[Elecraft] KX3 S/N 6624 Inopretive "Frequency/Tech-mode" -button

[Pentti A J Pajunen]

Yaw!

Dont recall when this malfunction started. I once asked for possible 
causes and got a couple of good suggestions. The flat cable btwn Proc 
and RF board should be checked. Ohm meter checked and found this cable 
being intact. Gave slight spray to the base connectors, that also seem 
OK as checked with magnifying googles. No bent pins, no obvious 
oxidation. Bad button? Which point to check?

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73 & CU Penna, OH2G, OH2CG