Halcyon 801a user / service manual

Thread Starter


Joined Apr 19, 2007
Hello again all...

A while ago, I came across a Halcyon 801A Data tester and bought it very cheap (I think around £12). It has been in storage for around a year. It has a problem that stops it from booting up, and just flashes characters across the screen. I did sit for a few evenings a while back and go through it, but the service manual would make it so much easier.
I have searched the web with no luck. If anyone can help, it would be great.

Thank you.



Joined Sep 20, 2010
I have one of these units and I also need a manual. I tried calling the company that took over Halcyon products, as well as one of the former owners. No luck what so ever... On eBay I found a used manual that was copied but it is for another Halcyon Model 801B Data Monitor.

I am now going through this manual to see how much of it matches the 801A. I also am continuing my search for an actual Operators and Service manuals.

Best regards,