[amsat-bb] G5500 control box issue

[Chris Thompson]

Check if the antenna rotated in the wind.  Is it tight to the mast?  This
has confused me before.

73
Chris

On Mon, Jun 1, 2020 at 12:58 PM Kevin via AMSAT-BB <amsat-bb at amsat.org>
wrote:

> David,
>    It's not clear if you have the old style G5500 or new style G5500DC,
> you say brand new be it needs to be asked.
>
>   If the old style there is a 7806 regulator in the control box that
> feeds 2 15 ohm resistors, one for AZ and one for EL, between A1 and A3
> you should have 6 volts or close to it, same between E1 and E3, A2 and
> E2 are the returns and the voltage varies depending on the position of
> the rotors.
>
>   So check for the voltage, if zero disconnect both az and el cables and
> see if it is now there, if so you have a short in your cables somewhere,
> if still missing then the 7806 has probably failed.
>
>   If you have the newer G5500DC then I have no idea as I do not have one
> and so far I have not seen a schematic of the inside of the new DC
> controller.
>
> 73
> Kevin WA7FWF
>
>
> On 5/31/2020 3:06 AM, David Worboys via AMSAT-BB wrote:
> > Good morning,
> >
> > Although I will be talking to Yaesu tomorrow, I wondered if anyone had
> experienced this (and possibly now has a reason/solution to the problem)
> >
> > I have a brand new G5500 and most of yesterday was spent putting up the
> mast, rotators and antennas etc.
> >
> > The control box worked perfectly for a while but then decided to not
> indicate where the antennas are pointing to AT ALL!
> >
> > The rotators are working perfectly but the needles are stuck at zero.
> >
> > The only action they have seen is in the set up and calibration process,
> there is not even a radio attached to the system at this point - I didn't
> get that far before the box stopped working.
> >
> > As I said, I will of course be getting this resolved as quickly as
> possible with Yaesu and the place I ordered it from but I would be
> interested if anyone had had the same thing happen.
> >
> > Many thanks
> >
> >
> > David
> > KG4ZLB
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> _______________________________________________
> Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
> expressed
> are solely those of the author, and do not reflect the official views of
> AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
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-- 
Chris E. Thompson
chrisethompson at gmail.com
g0kla at arrl.net