My K2 #771 has a KIO2 that has no serial data output. This appears to be due to a problem ... in the other direction.
I can see my inbound ASCII commands (e.g., FA;) at pin 6 of U1 on the KIO2 board. However, the MAX1406 shows only rail at the corresponding TTL side. I presume the MAX1406 has popped ... It would be great if I could see if it worked "the other way" in other words, if the K2 could somehow be made to send at least something out the TX port without being prompted. As you can see, because the KIO2 appears to not be able to send the received data to the main MCU, I can't get the MCU to speak. All other radio features operate perfectly. #771 will be 20 years old this December. Any ideas? Other than the obvious 'replace the MAX chip and see what happens.' Steve KZ1X ______________________________________________________________ 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
