Mark, Pin 5 of U2 provides ALC threshold voltage to the emitter of Q1 on the KSB2 board. The 5.89 V you measured on Pin 5 suggests that the DAC input register B didn't properly load the data word from the MCU. I would check the solder joints on all U2 pins and Pins 14, 16 and 17 of the MCU socket.
73, Mike, K8CN -- Sent from: http://elecraft.365791.n2.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 Message delivered to arch...@mail-archive.com
