FlexPendant Touch Screen Problem

Hi everyone,
I have a SX-TPU1,all functions works but touch screen not works.I have tested touch screen ok! motherboard not ok.
What chould be the problem?I'm waiting for your help.
Thank you..
I have a SX-TPU1,all functions works but touch screen not works.I have tested touch screen ok! motherboard not ok.
What chould be the problem?I'm waiting for your help.
Thank you..
Comments
The GTPU1 FlexPendant screen calibration can not be started using the stop and III buttons only on GTPU3 (maybe the GTPU2 not sure).
If you have RobotWare 5.07.08, 5.08.04, 5.09.03 or later you can calibrate the screen from the control menu, there is also a console command that can be used if the calibration is so bad you can not access the menu (again only if you have the above RW versions or later).