Front panel's U3 powers the shaft encoder, the push buttons and the pots, makes it look guilty, but it has nothing to do with the LCD display which also fails once every 5 power ups.
The control board seems to initialize itself properly whenever the LCDs work, so that will be somewhere down on the list of possibilities. That leaves the three connecters, the front panel's P1 to the RF board, the RF board's J8 to the control board and its mate, P2 on the control board. Some open and some intermittent connections would aptly describe the problems you're experiencing. I'd focus on those connectors before doing anything else. On Sat, 6 Aug 2005 20:31:14 -0600, "Jess Gypin" <[EMAIL PROTECTED]> wrote: >Hi all, > >So far I thought I was doing great. Just to save some time I thought I would >ask the collective before I go digging for misplaced components and solder >bridges. > >I am building a K2 for a friend. I am at the first point of power up >testing. Control board, front panel and a few components on the RF board. I >got the INFO 201 for about 10 seconds, then the display flashed Elecraft and >then 7100.00 as it should. Now the problem. No front panel function. At all. >No buttons work and the frequency will not change via the encoder. Also one >in 5 power ups the LED display will light all segments and the backlight on >the display will come on, but that is all. I have done a good visual and see >no components unsoldered or shorts. I am extremely careful when building and >usually don't have any problems when building. Maybe it is just my turn. Any >and all suggestions would be appreciated. I am thinking firmware perhaps. > >Jess AE0CW <>< > > >_______________________________________________ >Elecraft mailing list >Post to: Elecraft@mailman.qth.net >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: Elecraft@mailman.qth.net 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
