[time-nuts] Cheap 5370A on eBay
Mark Sims
holrum at hotmail.com
Sat Dec 20 03:40:41 UTC 2014
I believe there are 5370 ROM dumps on KO4BB.COM
I few years back i posted on this forum how I restored a 5370A that had a missing ROM board by installing an EEPROM into the empty socket on the CPU board. I did have to jumper a couple of address lines to the EEPROM and perhaps tweak the data buffer enable signal... it's been a while. The 5370A normally uses a separate ROM board containing the firmware in several ROM chips. I read out those chips from a good machine and merged the data into a single EPROM.
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