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What is likely wrong

Dinosaurie19

Feb 16, 2023
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What is likely wrong, when I take a metal object and bridge the connection (1 and 2 see picture) the electrical thing work, I’m just a dumb Swede thanks for help
 

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Harald Kapp

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The photo is not all to clear, but ist seems like the 3-pin components is a transistor or a voltage regulator that may no longer work correctly.
I can't find a likely replacement from the markings alone :(
 
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