Matthew,
Meade sells complete motors on their Outlet site for
about $15 a set. These are for the DS series scopes
not the DS2000.
Meade uses off the shelf encoder components as far as
I know. The LED's and other parts should be available
at any GOOD electronics retailer.
You might look at the robo-scope group for schematics
and or pictures of the motors. I know I have seen them
somewhere on the web but can't remember where just
now.
Jerry in Arizona

--- matthew_w100 <matthewwilliams@...>
wrote:

> As ever, thanks Jerry.
>
> I'm guessing, than, that the two wire plug is the UV
> LED (which looks
> fine) and the three wire on is some sort of
> photo-sensitive
> transistor? Trouble is this just looks like a bare
> header plug shell
> - no sign of semiconductors. Maybe the sensor has
> fallen off. I
> shall have to have a look-see what I can find.
>
> If the worst comes to the worst, is there anywhere I
> can get new
> components? Or should I just abandon the goto
> function and just point
> the scope manually? As a beginner should!
>
> Matthew
>
> --- In Meade-DS-Telescopes@yahoogroups.com, Jerry
> <crazyj1251@...> wrote:
> >
> > Matthew,
> > The encoder is what causes the motor unit fault.
> There
> > is a light emitting diode that the encoder must
> spin
> > near. When the encoder blocks the light the
> computer
> > sees it as a turn of so many degrees at the motor.
> If
> > the diode or encoder are not working correctly the
> > computer doesn't see the motor spin and gives the
> > message.
> > Most of the time the encoder wheel itself is dirty
> or
> > has grease blocking the windows in between the
> flats.
> > Rarely but possible the diode will go out. It
> gives
> > off ultra-violet light so don't look for it, you
> can't
> > see it without certain filters.
> > Clean and align the encoder wheel first and see if
> > that fixes it.
> > The diodes can be had at Radio Shack I am told but
> I
> > have not gone and looked for them.
> > Jerry in Arizona
> >
>
>
>




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