> >If totally confused, change the test gear. (;-) > Ha- no, if totally confused, change the engineer!
Seriously- this is Debug 101: know the root-cause before proposing a solution. (or as the classic Dilbert strip reads: "first, identify the problem, then find a solution") Exchanging components of the EUT System is a classic method to identify which component is contributing to the fault. Once the engineer knows which component is contributing, then s/he can focus efforts on that bad component. Starting debug without identifying the subsystem at fault is rarely successful. From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of John Woodgate Sent: Wednesday, January 06, 2010 9:06 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] ESD Test Failure of Stainless USB Mouse In message <769907F0D19EFA45BD6F04FC6E896D6D220970D160@GVW0538EXC.americas.hpqcorp.n et>, dated Wed, 6 Jan 2010, "Conway, Patrick R (bNB Houston)" <p.con...@hp.com> writes: >1- Keeping all other parameters the same, swap the mouse, re-test, >then swap the PC, and re-test. > >a. use a completely different mouse type and completely different >PC. > >b. Try to determine if the problem follows the mouse or follows >the PC. If totally confused, change the test gear. (;-) -- OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK I should be disillusioned, but it's not worth the effort. - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <emc-p...@ieee.org> All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <emcp...@socal.rr.com> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com> - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <emc-p...@ieee.org> All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <emcp...@socal.rr.com> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com>