aandrei wrote: > > Hi, > > I knocked out C9, a big capacitor (compared to the other SMDs) while > reistalling the subRX. > It got hooked by the coax from the Aux antenna. > > My question is, what does C9 do, and what would happen without it ? > > Also any suggestions ? I never did SMD soldering, and also this one seems > tricky. It still hangs in its [upper] side connection, but it seems as the > second connection is underneath it ? >
C9 appears to stabilize the +12V coming from a switch so it is important. I once unknowingly knocked a very small SMD cap completely off a board and discovered it lying inside the K3. It took forever to find where it went but I finally did and reseated it! Yours should be fairly easy to reseat assuming the pad is not torn from the board. Since you're not familiar with SMD soldering, you may want to find someone locally to reseat it for you. I'd first remove KIO3 Main, identify both pads where it belongs, apply heat to the connected side so that the chip falls on the correct position (assuming it's not torn off) and then solder the other side. If the pad is torn, it still might be possible to use some fine wire to make connection to an adjacent connection. 73 & GL! Bill W4ZV -- View this message in context: http://elecraft.365791.n2.nabble.com/K2-K3-Operating-Tip-Using-SCAN-to-keep-an-eye-on-your-favorite-too-quiet-band-tp6331212p6334524.html Sent from the Elecraft mailing list archive at Nabble.com. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
