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| 2026-03-12: Cocopedia.com is now using a new caching system that should make things faster. Please let me know if you encounter any new issues.
2026-03-15: MediaWiki has been reinstalled and the old database and files restored. It was pretty clogged up from being upgraded so many times since 2004. I am also testing out Cloudflare to see if it can prevent the 'bot assaults that took the site down last year. OS-9 Al (talk) 21:20, 15 March 2026 (EDT)) |
EPROM Programming
I don't know how many versions were made, but mine runs off a single +5 volt supply. It does not use batteries to get the programming voltage, it uses a DC-to-DC voltage contverter to generate the +12V, +21V, or +25V programming voltage. By using a DC-to-DC converter, it allows it to work on all versions of the coco. This IS compatable with the CoCo3.
repair tip: I had my DC-to-DC converter go bad (I broke it, by overloading it, it was an accident), and I simply tested the 4 transistors and replaced the bad one(s). With the price of these small signal transistors, you're probably better off to just replace all of them.
I will try to get a picture of mine posted before too long. Someone contact me if I forget.
