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Re: My Tv just keeps turning on and off with no pattern
The first and most obvious thing to check is if the power button has been push in too far in,other than that the unit is going to need service,if you are familiar with tv service you can try removing the back cover and pulling the chassis back a little to make sure the buttons are not making contact with the momentary switches inside the unit.Make sure the unit is not plug in while you do this.Be careful or be safe and call for help.
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Based on the lower specification of this TV any repair is more than likely going to exceed the cost to replace it, One of the internal components has failed and generally unless you are handy with an oscilloscope it's not worth fixing.
You need to change the seven capacitors on the DM power supply board (inside the metal case on the left where your DTV tuner connects)They are 1000 MFD 16 VOLT capacitors and the tops are probably bulging outward because they are leaky- this is a common problem.When you lost power,the TV had to reboot itself but because of the leaky caps it never will and the green light keeps blinking.As long as you never lost power or unplugged the set the TV would of still worked.Once you change the parts and plug the set in the light will blink normaly for about a minute and when it stops blinking you can then turn on the TV.