Need Help! Fanuc 0TC - CNC Not Bootin up

Dear Sirs

Good Morning

We have got a machine with Fanuc 0TC (A02B-0098-B511, I95YC0521)

THIS MACHINE WAS NOT IN USE FOR A YEAR

NOW WHEN WE SWITCH ON THE MACHINE , WE FIND ONLY LINES OR STRIPES ON CRT MONITOR

LED L3 IS ON (RED) ON BACK PANEL WHICH MEANS MEMORY CARD(A16B-2201-0103) IS MISSING BUT ALL THE CARDS ARE INTACT WITH CONNECTORS

MEMORY CARD AND BACK PANEL CLEANED,MEMORY CARD REPLACED WITH NEW ONE BY RETAINING ALL EPROMS IN THEIR PLACES

Tried to switch ON with Reset and Delete kyes pressed still WE FIND ONLY LINES OR STRIPES ON CRT MONITOR ie CNC is not booting due to RED LED L3 on Main PCB

This controller does not have seperate PMC card rather it is built in

Kindly advice

Best Regards,

M. Rishikesh