Hi Mike, Thanks for your response and attention to my issue.
Yes, it is only the buttons to the right of the LCD that are affected. All of the pots to the left of the VFO knob work properly, as do all the push buttons on the left (BAND+ through NB). To the right of the LCD, I can only confirm the MODE(1) and ON/OFF buttons work. Buttons A/B(2) through MSG(9) do not elicit a response. Unable to test the -1 0 +1 potentiometer, as I think all of it's functions require actuating one of the buttons on the keypad. To summarize, buttons 2 through 9 on the keypad are nonfunctional, and everything else seems to work. Thanks and 73, Bill KN6UDK > On Aug 7, 2024, at 8:23 AM, Michael Carter via Elecraft > <elecraft@mailman.qth.net> wrote: > > Hi again, Bill, > > I re-read your post and realized that > it's only the buttons to the right side > of the LCD display that fail to function > (with the exception of the MODE button). > Is that correct? > > If so, I will retract my statement about > the parallel load shift register not working > properly. If it works for the buttons to the > left of the LCD display, then the shift > register is working OK. It would then > seem that the BANK2 switches to the > right of the display are not being polled. > The /BANK2 signal that polls these > switches is generated in U3, a 6B595 > shift register. That shift register > receives data serially from the MCU > and produces the /BANK1 and /BANK2 > signals that activate each switch > bank in turn. U3 also generates the > /ENC_RD signal that allows the > main tuning knob to be read. > > Please confirm which controls do > register any response, including > the 4 potentiometers to the > left of tuning knob. > > Thanks, and 73, > Mike, K8CN > ______________________________________________________________ > 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 > Message delivered to san...@mac.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 Message delivered to arch...@mail-archive.com
