[Elecraft] K2 VCO Alignment only 0.02V @ R30

Don Wilhelm w3fpr at embarqmail.com
Sun Feb 3 17:36:32 EST 2013


Jeremy,

I am sorry, I had the wrong IC,  RF board U5 pin 2 should be connected 
to Control Board U6 pin 24.  Yes, it also connects to Control Board U7 
pin 5 and Control Board U8 pin 11, as well as RF board U4 pin 5.

73,
Don W3FPR

On 2/3/2013 3:45 PM, JeremyJones wrote:
> Rechecked the resistance, and indeed there is 300k from U6 pin 24 to U7 pin2.
> Looking at the schematic in the manual, it shows U6 pin24 connected to U7
> pin5 and U8 pin11.  At this point I do have less than 1 ohm.
>
> The schematic shows U6 pin23 connected to U7 pin2 which is reading less than
> 1 ohm.
>
> The control board was removed when checking Q1, and it is showing 4.2k to
> ground.
>
>
>
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