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Forum: µC & Digital Electronics Circuit board TRSQW3 in EWM Stick 200H


Circuit board TRSQW3 in EWM Stick 200H
von Peteris C. (peteris_c)

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Hello,
I have faulty EWM Stick 200H welding with circuit board TRSQW3.
Maybe someone have any clue, what does LED "POLA" mean? On board besides 
this one, there is also "EL.", "STRSTP", "+15V, "-15", "+5V", but I 
guess the are not so important.
I just want to understand what direction to dig.
This board seems is not very popular and not much documentation.

-Peter

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