting the part numbers, you should ask the service center to provide the part numbers needed if they need to replace the power supply board or video board and with your model number of television check out the prices and availability at the Best Buy Parts website.Of course if the television is still under warranty send it in for warranty service. Hope this helps you with your problem.
SOURCE: insignia lcd hd tv 42
Your TV requires diagnostics and repairs. In home service can be obtained by calling 1-888-237-8289 in the U.S. or 1-866-237-8289 in Canada.
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