[Kenwood] Re: 940S intermittant problem

[n4dsp]

Doug,
I am not sure if this is relevant but I have the 930S and at times the 
display would go out. It would do this either at power up or after the rig 
had been on for hours. This was a known problem with the 930S. The problem 
was the digital board. At the time of manufacture there were cold solder 
joints. Yaesu advised its customers to resolder specific points on the 
board. This was not a final solution. In time the board started to become 
brittle due to the heat within the rig and the display would again disappear 
and one had to resolder those points.

Now there is a company called Piexx who made a digital board for the 930S 
which eliminated the disappearing display. This board had a chip or two 
also. It also gave computer control and more memories. I purchased it and 
never had another problem with the disappearing freq. display. You may want 
to contact them to see if this is available for the 940S. This may or may 
not be your problem but wanted to pass this info along so others may 
benefit.

73
john-n4dsp



> I'm wondering if any 940S owners have experienced this and can lead me in 
> the right direction as to what may be the problem
>
> The freq. display on my 940 goes blank, just dots at the bottom, and the 
> receiver goes dead.  When I move the dial, the frequency display comes 
> back momentarily, then goes blank again.  The receiver stays dead the 
> whole time. Also, transmit is dead.  PRessing the reset switch behind the 
> subdial, does not help.
>
> After a period of power off, it comes back completely normal.  Suspecting 
> "heat", I left it on for an extended period when it was "working" and it 
> kept working fine.
>
> So, it's completely intermittent at present, but tending to not work more 
> than work lately.
>
> I've had it to Kenwood in California  (twice)for a different issue not 
> that long ago.  Cost me an arm and both legs... certainly not sending it 
> back there again.
>
> Thanks for any suggestions,
>
> Doug AA1UI
>
>
> 
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