[time-nuts] Re: Both TruePosition boards does not work

[Alexandre Souza]

Danke, herr Ziggy...but unfortunately this is already done, and even before
the $proceed the trueposition boards shows some gps messages. But there is
just no activity whatsoever. Serial is correct at 9600 n 8 1, power supply
is correct, antenna is working and with good view of sky, jumoer on pins 4
and 5 of the 6 pin connector, but no activity on rs232 AND ttl serial port.

Unfortunately I don't know what to do. I am examining the boards with a
microscope now looking for shorts, debris, whiskers :D whatever...

Thanks!
Pu2sex, Alexandre

Enviado do meu Tele-Movel.
Desculpe a brevidade.

Em seg., 18 de nov. de 2024 11:59, Ziggy via time-nuts <
time-nuts at lists.febo.com> escreveu:

> If I remember correctly, you need to send them $PROCEED before they will
> start up. Check your serial connections. Default is 9600 baud. It’s
> unlikely they both just failed in storage.
>
> Von meinem iPhone gesendet
>
> > On Nov 17, 2024, at 02:36, Alexandre Souza via time-nuts <
> time-nuts at lists.febo.com> wrote:
> >
> > Subjectsl: a pair of TruePosition gpsdo boards, tested working 2y ago.
> > Revisions B and C
> > Had this boards from ebay around 2y ago. Tested both working in Lady
> > Heather. No problems at all.
> > Today I got them from storage, connected to a 13V power supply. No
> activity
> > on board beyond 10MHz present. No 1pps. No ttl serial. No RS232C serial.
> No
> > nothing.
> >
> > Suspected an internal power rail down, wasn't able to find anything
> > strange. I can find 12v, 5v, 3.3v.
> >
> > I think I am running rounds here. Anything I should be aware of and I am
> > missing?
> >
> > Thanks,
> > Alexandre Souza, PU2SEX
> >
> > Enviado do meu Tele-Movel.
> > Desculpe a brevidade.
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> > Desculpe a brevidade.
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