K2 building problem

[Ed Findley]

Trying to put together K2 #5278 I am at the point for alignment and test
Part 1. Powers up fine and shows 7100.00 c and display shows correct voltage
and amperage. But when I test the optical encoder by turning the vfo knob it
moves from 7100.00 c to 7100.01 c and then upon further turning moves back
to 7100.00 c. Does the same thing no matter which way the knob is turned.
Rechecked components and solder joint without finding anything.  I may just
be too old for this solid state stuff.  I think the last thing I built was a
HW 101.  I did not try to go on to the calibration part as it may not be
worthwhile with the encoder not working correctly.

Appreciate any suggestions.

K2 #5278

Ed Findley  WB2KUI

 

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[Don Wilhelm-3]

Ed,

You are going to find an unsoldered connection somewhere.  Examine the
boards carefully.  One of the most likely is that you missed soldering a pin
on one of the connectors, but examine everything.

It is not your age - stuff like that happens to all of us at one time or
another.

73,
Don W3FPR

> -----Original Message-----
>
> Trying to put together K2 #5278 I am at the point for alignment and test
> Part 1. Powers up fine and shows 7100.00 c and display shows
> correct voltage
> and amperage. But when I test the optical encoder by turning the
> vfo knob it
> moves from 7100.00 c to 7100.01 c and then upon further turning moves back
> to 7100.00 c. Does the same thing no matter which way the knob is turned.
> Rechecked components and solder joint without finding anything.
> I may just
> be too old for this solid state stuff.  I think the last thing I
> built was a
> HW 101.  I did not try to go on to the calibration part as it may not be
> worthwhile with the encoder not working correctly.
>
> Appreciate any suggestions.
>
> K2 #5278
>
> Ed Findley  WB2KUI
>
>

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