I have a Westinghouse 42 inch LED TV. One day it just did not turn on. I noticed the AC power supply adapter blinking green. It never did that before, I was wondering if I possibly need a new AC power adapter. I also noticed on the adapter that is said this adapter is designed only for the Insignia please do not use with any other device and I received this adapter with my TV so I don't know if there's a mistake there also? The TV is no longer under warranty unfortunately. I also took the back cover off and inspected the power supply board there was no indication of any damage there were no bulging caps so I'm thinking it is possibly the power supply.