41CL and the Time Module - Printable Version +- HP Forums (https://archived.hpcalc.org/museumforum) +-- Forum: HP Museum Forums (https://archived.hpcalc.org/museumforum/forum-1.html) +--- Forum: Old HP Forum Archives (https://archived.hpcalc.org/museumforum/forum-2.html) +--- Thread: 41CL and the Time Module (/thread-212332.html) |
41CL and the Time Module - Gerry Schultz - 02-22-2012 I just bought a 2nd 41C Time Module from eBay (I can write that now, right?) since my first one is tied up with my 41CL. I know the Time Module uses unique hardware which makes it difficult to emulate in the 41CL. Here's a random thought. Could Monte, if he wanted to, rework the 41CL MB such that I could take apart a Time Module and plug the circuit board directly into the CL MB? I know that's a lot of work for Monte to re-engineer the circuit board, but is this practical?
Gerry Edited: 22 Feb 2012, 3:40 p.m.
Re: 41CL and the Time Module - Monte Dalrymple - 02-22-2012 You can already do this. The Time Module PCB doesn't "mount" on the 41CL board, but it will fit in the channel between the side of the case and the battery compartment. You can then solder wires from the Time Module board to the 41C bus, either on the main PCB or to the appropriate spots on the 41CL board. I seem to recall a forum message that had a photo of exactly this modification a little while ago. Re: 41CL and the Time Module - Diego Diaz - 02-22-2012 Hi, It's not just about installing the TIMER inside the CL but applying a small mod by including one capacitor and one diode to extend a bit the time allowed to replace the batteries without loosing the contents of the TIMER registers. It does however show how the TIMER module is placed into the CL case. Here you'll find the referred post. Hope this helps. Diego.
PS. Just in case you don't have a use for the removed TIMER module shell and connector, I'll gladly accept them for a new life housing one of my project's modules... ;-) Contact me please.
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