Sharp VC 584UB clock lights up but won't power on - Videokarma.org TV - Video

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Sharp VC 584UB clock lights up but won't power on

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01-27-2026, 08:14 AM

Electronic M Electronic M is offline

M is for Memory

Join Date: Jan 2011

Location: Pewaukee/Delafield Wi

Posts: 15,455

Does it power on with the remote? Some front panel circuit boards have all buttons going to a single analog line on a control IC and each button pulls down or up through a different value of resistor that the chip senses. If a resistor drifts enough the IC no longer interprets the button it connects to as the function it's supposed to be.

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Tom C.

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What I want. --> http://www.videokarma.org/showpost.p...62&postcount=4

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