Woodstock self-test?

[rprosperi]

(04-12-2019 09:24 PM)striegel Wrote:  Is there a key sequence that launches a self-test on the HP-21 Woodstock?

This is my first HP LED calculator, as I've concentrated on LCD models previously. Those have test sequences that have been pretty well documented on the RSKEY site page.

Alan

Woodstocks definitely do not have any built-in diagnostics, however there are folks here (not me) that know it inside and out, so if you're having an issue, post the most detailed notes you can about the symptoms, observations, etc. and it's likely someone here will recognize the symptoms and be able to diagnose the problem for you, or at least suggest additional things to try to narrow the focus further.

A key thing to know is if the unit was ever powered with the AC adapter without a 100% known-good battery pack properly installed - and btw, never, ever do that; in fact it's best to charge the batteries outside the unit at all times.

HTH