Question about Televison & Video
If you can take it apart, concentrate in the power supply board, this is where the power cord connected because the fault is came from it. The caused of the symptom was the leaky/dried filter electrolytic capacitor in that section. It will produce an out-of-regulation to the power supply which made the unit disable, it needs a warm-up to make itself stable(full charged) that's why powering on and off will make it to comes on but the symptom will get worst. Sometimes it has a bulged/dome at the top but not all, you must have a capacitor checker to determine its condition and pinpoint the faulty one. If you don't have it, you may replaced all electrolytic capacitor in the output of the power supply feeding the main board.
Upon installing the new capacitor, ensure the right polarity to avoid further damaged. Once isolated it and replaced with new same capacitance and voltage ratings, your unit will back to normal again.
Here's the sample of leaky capacitor
You may order online for parts or visit your local electronics supply.
Hope I helped you.
Have a nice day!
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Posted on Mar 31, 2011
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Posted on Jan 02, 2017
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