из мануаля к клаве:
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C. Euro sign key cannot work
Euro sign will be appearde only under both of the "Office Lock" and "Num Lock" are on. Please make sure both the LEDs are on.
D. The Num lock cannot work
Please make sure the "Office Lock" is off. Num Lock works only under "Office Lock" is off
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и типа все правильно
BTW, X.B.