Key matrix circuit ... Help

[funky2x]

I need some help to put this circuit into work ..
any idea of pcb design ....
am not good at this matrix

 

[nigelwright7557]

You need 4 off the isolating protection diodes in case two or more keys are pressed at once.
Also the lower diode should be in the same place as the upper two.

 

[funky2x]

still nothing ... thank you