LATEST UPDATE:
The USPS is DENYING the claim for damage based on their
insurance.
They claim that they did not damage the FT990 and therefore
place the onus on the shipper.
Meanwhile I am out several hundred $$ and QRT.
Now we begin the appeal process. Sigh....
I will let everyone know if USPS and my seller make good on
what I paid for here.
> Many thanks Jim.
> I will open it up carefully and take alook...
>
> > Brian,
> >
> > It's not the switches. The FT990 is a computer-controlled rig, i.e. the
> > pushbuttons on the front panel are read by a microcontroller and the
> > controller then implements the requested actions. The kind of confused
> > symptoms you describe are likely the result of a problem with the front
> > panel, and may be as simple as an intermittent connection on the front
> > panel connectors. If I recall correctly, the front panel of the 990 has
> > its own micro which in turn talks to the main processor. The main
> > processor is on
a
> plug in board, and I think the front panel plugs into a "motherboard". If
> not, there will be a cable. I'd open it up and remove and re-seat all of the
> boards including the connections to the front panel and see if your problems
> go away. It doesn't take but one intermittent contact to cause a lot of
> confusing symptoms, so your problems may not be that tough to fix. On the
> other hand, if it's not as simple as an intermittent connection, it might be
> tough. Try reseating ever
> > ything first and see if that helps.
> >
> > I assume the radio basically "works", i.e. if you can get it into a useful
> > mode it receives and transmits? If so, based on the symptoms you describe
> > it seems the problem is most likely the front panel itself. The switches
> > are scanned by the front panel controller .... there is not a wire to each
> > switch, they're wired in a matrix and the front panel controller scans
> > continuously for a switch closure, then determines which switch it is by
> > reading determining the intersection of inputs and outputs on the
front
> panel micro.
> >
> > I'm at work and don't have access to the documentation but I think my
> > description is essentially correct. If i'm wrong, my apology. I'll dig
> > into it later.
> >
> > The 990 is a very good radio and worth fixing. This problem is repairable,
> > so don't despair. I'll help if I can.
> >
> > If you elect to have someone else work on it, I recommend Paul Hansen,
> > W6XA. He worked on mine years ago after it was seriously damaged by
> > lightning (the insurance company considered it totaled) and it's worked
> > problem free ever since. Paul is in Anderson S.C. but I think he still
> > does pickup and delivery to HRO in Atlanta. He's a good guy.
> >
> > 73,
> > Jim
> >
> >
> >
> > -------------- Original message ----------------------
> > From: "Bry Carling" <bcarling@cfl.rr.com>
> > > Hello all,
> > >
> > > I just bought an FT990 and am experiencing some problems...
> > >
> > > Most of the time, the MODE SWITCHES do not appear to work right,
> > > and some other controls too.
> > >
> > > I can select LSB, USB, FM or RTTY only. Sometimes only LSB.
> > > CW and AM and PKT do not work when pressed.
> > > Sometimes the RTTY mode will allow signals to be heard
> > > and the filter comes up as 2.4 kHz. If you press 2.0 kHz
> > > it stays there and will not go back to 2.4 kHz and all the signals
> > > disappear.
> > >
> > > Am I doing something silly here? Could the switches themselves be bad?
> > >
> > >
> > > The RF FSP switych lights up, but the other three next to it do not.
> > > KEYER, BK-IN and NB
> > >
> > > The DOWN button works but the UP one does not.
> > > The 3.5, 7, 18 and 21 MHz band switches do not work.
> > >
> > > The bands that DO work, all wake up in 2.4 kHz filter setting
> > > but if you change to 2.0 kHz you can then ONLY select 500 Hz
> > > or 2.0 kHz and all signals disappear.
> > >
> > > Sometimes there are slightly different combinations of problems.
> > >
> > > Also - the carrier offset seems to be messed up.
> > > USB and LSB are filtered wrongly. One is all highs the other
> > > is all lows.
> > >
> > > I suspect that is to do with the switches under the lid for
> > > "CAR POINT."
> > >
> > > I suspect the radio may have had a bump in shipping.
> > > It is cosmetically fine and the seller assured me it was
> > > working properly.
> > >
> > > Now I am having some doubts!
> > >
> > > Ideas from anyone with experience on this radio? I would
> > > really appreciate hearing from you...
> > >
> > > 73 - Brian Carling, AF4K
> > >
> > >
> > >
> > >
> >
> >
> >
> >
> > [Non-text portions of this message have been removed]
> >
> >
> >
> > http://www.foxtango.org
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
>
>
>
>
> http://www.foxtango.org
>
>
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