Clark,
If you have already plugged an RS-232 cable into the KIO2 make sure
it was the modified Elecraft cable and not a standard cable that may have
been laying around the shack. Doing this will damage the KIO2 but I don't
know if it will cause it to overheat.
John [K7SVV]
----- Original Message -----
From: "Clark Macaulay" <
[hidden email]>
To: <
[hidden email]>
Sent: Tuesday, March 25, 2008 9:47 AM
Subject: [Elecraft] K2 KIO2 Hi Current Draw
Have looked for my problem by searching the archives and haven't found any
answers. The KIO2 is the last option I'm installing in my K2 bought at
Dayton LAST year (I like to stretch out the building process). Last night,
in the initial checkout, when I touched the KIO2 board to hold it for
measuring voltage at pin 8 of U1, it was hot to the touch. I quickly
checked current draw test and it failed.
All components are in their right place and I've checked for solder
bridges/loose wires and found none. Is it possible that U1 has failed and
has an internal short? I've stared at the circuit and can't see what else
could be the problem.
Any ideas out there?
73 de Clark ke4rq
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