Question about Zenith R56W36 56" Rear Projection Television

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Plug tv in and i get a large snapping sound from the back end

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This is usually an indiction of a cracked flyback transformer or splitter block, the spitter block is responsible for dividing the high voltage between the three CRT's or picture tubes. This could also be caused by a open tracing in the Horizontal scan circuit, Sometime bad horizontal caps go bad and cause this error also, there could also be a cracked picture tube at its neck, the best way is to take off the back and make the room dark as possible and stand a short distance away and have someone turn on the unit, you will see the arc of blue high voltage from the defective part.

Posted on Aug 24, 2010

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