[Elecraft] KAT2 Relay Problem

[W3FPR - Don Wilhelm]

Do any of the relays operate (click), or is the problem only with the ones
on the L-C board?

If none of them operate, check that the MCU is properly seated in its socket
with no pins either sticking out to the side of the socket or bent under
(you should remove the MCU to check for bent under pins).

Check the soldering carefully - especially the MCU socket and the pins of P5
and J5.  Pin 1 of P5 and J5 are the relay common connection, and if a solder
connection is missed there, none of the relays on the L-C board will
operate.

73,
Don W3FPR

> -----Original Message-----

>
> I am trying to install my newly built KAT2 into my newly built K2 ...
> but have hit a wall.  When bringing up the ATU ... L0,L1, L2, ... menu
> functions, I am supposed to hear relays click ... but I do not (and my
> hearing ain't bad!).  I have checked all of the voltages in the
> troubleshooting section and they are all within spec.  Any suggestions
> would be much appreciated!
>
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