[1000mp] FT-1000MP problem (Maybe with bandpass filter relays?)

[John Tait]

Hi Doug..
            It may be the VERY common problem of a bad joint at the back 
of the antenna socket(s). Resolder the links from the SO239 centre pins 
to the small PCB behind them. You'll find it on the top back RHS when 
you remove the top cover. The sockets usually get pushed back, which 
breaks the soldered connection to the PCB. It's a good idea to replace 
those stiff link wires with multistrand cable, or else, with a longer 
single wire link, so as to make it a bit more flexible.
    Good luck and 73
                 John EI7BA   http://www.iol.ie/~bravo/



KB9GKC at aol.com wrote:
> Hello 1000mp users,
>
> Here's the symptoms and settings:
> on  160, 80 and 40 meters
> SWR meter, both external and internal SWR meter  occasionally jumps to 3 or 
> 4:1 on resonant antenna
> When this occurs I can  keep mike keyed and let the power output drop to zero 
> and then talk and SWR is  still shows high.   A Quick un key and re key of 
> transceiver and the  SWR is normal.  At first I thought it was a problem with 
> either the tuner  or amp or dipole, all possibilities for problems in these 
> areas have been  systematically eliminated.  And the symptom of Hi SWR is always 
> cured by  unkeying and rekeying the transceiver.
>
> My thoughts are that the  problem lies in the bandpass filter network, 
> possibly with a relay that is  utilized on the three bands.  I have not yet looked 
> at the schematic and  any input would be appreciated.
>
> 73 all,
> Douglas  KB9GKC
>
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