On Sun, Jan 8, 2012 at 7:49 AM, <gandal...@aol.com> wrote: > Hi Roy > > If your unit is generating an output as you report, without 5 volts to pin > 4, then I'd leave well alone. > > On the current batches of cheaper units, that do require a 5 volt supply to > pin 4, they won't lock or provide an output without it.
If you look inside, on some units there is a voltage regulator and on other units there are bare solder pads where the regulator and some capacitors would go. My guess is that if you got the bare pads you need to supply 5V. The reverse may not be true, I've read a report of a regulator that was installed but disconnected. I think these FE5680 units were all built to customer specs and each batch of a few thousand units is different. I wish there were some rule that when you change a product to have to change the part number but there is no such rule Chris Albertson Redondo Beach, California _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
