GI should work independent of CPU problems.
Are all Gi strings out?
Transistor for lower PF G.I relay had locked on last time, energizing GI relay permanently when the machine was on and turning G.I off.
to prove this is the case with machine off unplug J12 on driver board, turn machine on, if G.I illuminates then the transistor on the cpu driver board has failed (Q9)
