Hi All.
I have one of the ebay 4 axis TA8435H boards.
It was working ok with my machine and PC,then few days ago mach 3 started freezing the PC every time i tried to load it, i began to mess around with diffrent settings like paralel port mode (ECP,EPP,ECP+EPP...), re-installed mach3 and so on.
i got mach3 to run again but now i get no response from my board, tried many many diffrent pin settings,tried to configure just one motor to work but NADA, the board is on - i see some red LED's, but the ones that should work when one of the axis is moving never turn on.
Also the motors are not in step hold if thats how it's called- i can move them by hand when the board is on,this was not possiblle before.
how can i tell if i blew my board,or my paralel port or somthing else,i'm quit desperate at the moment and dont know what else to do

I did some more tests and found out this:
when an axis is moving in the software the correspondinf motor cant ve moved by hand and i read voltage in the board motor terminal,but the motor does not turn (smae on for all 4 motors)
how can i diagnose if it's a problem with board or the paralel port?
thanks
Eran