It was actually one of your earlier posts (thanks!) that prompted me to inject the IF signal before and after the IF Amp. At that point I had pulled out lot of hair and lost sleep over a low sensitivity K2.
As to when the solder bridge got there... I'm not 100% certain that a bridge was the problem. But after I realized that the IF Amp was not amplifying I went over the solder points around the chip (I actually removed the chip and installed it again). The radio then started to work. It was actually a bit of a surprise since I never saw the problem - especially since I looked very closely at all the points through an amplifying glass many times before AND since all the voltages at MC1350 measured at specs while I had the problem. It was just the IF signal that wasn't amplifying leading me to at first think that the chip itself was defect. I only assume it was a solder bridge. And if that's the case it was probably made by me. Are - LB3SA TF3KX wrote: > > Just out of curiosity... > > Where was that solder bridge on the MC1350? Was it already on the SMD > assembly when you received it, or was it something you caused by your > soldering? > > The reason I ask is that I had a problem with my SMD MC1350, never found > out what caused it, and just replaced it. If there is something there to > watch out for, it may help others... > > 73 - Kristinn, TF3KX > -- View this message in context: http://www.nabble.com/K2---signal-loss-in-band-pass-filter-tp17294418p17628522.html Sent from the Elecraft mailing list archive at Nabble.com. _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
