That was my immediate thought, but I thought it too obvious to suggest as he'd have already checked that! Sorry Lee! Chris On Mon, Feb 23, 2015 at 10:00 AM, David C Brown wrote: > Probably too obvious but. Are the battery contacts weakso pressing with > the meter probe squeezes them enough to make contact.? > > On 23 February 2015 at 09:33, Lee Mulvogue wrote: > > > OK, bit of a bizarre one, I recently purchased for my 4yo son (and yes, > > myself) a very neat little RC car, the WLToys L939. Went great for a > > while, but I believe the transmitter got dropped and now it (TX) won't > > turn on. > > > > Here's the bizarre part, and was hoping someone could come up with an > > explanation and/or a fix, however hacky that may be. I've tried pullin= g > > it all apart to check for obvious issues, and in the process of checkin= g > > voltages at various points, to see if power was getting to the board > etc., > > I have found that when measuring across all four AAs all of a sudden th= e > > transmitter powers up and can control the car. Stop measuring, power > > goes. > > > > Any thoughts on what could be happening here, and how I could hack it t= o > > fix? Using rechargeable AAs, so I guess a bit of parasitic drain > wouldn't > > be too much of an issue if need be, better than a usesless transmitter > and > > thus car? > > > > Thanks > > Lee > > > > -- > > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > > View/change your membership options at > > http://mailman.mit.edu/mailman/listinfo/piclist > > > > > > -- > __________________________________________ > 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 > > -- > 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 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .