Re: [Elecraft] [K2] Initial Power Up Test Partial Failure
Ed, That is not something I have seen before, but perhaps the EEPROM contents have become corrupt. Since you so not have refined menu settings entered yet, I would suggest you try a Master Reset - hold the 4, 5 and 6 buttons in while powering the K2 on. The other thing you could try is to do a Direct Frequency Entry for each band. Hold the BAND+ and BAND- buttons together and then enter a frequency within a ham band. Continue for each band. 73, Don W3FPR On 11/6/2012 1:33 AM, Edward Kleckner wrote: I think I need some help. After having a K2 (SN 6280) sitting unmade for 5 years, I finally got started on it and have reached the Alignment and Test, Part 1 stage. When powered up, I get Elecraft and then the frequency display. However, using band+ and band- I can only see 10, 12, 15 meters - 17m tunes but not to the proper freq. 20-80m all just say 15151. for freq. although the number of significant digits can be changed with the tuning Rate pushbutton and the mode change works. the menu button works, as does A, B, rit xit, display of voltage and current is normal. relays click with band changes even when moving through the lower bands when they just display the 15151 reading. All resistance checks for front panel and control boards are normal. Regulated 8 and 5 volts are correct. The 4 mhz oscilator is running. The voltages on the IOC on the rf board are normal. Each time I press band+ (or band-), pin 28 of the IOC dips from the nominal 5v as it should. One other thing: the pre/att switch does not trigger the associated relays and there is no signal on pin 28 of the IOC. (This may be unrelated to the band problem) Voltage checks of the MCU are normal with the exception of: pin 18 is 5v instead of 0v, pin 25 is 5v instead of 0v, pin 33 is 0v instead of 5v. However this may be perfectly normal as the rf board is only minimally built and the table is for a fully built unit. Needless to say, I have checked carefully on the three boards for bad joints, unsoldered joints, or bridged joints, although it is certainly possible i have missed something. At this point I know AUX bus signals are going to the IOC (or at least the voltage is fluctuating when the panel buttons are pressed) so I am left wondering if either 1) the IOC is not working correctly, or 2) the MCU is not sending the proper signals. Or -- some other explanation? Any help someone could provide would be greatly appreciated. Ed Kleckner Hansville, WA ekl...@hotmail.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 __ 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
[Elecraft] [K2] Initial Power Up Test Partial Failure
I think I need some help. After having a K2 (SN 6280) sitting unmade for 5 years, I finally got started on it and have reached the Alignment and Test, Part 1 stage. When powered up, I get Elecraft and then the frequency display. However, using band+ and band- I can only see 10, 12, 15 meters - 17m tunes but not to the proper freq. 20-80m all just say 15151. for freq. although the number of significant digits can be changed with the tuning Rate pushbutton and the mode change works. the menu button works, as does A, B, rit xit, display of voltage and current is normal. relays click with band changes even when moving through the lower bands when they just display the 15151 reading. All resistance checks for front panel and control boards are normal. Regulated 8 and 5 volts are correct. 4mhz osc is running. voltages on the IOC on the rf board are normal. each time I press band+, pin 28 of the IOC dips from nominal 5v as it should. One other thing: the pre/att switch does not trigger the associated relays and no signal on pin 28 of the IOC. Voltage checks of the MCU are normal with the exception of: pin 18 is 5v instead of 0v, pin 25 is 5v instead of 0v, pin 33 is 0v instead of 5v. However this may be perfectly normal as the rf board is only minimally built and the table is for a fully built unit. Needless to say, I have checked carefully on the three boards for bad joints, unsoldered joints, or bridged joints, although it is certainly possible i have missed something. At this point i know AUX bus signals are going to the IOC (or at least the voltage is fluctuating when the panel buttons are pressed) so I am left wondering if either 1) the IOC is not working, or 2) the MCU is not sending the proper signals. Any help someone could provide would be greatly appreciated. Ed Kleckner, N7YQR Hansville, WA ekl...@hotmail.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
Re: [Elecraft] [K2] Initial Power Up Test Partial Failure
Don - thank you for your suggestions. It turned out that I couldn't do a Master Reset as the 4 key is the ATT/PRE key as well and that wasn't working. So I resoldered that switch's contacts and was able to do a reset and initialize the eeprom. At that point it passed all part 1 tests. I also want to thank Alan for his suggestion of doing a reset. Onward... This list is the greatest help. 73 Ed Kleckner, N7YQR Hansville, WA ekl...@hotmail.com Date: Tue, 6 Nov 2012 07:39:04 -0500 From: w3...@embarqmail.com To: ekl...@hotmail.com CC: elecraft@mailman.qth.net Subject: Re: [Elecraft] [K2] Initial Power Up Test Partial Failure Ed, That is not something I have seen before, but perhaps the EEPROM contents have become corrupt. Since you so not have refined menu settings entered yet, I would suggest you try a Master Reset - hold the 4, 5 and 6 buttons in while powering the K2 on. The other thing you could try is to do a Direct Frequency Entry for each band. Hold the BAND+ and BAND- buttons together and then enter a frequency within a ham band. Continue for each band. 73, Don W3FPR On 11/6/2012 1:33 AM, Edward Kleckner wrote: I think I need some help. After having a K2 (SN 6280) sitting unmade for 5 years, I finally got started on it and have reached the Alignment and Test, Part 1 stage. When powered up, I get Elecraft and then the frequency display. However, using band+ and band- I can only see 10, 12, 15 meters - 17m tunes but not to the proper freq. 20-80m all just say 15151. for freq. although the number of significant digits can be changed with the tuning Rate pushbutton and the mode change works. the menu button works, as does A, B, rit xit, display of voltage and current is normal. relays click with band changes even when moving through the lower bands when they just display the 15151 reading. All resistance checks for front panel and control boards are normal. Regulated 8 and 5 volts are correct. The 4 mhz oscilator is running. The voltages on the IOC on the rf board are normal. Each time I press band+ (or band-), pin 28 of the IOC dips from the nominal 5v as it should. One other thing: the pre/att switch does not trigger the associated relays and there is no signal on pin 28 of the IOC. (This may be unrelated to the band problem) Voltage checks of the MCU are normal with the exception of: pin 18 is 5v instead of 0v, pin 25 is 5v instead of 0v, pin 33 is 0v instead of 5v. However this may be perfectly normal as the rf board is only minimally built and the table is for a fully built unit. Needless to say, I have checked carefully on the three boards for bad joints, unsoldered joints, or bridged joints, although it is certainly possible i have missed something. At this point I know AUX bus signals are going to the IOC (or at least the voltage is fluctuating when the panel buttons are pressed) so I am left wondering if either 1) the IOC is not working correctly, or 2) the MCU is not sending the proper signals. Or -- some other explanation? Any help someone could provide would be greatly appreciated. Ed Kleckner Hansville, WA ekl...@hotmail.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 __ 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
[Elecraft] [K2] Initial Power Up Test Partial Failure
I think I need some help. After having a K2 (SN 6280) sitting unmade for 5 years, I finally got started on it and have reached the Alignment and Test, Part 1 stage. When powered up, I get Elecraft and then the frequency display. However, using band+ and band- I can only see 10, 12, 15 meters - 17m tunes but not to the proper freq. 20-80m all just say 15151. for freq. although the number of significant digits can be changed with the tuning Rate pushbutton and the mode change works. the menu button works, as does A, B, rit xit, display of voltage and current is normal. relays click with band changes even when moving through the lower bands when they just display the 15151 reading. All resistance checks for front panel and control boards are normal. Regulated 8 and 5 volts are correct. The 4 mhz oscilator is running. The voltages on the IOC on the rf board are normal. Each time I press band+ (or band-), pin 28 of the IOC dips from the nominal 5v as it should. One other thing: the pre/att switch does not trigger the associated relays and there is no signal on pin 28 of the IOC. (This may be unrelated to the band problem) Voltage checks of the MCU are normal with the exception of: pin 18 is 5v instead of 0v, pin 25 is 5v instead of 0v, pin 33 is 0v instead of 5v. However this may be perfectly normal as the rf board is only minimally built and the table is for a fully built unit. Needless to say, I have checked carefully on the three boards for bad joints, unsoldered joints, or bridged joints, although it is certainly possible i have missed something. At this point I know AUX bus signals are going to the IOC (or at least the voltage is fluctuating when the panel buttons are pressed) so I am left wondering if either 1) the IOC is not working correctly, or 2) the MCU is not sending the proper signals. Or -- some other explanation? Any help someone could provide would be greatly appreciated. Ed Kleckner Hansville, WA ekl...@hotmail.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
