Benny, I just finished my basic K1, Serial Nr 3342, with the first filter board (20m/15m). I'm amazed at how well it went. No missing parts. Every jack & plug fits with laser precision. All resistance & voltage measurements fell right on, or midrange between the manuals listed parameters. I'd go back and recheck everything. Also make sure the small mini switch (oper/cal) on the bottom of the RF board is in the "OPER" position. It makes a difference when checking the U8 pin 1 and pin 8 voltages. All alignment procedures went as stated in the manual. My VFO range is 80Khz and I ended up taking ONE turn off of coil L1 to get it down to 3.095Khz. Actual range is 84Khz. Using my SteppIR DB-18 ant my first contact was with a station in Spokane, WA on 20mtrs. Later my 2nd contact was with a station in New London, CT. An actual QSO with names, rigs, etc. Lasted 17 minutes. Power = 3W. Now to start the 2nd filter board (17/30 meters). Thank you Elecraft and Merry Christmas and a Happy New Year to All.
-----Original Message----- From: Elecraft [mailto:[email protected]] On Behalf Of Benjamin Schmid Sent: Tuesday, December 23, 2014 02:02 To: [email protected] Subject: [Elecraft] [K1] Error27 - Alignment and Test Part 1 Hi everybody, I'm currently in the middle of building my K1 #3343. Right until now everything went just fine and it's been fun to build. I'm at the point of the first power up and wanted to test the ATTN relay. The LED comes on but there ist no relay clicking. When hitting BAND I realized that band change wasn't possible and the TRX shows E27. The filter board is completely plugged in and seated correctly. Off to the manual then. Have you tried turning it off an on again: yes. No relay clicking on power up. Until then i thought that was normal. I checked the orientation of Fil-U1. Its positioned correct and completely in the socket, no bent pins etc.. I checked the voltages of Fil-U1 everything within the specified range. I checked some voltages at the MCU, not all yet, all within range or as specified in the manual. I read some older posts abt similar problems. I checked Fil-R1. It's the correct value and the solder joint seems good. I followed the hole path of the aux bus signal from Fil-U1 Pin13 up to the MCU. Resistance is just the 100ohm of Fil-R1. I redid some solder connections on the way even though they looked good, as well as all solders on all multi pin connectors. On the FP-Board FP-RFC1 is the correct value, solder joints looks ok. (It's not a resistor) Kept reading some older posts and checked the coil resistance of all relays, all about the same resistance (not sure about the actual value right now) , soldering and position of all relays ok. Right now i redid some voltage measurements. I found out that the voltage at FIL-U1-16 is somewhat unstable. The first time i measured it was well below 0.3V. This time it was around 0.6 Volts, a couple seconds later around 1.3 V while Pin 15 is at flat 0.0V as it was before. Not sure what's that supposed to tell me. Did I fry Z1 while soldering? Or is it U1 itself causing the trouble? Any ideas are much appreciated! Thanks in advance and happy holidays. 73 de DG5WJ - Benny P.S. I sent the same message twice already but somehow they showed up in the liste without any content. So I switched Mail adresses. Sorry for the spam! ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
