Key board failing???

#1

Hi,
I am using q24plus modules for my applications.
I am using keypad pinouts given y q24pl modules for my keyboard.
Unfortunately i found that the keypads which is connected with the pinouts is experiencing an arcing effect.
This causes my key board to fail.
Kindly let me know if anyone is having similar kind of problems.
Also suggests me if there is any solution for the same.