Bad battery contacts can be an absolute expletive deleted. I once had a flashlight where the only way I could get the battery to connect was to put a small coin on top of the battery - or should I say on top of the top cell :-) On 23 February 2015 at 11:23, Justin Richards wrote: > One of my early faults that kept me testing for a long time was a dry joi= nt > that worked fine when the pressure of the logic probe was applied. It was > not obvious to me at the time because I had to remove from the brd from t= he > rest of the system to probe. > > On 23 February 2015 at 19:14, Lee Mulvogue wrote: > > > Well whadya know [shameface] > > Could have sworn I tested all possible scenarios, but I just went back > and > > retested, and it worked with the multimeter switched off. Then it work= ed > > with just the one probe at the positive end. Then worked with another > > metal instrument touching. I must be getting a miniscule air gap in > there > > somewhere, have to see if I can pad it out somehow. > > That was actually the very first thing I thought of, but I could have > > sworn all my testing seemed to indicate it was a deeper issue. > > > > I'll just be going over to this corner to hide. > > > > Thanks > > Lee > > > > > > > David C Brown wrote: > > >Probably too obvious but. Are the battery contacts weakso pressing wi= th > > >the meter probe squeezes them enough to make contact.? > > > > > > -- > > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > > View/change your membership options at > > http://mailman.mit.edu/mailman/listinfo/piclist > > > -- > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > --=20 __________________________________________ David C Brown 43 Bings Road Whaley Bridge High Peak Phone: 01663 733236 Derbyshire eMail: dcb.home@gmail.com SK23 7ND web: www.bings-knowle.co.uk/dcb --=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 .