Hi, I have been able to find an answer to most of my questions in the FAQ . 
but this time I cant find what I need to know.

Have a heap of pcb's to repair . and have got most going, but I have a 
couple where I suspect the micro . an NEC uPD78233GC.

Each board has a 27C256 eprom and the boards are expensive to replace . 
AUD$1600 .

>From the data sheet I understand that the 78233GC doesn't have any on-board 
ROM . so my question is .

Is it fair to suggest that I should be able to simply replace the micro and 
expect it to work still .. or is it likely that the micro would have to be 
an original . coz it seems there's no chance of getting a factory one !!!

Thanks for any help.       Regards, RDW 

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