[Elecraft] My K2 is finished up to testing stage but no Transmit - receives fine all bands ideas?

[Geoffrey Mackenzie-Kennedy]

Cliff,

In Tx mode, is the "8T" voltage at the junction of RFC13, C55 and Q20's gate 
8 volts plus - minus a tad?

73,
Geoff
LX2AO


On January 03, 2013 at 8:17 PM, Clifford Hynds wrote:


> Well I finished the K2 only to find no TX preliminary troubleshooting 
> seems
> to suggest the T/R switch D6 and D7 are not getting the control signal 
> from
> the control board, Also U9 shows higher voltages ,
>
> Is there anything common that may be wrong, All bands peak fine on 
> receive.
>
> thanks for any ideas. I followed the troubleshooting in the manual and
> there is no RF right from the TX mixer buffer stages which suggests it is
> not being switched into TX mode.
>
> thanks
> 73
> Cliff VK2CCJ