Hello to those with the lights on...
Does the screen come on at all? Even a milli sec? Put your hands around your eyes and get close to the screen, it might actually be on.
Let me get this right... you have
g1 | g2
g3 | g4 (g-green)
All greens on
off | off
off | r4
only this red is on.
If so then this is SRAM parity. The four greens mean "Initial status immediately after power is switched on; boot is running."
My advice would be to hold down the two furthest right soft keys under the screen (6&7).
If there is a Parity error, it will alarm out in here.
Sorry if i have mis read.
The Fanuc Support Center Team
www.fanuc-support.com