[Elecraft] KX1 problems

[Don Wilhelm]

Doug,

Except for the voltages on Q4, the DC voltages look OK.  Check R9 and 
R26.  The voltage at both ends of R26 should be near 6 volts.
Did you put the jumper between J7 pins 1 and 3?
How do the toroid leads look?  Well stripped and tinned with a bit of 
tinned lead showing on the toroid side of the board?  Look particularly 
at T1's green winding.
R4 started out fully counterclockwise (if you followed the 
instructions), and there will be no RF output at that setting.  Do you 
get any RF when R4 is advanced clockwise?

73,
Don W3FPR

73,
Don W3FPR

Doug Person wrote:
> Just finished my KX1. Unfortunately, it won't produce any output on 
> transmit. Receive is excellent. Toroids are solid. Board was carefully 
> inspected with good magnifier. All solder joints are solid and clean.
>
> I get the following voltages in "tun" mode:
>
> Q6: B=0v C=12.67v E=0v
>
> Q5: C=12.67v B=1.07v E=.94v
>
> Q4: C=1.07v B=1.06v E=.32v
>
> Any helpful pointers on debugging this problem will be greatly appreciated.
>
> 73, Doug -- K0DXV
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