[1000mp] Broken DSP Function

[Robert Watzlavick]

While messing around with a TCXO for my rig, I hit the dangling TCXO 
connector with some static and zapped the ref clock buffer transistor on 
the DSP board.  The symptom was no audio when EDSP was enabled.  I was 
able to replace it but it might be worth doing some probing around 
before replacing the board.

-Bob
K5RLW

On 02/21/2014 08:22 AM, Dan Z wrote:
> Our club recently acquired an MP that works fine except for the EDSP.  The volume drops drastically When the EDSP is engaged, even with both the noise reduction Contours and Filters in their OFF positions.  With audio gain cranked all the way up I can hear enough that it appears the various filters are working.  However, using any setting of the contours totally kills the audio nor do I notice no difference in any of the contour settings.
> I have checked all the menu settings and they exactly match two other MPs I have that work fine.
>
> I'm thinking it may be something to do with the transistor switches in the DSP circuit.
> Any advice?
>
> TIA
>
>
>   
> Dan Zeitlin - K2YWE
> South Shore ARC - K3AU
> Annapolis, Maryland
> http://danzee.org
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