Question about InFocus ScreenPlay 61" Rear Projection HDTV

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Monitor goes off and on by itself

After the monitor comes on, it will stay on for about 2  minutes, then it goes off for about a minute and then it continues doing that the entire time it's on.  Any suggestions for a fix?  It's not going off completely like it does when you use the power button and the blue screen appears until it shuts itself down.  What happens is that the blue lights that let you know when the monitor is on start blinking, the screen goes black and the blue series of lights quits blinking.  A minute or so later, they start blinking, the screen comes on for about a minute and it continues to repeat itself, just like I feel I am doing right now.  HELP!!!

Posted by bjaykaye on

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Hello bjaykaye,

The problems you are having are an indication of a Power Supply problem. The issue could be in the switching power supply or the High Voltage Power Supply. The shutdown circuit is activating which is allowing the TV to play until it detects an over-current event. When an over-current event happens the shutdown circuit will turn the TV off. I would suggest that you check the Horizontal Output Transistor, the HV Transformer, the Horizontal damper diode, and the capacitors that are in parallel to the damper diode. The important thing is to find the component that is causing the problem. If you do not have a background in electronics I would suggest that you get a qualified electronics technician to look at the set.

Thank you,
Shuttle83

Posted on Oct 29, 2007

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