[Elecraft] K2 troubleshooting

[David A. Belsley]

John:
   Don't use the pictures for this, use the schematic.  There you'll  
see that one end of C4 is grounded, as is the can of L1.

best wishes,

dave belsley, w1euy


On Jun 7, 2006, at 9:05 PM, John Wiener wrote:

> I SHOULD be embarrassed by my mistakes...but, I figure, I am  
> learning more electronics in the last few months than I ever did in  
> my early years.  So, I really don't mind sharing them with the  
> group.  Hope the group doesn't mind.
>
> Here's the latest news:
>
> Yes, as noted before I found errors relating to confusing 560  
> designation and 561 and 820 designation and 821.
> I found the "evil twins" tonight: C228 was a 561 (supposed to be  
> 560)  and C210 was a 821 (supposed to be 820)
>
> So C4 is now correct (821) and C12 is correct (561)
> I will get the right caps for C228 and 210 and start alignment over.
>
> Now, as I was reviewing solder joints, etc., I noted that one of  
> the solder pads for C4 was touching the outer can tab of L1.
> My question:
>
> Is this a solder bridge, or is there supposed to be a connection  
> between C4 pad and outer (ground) tab of L1?
> I looked on N0SS's PCB pix and I cannot tell if a connection exists  
> there or not.  (thanks, by the way, to Tom for the pix).
>
> John
> AB8WH
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-------------------------------------
david a. belsley
professor of economics