[time-nuts] 5370B Question / help needed

Christopher Hoover ch at murgatroid.com
Sun Jul 2 18:49:54 EDT 2017


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 at 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
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