[1000mp] 1000mp repair

[Garry Shapiro]

This sounds very much like a well-reported problem. I was one of those 
reporting it, after it appeared during a DXpedition to 3B9 in 1999, of 
which I was a team member. In my case, the dropout seemed deeper than 2 
or 3 S units.  I sent my MP to Yaesu on warranty, with a written, 
detailed description how to induce the condition. The technician said he 
could not do so, but replaced a bunch of parts and the problem went away 
for several years before returning. The source is almost certainly a DIP 
relay in the front end. In my case, a brief excursion into transmit mode 
always restored RX signal. Yaesu, to my knowledge, never acknowledged 
the problem, although it has been discussed on this list numerous times.

I suggest you contact Byron, WA4GEG at his qrz.com address. Byron is 
extremely competent and professional and I recommend him highly. That 
problem was one of several that Byron addressed for me; there are more 
than a half-dozen of the same relay in the front end, and he replaced 
all of them.

73

Garry, NI6T

W70m at aol.com wrote:
> In a previous posting I remember a thread relative to  repairmen.  Could 
> not locate the thread in the archives.  Also  recall Yaesu shop turn around 
> was long.....long.
>  
> I have a semi-intermittent receive problem where the signal  will drop 2 to 
> 3 S-units and return to normal later.  It is getting more  frequent.
>  
> I would like a recommendation to a service tech who may be able to  find 
> and fix this high nuisance fault.
>  
> 73
>  
> Rod
> W7OM
>  
>
>
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