Jerry,

You might try my tested and very successful method of working on Elecraft gear.

1.  Open up the cabinet (top and bottom).
2.  Observe the components inside, looking at each one, contemplating issues,
     and possible problems.
3.  Place the cabinet back together.
4.  Ship off to Elecraft.

Works every time.  Of course, there are other techniques I have heard about 
involving
some variant of home surgery methods.

Good luck,

73, phil, K7PEH


> On Mar 27, 2015, at 8:18 AM, Jerry Knowlton <[email protected]> wrote:
> 
> Good morning,
> 
> 
> 
> It looks like my KPA500 has gone down for the count. Is there a schematic
> available for this amplifier/
> 
> 
> 
> Best regards,
> 
> 
> 
> Jerry, W1IE
> 
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