Was the board installed and in service, and functional, or is this DSP newly built, and you are troubleshooting it? -
David Wilburn [EMAIL PROTECTED] K4DGW K2 S/N 5982 On Wed, 2007-11-14 at 13:53 +1100, KBG Luxford wrote: > I am trying to find a fault in my KDSP2. Do circuit diagrams of the two > boards exist with higher resolution of the logic signals? Many of the > signals in the diagrams in the manual seem to be done with a low > resolution dot matrix printer and they are awfully hard to read. > > The LED lights up and does not go out. In menu, RTC can be turned off > or on, but when on, no DSP menu can be accessed. Repeated holding AFIL > cycles through the filters. SSB signals are heard in the speaker but > sound as if they come through a narrow filter, or are distorted. I am > trying to trace the lines from the on board connector pins to their > connections on the board. So far, I have only found a missing link from > pin 20 of J2 to U7 which I have repaired. > > I have tried a new microcontroller U1, but no go. > > Maybe the simplest way out of this is to buy a new KDSP2. > > 73 > Kevin > VK3DAP / ZL2DAP > _______________________________________________ > Elecraft mailing list > Post to: [email protected] > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
