[Elecraft] K2# 1068 stuck in transmit mode - SOLVED! KIO2 still a problem

[Bill Allen]

John,

Thanks for the suggestions.  I can now report back to the list what I =
have
found.  Gary Surrency and Don Wilhelm have been helping me on the side =
and
here is what the problem is.

LIGHTNIHG.   Yep, I took a hit.  I started pulling the various module =
boards
one at a time until I found that pulling the SSB board made the K2 drop =
out
of transmit.  Then, reasoning that the most likely component on the SSB
board to suffer lightning damage would be the PIC processor.  So, I =
pulled
the PIC and replaced it with a previous revision chip that I had left =
over
after the last time I upgraded it.  Viola!  The K2 then worked fine =
except
for the KIO2 is mute.  It will taken control commands from me, but does =
not
send polling data back out.  Could be because I have a mismatch of
processors now.  Any notions for this specific KIO2 problem from anyone =
in
the group would be quite welcome.

Many thanks to Gary and Don and everyone who gave me feedback, it was =
all
quite valuable.

NOTE TO THE GOUP!  NEVER throw away old revision processor chips when =
you
make upgrades to your K2.  Tuck them away safely in something antistatic =
and
save them for a rainy day.  You may have to depend on them one day!

Best 73s,
Bill Allen - WA5PB


-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of John
Sent: Thursday, April 20, 2006 10:27 PM
To: elecraft at mailman.qth.net
Subject: RE: [Elecraft] K2# 1068 stuck in transmit mode

Bill,

Do you think it could be the key input jack itself? I've had trouble =
with=20
the headphone jack on one of my K2's. I've had to replace it 3 times, =
not=20
fun. I think the key jack is about the same thing and maybe prone to the =

same type problem. Just a thought.

John,
k7up

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