This is a very common problem... basically the fan blows directly down the chassis onto the front panel area where a large dust bunny builds its nest. The switches are gold plated leaf springs that slide on a gold plated circuit board. They are open to the environment and collect all sort of dust and schmutz. If you need to troubleshoot the unit, I have a few extender card kits left... $30+shipping for the three board set. Two 44-pin boards are used to extend a card from the mainframe and there is a 36 (?) pin card that can be used with the front panel or oscillator buffer card.. ------------------- > One other observation, probably related: After powerup it took several vigorous switch activations of the COM/SEP switch before the thing swung into action at all

HI Mark, > If you need to troubleshoot the unit, I have a few extender card kits > left... $30+shipping for the three board set. I'm interested. Waht is the shipping to 94040 residential? Thanks, -ch 73 de AI6KG On Sat, Jul 1, 2017 at 1:23 PM, Mark Sims <holrum@hotmail.com> wrote: > This is a very common problem... basically the fan blows directly down > the chassis onto the front panel area where a large dust bunny builds its > nest. The switches are gold plated leaf springs that slide on a gold > plated circuit board. They are open to the environment and collect all > sort of dust and schmutz. > > If you need to troubleshoot the unit, I have a few extender card kits > left... $30+shipping for the three board set. Two 44-pin boards are used > to extend a card from the mainframe and there is a 36 (?) pin card that can > be used with the front panel or oscillator buffer card.. > > > ------------------- > > > One other observation, probably related: After powerup it took several > vigorous switch activations of the COM/SEP switch before the thing swung > into action at all > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/ > mailman/listinfo/time-nuts > and follow the instructions there. >

sorry, folks. i meant to sent that directly to mark. On Sun, Jul 2, 2017 at 3:49 PM, Christopher Hoover <ch@murgatroid.com> wrote: > HI Mark, > > >> If you need to troubleshoot the unit, I have a few extender card kits >> left... $30+shipping for the three board set. > > > I'm interested. Waht is the shipping to 94040 residential? > > Thanks, > -ch > 73 de AI6KG > > On Sat, Jul 1, 2017 at 1:23 PM, Mark Sims <holrum@hotmail.com> wrote: > >> This is a very common problem... basically the fan blows directly down >> the chassis onto the front panel area where a large dust bunny builds its >> nest. The switches are gold plated leaf springs that slide on a gold >> plated circuit board. They are open to the environment and collect all >> sort of dust and schmutz. >> >> If you need to troubleshoot the unit, I have a few extender card kits >> left... $30+shipping for the three board set. Two 44-pin boards are used >> to extend a card from the mainframe and there is a 36 (?) pin card that can >> be used with the front panel or oscillator buffer card.. >> >> >> ------------------- >> >> > One other observation, probably related: After powerup it took several >> vigorous switch activations of the COM/SEP switch before the thing swung >> into action at all >> _______________________________________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to https://www.febo.com/cgi-bin/m >> ailman/listinfo/time-nuts >> and follow the instructions there. >> > >