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hp 41 c repair



#2

hp 41c # 2428S41113 abruptly stopppd computing. batteries ok. only a few characters show on the display; 10s on the left side of the display and exponents, 1, 2, etc on the far right of the display. no other numbers or computation. was repaired once some years ago. where can I send it for repair and the approximate cost? thanks.


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