Dear Doug,

there Is a circuit board. And I did all the test you wrote. I flexed and 
bent the board up with high force. I shacked It and I tried to jog the 
relays. Nothing. And I resoldered most of the connections.

73 Holger, DL9HDA.

> Holger,
>
> I have no knowledge of that tuner.  Is it built on a circuit board?
>
> I have seen problems similar to what you describe.  There were broken 
> traces on the circuit board and the traces re-connected when the board 
> was flexed or bent by turning it upside down.  One way to test this 
> theory would be to intentionally flex the board while it is upright to 
> see if the problem goes away.
>
> Of course, if there is no circuit board then none of what I said matters!
>
> 73,
> -Doug, W7KF

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