[Elecraft] K2 - hang up problem

[N2TK]

Hi Gary,
Comments below.
Also, per W3FPR's suggestions I will reseat the U6 and check 8R and 8T.

Tnx,

N2TK, Tony 

-----Original Message-----
From: Gary Hvizdak [mailto:garyhvizdak at cfl.rr.com] 
Sent: Saturday, February 02, 2008 2:15 AM
To: tony.kaz at verizon.net
Cc: elecraft at mailman.qth.net
Subject: RE: [Elecraft] K2 - hang up problem

On Fri 1 Feb 2008 at 22:24:43 EST Tony Kazmakites (N2TK) wrote ...

Supply voltage is 13.0V as it has  been since I put together the K2. At 1W
out the voltage is at 13.0. At 100W out the voltage is 12.8V. The rig hangs
up at all power levels.

Serial #3481. It has been working fine for over 4 years.

--

Tony,

    More questions ...

1) Aside from the KPA100 and KSB2, what other options do you have?  Is your
KPA100 remoted?
(I also have the K160RX, KNB2,KDSP2. The KPA100 is built in)

2) Does this behavior also occur in CW mode or just SSB?
(Just SSB. CW is fine. I don't need a mike to cause the problem. If I key it
while in the SSB mode it happens)

3) Have you discovered any additional symptoms or any other ways to clear
the problem, beyond what you originally mentioned?
(No additional symptoms that I can find)

4) Very briefly describe your antenna system including tuners.  Has anything
about your antenna system changed recently?  (Given your problem description
this probably doesn't have anything to do with it.)
(No tuners. No antenna changes. This problem happens while on any band, any
antenna including a dummy load and any power level from the lowest to 100W)

5) Do you have a cat?  (They have been known to pee on equipment and to chew
on cables.)
(Nope, no animals)

73,
Gary  KI4GGX