Error FF3F:4C5E ?

I had just turned the XL on and chopped a break and i started to seq the sounds and i got error FF3F:4C5E, has anyone got this of know what it means ?

Thats cool i just shit myself cause i got the XL new and when i got it home the screen was busted out the box, then i just get it back and im getting error codes.

Ooh snap, my classic has only frozen twice before and it was while trying to purge large sample sessions.

hmm, fortunately i haven't had any of these issues. i've had my mpc2000XL freeze up. i just walk away for a whle to come back to it functioning right again. i had this message on my 2000 classic when i was doing too much sequence editing too fast

i got it a bit when sequencing from a juno`106, was something to do with data overflow, cause the juno sent out a shit load of junk SYSEx data.