Hello John,
Probably a very stupid answer, but are you sure de back-up batt. is still
OK?
If not, it will disturb the whole program set-up.
Jos on4kj
----- Original Message -----
From: "W0UN -- John Brosnahan" <shr@swtexas.net>
To: <yaesu@contesting.com>
Sent: Friday, March 12, 2004 7:16 PM
Subject: [Yaesu] FT-1000MP dies when warmed up
> While waiting for a copy of the Technical Supplement to
> arrive from Yaesu for the original FT-1000MP (BTW they
> just received a few from Japan--so they are back in stock
> apparently) I decided to fish for some answers here on
> the reflector.
>
> I have a stock MP (NOT Mark V or Field) with Inrad filters. It has
> been working for the past year--it was purchased used but worked
> flawlessly until now--but it has recently developed the problem of
> the receiver dying after an hour or so of receiver operation.
>
> If anyone has an experience with these issues I would appreciate
> hearing from you.
>
> Here are the symptoms---
>
> --It runs for an hour plus and then dies. But the death is not
instantaneous
> but rather it takes a few (couple of) seconds for it to fade
out.
>
> --In dual RX both channels die--since the phased locked loops
> are separate this would indicate that it is not a synthesizer--
> but rather a problem in an area common to both RX channels
>
> --When I hit the MOX button, putting it into TX it will return to RX OK
for
> a few seconds and then it fades out in another second or two
>
> --Initial indications are that it is on ALL bands--so it is not a band
pass
> filter problem in the front end.
>
> --The fadeout is in the RF since the S meter also stops
indicating--rather
> than in an audio stage.
>
> --No display flashes -- once again making me think it is not the
> synthesizers.
>
> --The failure appears to be the same whether the antenna is hooked
> up to either A or B position OR even hooked into the direct RX position.
>
> Maybe I just need to get on the air and do some high-speed QSK CW
> to exercise the antenna relay. But once it heats up it will only
recover
> for a second or two when it is switched into transmit and then back to
> receive, no matter how many times I try to exercise the relay.
>
> THANKS--John W0UN
>
>
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