[Collins] HF-2050 Help

[BSugarberg]

Hello,

Please reply to Dave at <davemcallister at hotmail.com> not to me
----------------------
Dave McAllister wrote:
> Hello all,
>  
> I'm faced with a rather disappointing problem, and I figure 
> this is the best place to go for help...
>  
> I just purchased two Rockwell Collins HF-2050 receivers on an online 
> auction (not the e-place).  Only one has arrived so far, and it is DOA.  
> It was damaged slightly during shipping - the RF gain/noise blanker 
> knobs are bent, and the noise blanker pot shaft has broken off 
> completely.  I don't think this is too serious an issue, as it shouldn't 
> take me very long to fix, assuming I can get the part.  However, the 
> radio is almost dead.  When powered on, the fault light comes on, a buzz 
> comes from the speaker, but nothing else.  None of the displays show any 
> life.  I've tried pressing various key combinations, and nothing seems 
> to do anything at all (except the volume control does affect the buzzing 
> sound, of course).
>  
> Has anyone ever run into anything like this?  Does anyone have any 
> suggestions as to where to start, or have access to a copy of the 
> manual/service manual?  I would of course be more than happy to pay for 
> reproduction/shipping costs if someone would be willing to send it along.
>  
> I have a hunch this is a power supply problem, and I'm guessing with the 
> +5v line, but I'd rather not go poking around in there without a 
> schematic or at least some basic troubleshooting ideas.
>  
> Any help anyone can give would be most appreciated!
>  
> 73s
>  
> Dave
> VE7HUN
> Squamish, BC, Canada