Question about Samsung DLP HL-P5663W 56" TV

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Humming noise when turned on

My tv hums continuously when turned on .is there a setting problem ,age problem?

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Annebatiste:
Humming almost always comes from DC supply problems.A leaky SCR [silicon control recitfiter] transistor [used in a/c to dc power supply], leaky Capacitor [large metal type for heavy voltage\current], bad or value changed bias for SCR transistor, value changed filter resistor and loose transformer[Xformer] that the coils INSIDE vibrate sending a radio frequency [R\F] SIGNAL (like a radio station) into the audio amp section or right into the speakers causing the hum.
Check entire power supply, all filter capacitors, coils, chokes ,transformers (somtimes used to push signal into speakers)

Posted on Jun 28, 2008

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