[Elecraft] Help Please KIO2 L4 Burnt Out

[Don Wilhelm]

Mike,

As Guy suggests, check the ground return between your K2 and the power 
supply.  Also check the ground path between the computer and the K2.  
Make sure all ground paths are intact,

73,
Don W3FPR

On 5/15/2012 8:03 AM, VK1OO wrote:
> Hi Guy,
>
> Thought I would let you (and the reflector lurkers)  know the problem is
> solved, but I'm not sure how.
> Not a connector issue - I did one of the mods a while back to prevent that.
> I did check each of the power leads to the K2, KPA100 etc, but found no
> faults.  Subsequently measured the current through the L4 vias as as
> 0.4mA. So perhaps checking each cable scared the fault away.  I inserted
> a new L4 and monitored the current for a few days with no observed
> issues.  Put the trusty K2 back together and no problems since. So,
> what's the best way to prevent a recurrence of this problem?
>
> Mike
> VK1OO
>
>