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HP 41C Video interface test. Howto?
07-10-2020, 03:32 PM
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RE: HP 41C Video interface test. Howto?
(07-09-2020 06:23 AM)tribidouille Wrote:  The circuits at this time were big and human-repairable. Would it be possible to replace the ram or any other part, you think?

Yes, I have done this. Here's a peek inside.

[Image: 82163-60001-50.jpg]

Some parts can be found at Sphere. https://www.sphere.bc.ca/test/hpparts.html

The 2114N SRAM chips, center left in the pic, are readily available.

Dave
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RE: HP 41C Video interface test. Howto? - Dave Frederickson - 07-10-2020 03:32 PM



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