[HeathKit] SB-634 Update

[Carl Hyde]

Hi Elden and all that replied. Last night I started to
seriously look at the SB-634 and cleaned all the pots
and switched with de-oxit. I did as Elden said and the
clock began counting up. All the displays worked ok
except the most significant digit of the minutes
display. it would not increment. So I did what any
good digital technicial will do, I rocked all the
chips and after removing the indicator panal I pulled
the digital readouts out and into the sockets a few
times. After that the clock increments properly in
that it will register the full count of minutes. The
only remaining glitch is that when you use the set
swuitches the minute MSD will still not increment even
though it register the proper numbers if you just let
it count up. When I hold down the minute set switch it
counts up to 09 then rolls over to 01. I noticed that
there is no batter backup for the clock so I assume if
you unplug it or lose power you have to re-set it? So
thanks for the advice as always.

--- "Elden P Laffoon, Sr." <kb9oex at juno.com> wrote:
> Carl,
>   I've got a 634 also.  Reach behind the console and
> you'll find several
> spring-loaded black slide switches.  In one smooth
> stroke, push the two
> switches to the far right (as the 634's front faces
> you) down at the same
> time ONCE.  This will activate the clock elements.
> You'll see 0's, then
> the seconds will start to register.  The first
> switch is for seconds, the
> second for minutes and the third is for hours.
>
> 73's,
> Elden
>
> On Wed, 13 Oct 1999 12:51:07 -0700 (PDT) Carl Hyde
> <cshyde at yahoo.com>
> writes:
> > I recently purchased a complete SB-104A station
> from
> > an estate that has every conceivable feature. Last
> > night I finally cleared off a bench to test it out
> and
> > get it working. Everything seems to work fine
> except
> > the SB-634 Station Console. When I plugged it in
> the
> > clock came up with all 8's in the display. I guess
> > this means all segtments are turned on. The clock
> > doesn't increment and the set controls have no
> effect.
> > Before I open it up and break something does
> anyone
> > have a suggested place to start?  I have the
> manual.
> > Thanks for the help as always.
> >
> >
> > =====
> > Carl S.HYDE
> > W2CSH
> > cshyde at yahoo.com
> > Eagles May Soar, But Weasles Never Get Sucked Into
> Jet Engines!
> >
> > Politics: From the Greek word Poli, meaning many
> and
> > the word tics, meaning blood sucking parasites.
> > __________________________________________________
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>
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=====
Carl S.HYDE
W2CSH
cshyde at yahoo.com
Eagles May Soar, But Weasles Never Get Sucked Into Jet Engines!

Politics: From the Greek word Poli, meaning many and
the word tics, meaning blood sucking parasites.
__________________________________________________
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