[Repeater-Builder] Racom Station Identifier

[mzfb2001]

Hi all
  I have a Racom 1300 morse code station Identifier. I am looking to see if 
there is a way to reprogram the Prom in the unit. The company is no longer 
active. The prom contains the call sign information. I know I could throw it in 
the trash and buy something new but I hate doing that when all it would take is 
to reprogram the Prom. Is there a way to read the prom and then change the 
information in it and then program a new prom provided I can find a new one.
Thanks in advance
Mike