SINUMERIK 880T GA2 PROBLEM IN START

I' ve a problem in START Sinumerik 880T GA2.

When, Power-up the control diagnostic on operator panel, appears on the screen

the diagnostic display an error in application BAS-DIO (yellow highlight)

The LEDs on the CPU in the operator panel (OP CPU) the four LEDs flashing simultaneously on the operator panel.

In Board INT-KEYBORD the led is yellow highlight

In board PLC-CPU the led is on

In board INT/DMP the led in on

I chance the OP-CPU (6SN1120-4BD03) on operator panel.

I check the connection between the operator panel and NC (check de cable)

I chance power supply in OP and NC

the error in application BAS-DIO is present.

Can someone help me?