> First, switch on LCD digital oscilloscope. >=20 > Second apply channel one probes to circuit to be tested. >=20 > Third - puzzle at how 21vdc can appear both in digital and old fashioned > graticule counting for a circuit powered by 12vdc. >=20 > Fourthly - scratch head vigourously. >=20 > Fifthly - wonder if major storm and subsequent power cuts might have > damaged something or more likely someone else has fiddled with settings. >=20 > Sixthly - stomp around workshop demanding to know who has touched my > personal equipment (that is I own it, not company provided) >=20 > Seventhly - struggle to remember which umpteen menus affect the setup of > the scope. >=20 > Eighthly -- double check that scope is set up for X10 in software - it is= .. >=20 > Ninthly - test probes using the 5v 1kHz calibration point. >=20 > Tenthly - reading equals 26vdc @ 1kHz with trigger point of 9v7. >=20 > Eleventhly - check channel 2 - even more weird results. >=20 > Twelfthly - scratched head even more - stomp around workshop, demanding > explanations, none all that helpful or illuminating forthcoming. Complain > about other peoples lack of respect for other peoples tools. >=20 > Thirteenthly - suddenly realise that somehow or someone has moved the pro= be > X10 button to X1 - much swearing-in-the -field (not, much-binding > -in-the-marsh - old radio comedy). Unable to explain why channel two was > also affected. >=20 > Fourteenthly - feel like an idiot for not checking the physical probe > setting earlier - continue to remind people not to touch other peoples > equipment. >=20 > Fifteenthly - potter off to have a cup of tea and reflect upon day so far= .. >=20 Oh dear, all those ozzy bush fires and floods getting to you Colin ??= ? --=20 Scanned by iCritical. --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .