[Elecraft] K3 ERR 12 V

[Roger D Johnson]

It's pretty easy to jumper around the pins.

73, Roger


On 9/6/2015 8:13 AM, Joe Subich, W4TV wrote:
>
> What is you serial number?
>
> Intermittent ERR 12V is one early warning sign of the "burned
> 12V pins" on the KPAIO3 and KPA3 boards.  If you have an early
> K3 that did not have the "gold pins" on P68B of the KPA3 and
> J68B of the KPAIO3, I would be making plans to get them changed.
>
> 73,
>
>    ... Joe, W4TV
>
>
> On 9/6/2015 7:12 AM, Kurt Wiksten wrote:
>> During the ongoing All Asia Contest, after a few hours of sleep, I started to 
>> call Cq on 20m using my Acom 1000+ K3 at 50 W.
>> After about 20 minutes I noticed ERR 12Volt and the power went down to 5 W so 
>> I switched off the K3 and power supply.
>> After some 15 minutes of thinking I restarted the power supply and the K3. I 
>> worked some stations and called CQ for abaut 15 minutes.
>> Then again I got the ERR 12V message and K3 switched to 5 W.
>> After more thinking and reading the Manuel, I decided to try again but this 
>> time monitor the supply voltage, current drain and PA temp.
>> I am using a regulated DC Power supply rated 13.8V and 30A.
>> During this 10 min I operated barefoot with K3, power at 100W.
>> Power supply voltage steady on 13.9V. Current drain on listning at 0.94A. 
>> Current drain on voice(SSB): 2 - 15A
>> PA-temp: 38-40 degreesC
>> As the power supply seems to do its job OK  I wonder if something is 
>> intermittently wrong with the K3 PA??
>> Any suggestions would be appreciated!!
>>
>> 73 de Kurt/SM6BGG
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