Hi,
I see about 1.17A in receive and only 1.8A in TX TUNE mode with the the
PWR control set at 110W.
Martin, HS0ZED
On 10/04/2018 07:38, Al Lorona wrote:
Martin,
Does the K3 draw any current from the power supply when you go into
TUNE? If so, then maybe the power meter is bad.
If not, then there is something wrong in the DC power to the amplifier
stages.
Al W6LX
------------------------------------------------------------------------
*From:* Martin Sole <[email protected]>
*To:* [email protected]
*Sent:* Monday, April 9, 2018 5:36 PM
*Subject:* Re: [Elecraft] K3 Apparent PA failure ?
Hi,
Well I've been through all of the operational settings. CONFIG : TUN PWR
is set to NOR and I can vary the power with the power control but the
output meter display stays at 0.0 and the VSWR displays only - - . I had
a settings save from about a month ago but uploading that hasn't changed
anything.
Since this affects both the 100 watt PA and the LPA I'm guessing the 100
watt PA is probably good and that the failure must be earlier on.
My next test is to look at the XVTR output as I see that is taken off
before both amplifiers to see if there is anything there.
Martin, HS0ZED
>> Hi,
>>
>> My K3 died today, somehow. The radio works fine on receive and
>> appears to transmit just there is no power indication on my external
>> meter or on the front panel when pressing TUNE. There is ALC
>> indication but no power out indication.The only thing I did different
>> was to switch off the supply before the radio, something I normally
>> never do. Having noted others having issues with that I reloaded the
>> firmware. Still no output. Starting to think that somehow the PA is
>> fried or possibly the driver as there is nothing from the 10 watt PA
>> either. Tried turning the power down and putting the KPA3 into
>> bypass. Still no power output. Not sure what else to try before I
>> tear into it. Was going great, worked 3B7A on 3 bands today no problem.
>>
>> Suggestions appreciated.
>>
>> Thanks
>> Martin, HS0ZED
>>
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