[Elecraft] [K3] short circuit at power terminals

2012-10-19 Thread Lewis Phelps
Yikes! My reliable K3-10 has developed a short circuit across the power input terminals. Well, to be exact, not quite a dead short. It measures 0.6 ohms across the PowerPole connectors. It most certainly does blow fuses on the input line. Any suggestions for trouble shooting? And also for

Re: [Elecraft] [K3] short circuit at power terminals

2012-10-19 Thread Dale Boresz
Hello Lewis, I experienced this same issue once, and the problem ended up being the Transil diode D28 on the main pc board, near the 12 vdc power input connection. It is a large diode, and I believe it's purpose in life is to protect against excessive input voltage. It should begin to draw

Re: [Elecraft] [K3] short circuit at power terminals

2012-10-19 Thread Lewis Phelps
...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Lewis Phelps Sent: Friday, October 19, 2012 1:50 AM To: Elecraft@mailman.qth.net List Subject: [Elecraft] [K3] short circuit at power terminals Yikes! My reliable K3-10 has developed a short circuit across the power

Re: [Elecraft] [K3] short circuit at power terminals

2012-10-19 Thread Fred Townsend
trouble shooting. 73 Fred, AE6QL -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Lewis Phelps Sent: Thursday, October 18, 2012 11:50 PM To: Elecraft@mailman.qth.net List Subject: [Elecraft] [K3] short circuit at power