Hello, not sure if anyone can help. We have a Hitachi Seiki HT20 with Fanuc 10TE-F control.
There's no life at all on the screen. When we press the power-on button the main contactor comes on but the screen doesn't light. Around the back, the main CPU board shows an 'F'. All lights are green in the cnc cabinet, I've measured the psu test pins on the cpu and they're all spot on.
A quick google brings up the usual resellers of pcbs that will 'cure' an 'F' fault...
The machine has been idle for a few months but came on ok and did half a day's work before it turned itself off.