I'd like to see how this is resolved. I note the silence about it after your post.

My early K3 (sub s/n 500) started doing this same thing intermittently several months ago. The problem occasionally got bad enough that the rig would cut back to low power mode and report the PA over temperature. The problem would manifest itself upon power up after the radio had been off overnight. Usually within and hour after power-up the PA temperature report would stabilize and all was well. I pulled the PA board off and did the gold pin replacement but this did not resolve the issue. A month or so later, the temperature report stabilized. I have not yet pulled the front panel to change out to gold pins in that area. As the radio has not exhibited this behavior for the past month, I'm holding off until I can tell that I've fixed it (or not) when I work on it. I love repairing intermittant issues (not!). Anyway Paul, your problem is not unique.

73,
Mike, AB9V

On 1/18/2014 3:41 PM, paulb wrote:
Hi  folks

K3 here owned for about 4 years.
Latest firmware.
Last couple of days at power up the PA Temp is unstable.
LCD flicks between 27 and 40 degs C.
TX and RX same reading.
Noticed the rear fans starting and stopping
Reloaded firmware no change.
Before lifting the hood anyone got a pointer what to
check ?


thanks

cheers

Paul b
zl1ajy





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