Ed, Check the soldering for the headers that connect the DSP module to the board. If there was a marginal solder connection, removing and re-inserting the module may have made it non-functional.
Did you use good anti-static measures when the DSP module was removed, stored while it was out of the K2 and during the re-installation? If not, the DSP module itself may have been static damaged. Swapping with a known good DSP module is the best test if you can find a local with a module. I have no other suggestions at the moment. 73, Don W3FPR Ed K wrote: > My KDSP2 has operated very well over the past 2 years and four months since I > built > it... until last Saturday. I had removed it to work on the front > panel, installing indicator LEDs in the key caps as per the LA3ZA mod which > went very well. When I reassembled > the rig to test out the mods the KDSP2 was not functioning properly. > With the module removed and replaced with a unpcb bypass board, audio is > restored. I have made no changes to the DSP2 module and I do take the > precaution of working with my grounded static drain mat and wrist band. > > The KDSP2 LED stays on instead of extinguishing after a few seconds which > indicates that communication is down. I verified that all connectors > and pins are aligned properly and the battery measures 6 V. With the KDSP2 > installed, even though > the LED stays on, I am able to cycle through the filters using the > XFIL/AFIL Front Panel switch... but, no audio. > > I seem to remember this problem coming up once but can't recall what to do to > cure > it... wish I had written it down when I had come across it before. It > seems that it is something simple that I am overlooking. > > I appeal to your collective wisdom in solving this problem... Thanks, > > > ______________________________________________________________ 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
