[Elecraft] K2 Build #7552

[Matt VK2RQ]

Te kit should fit together without needing to use longer screws, etc.. If it doesn't, then it indicates you may have done something wrong.

Are the PCB headers sitting properly flush wi the board, or are they sticking up a bit, possibly causing misalignment? Are you sure you used the right size standoffs? If you used ones that are too short, then this could put stress on the board when you tighten the screws.

If all the connectors and securing hardware is correctly installed, then erratic behaviour could be an indication of further dry joints. It is worth to inspect all the joints with a magnifying glass and a strong light, although poor joints are not always obvious to the eye.

73,
Matt VK2RQ

> On 29 Sep 2014, at 12:14 pm, Kevin Schache <hillslaird at internode.on.net> wrote:
> 
> 
> Many thanks to Don and others who responded.
> The problem has been fixed, I found a suspect dry joint on the PTT/ATT switch.
> I also checked the new encoder which appeared ok but I did insert a very thin piece of insulation between the new encoder and the control board to make sure.
> 
> All tests now appear ok UNTIL I re-insert and tighten the two holding screws in the Control Board. When these are tightened, the control board is pulled about 1/8th inch toward front panel, probably stressing both boards, causing the display to be erratic (ELICRAFT instead of ELECRAFT  for example), and erratic other test results. Stressing the boards may be causing movement in sockets where they are used.
> 
> Does it matter if I leave those two screws out?
> Another option would be to put in longer screws and not tighten them so much, or perhaps a better suggestion maybe to increase the spacer length marginally, so that there is no stressing.
> 
> 73,
> Kev     VK5KS
> 
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