[Elecraft] K1 Transmitter problem

[Don Wilhelm]

Denny,

Tell us more - what band, and what
rf voltage are you reading at the Transmit mixer output (pin 4)  How 
about th DC voltages?

73.
Don W3FPR

On 2/29/2012 10:04 PM, Dennis Rayfield wrote:
> I've build an RF Probe, and worked through the transmitter signal tracing section.  All of the voltages are within range until I get to the band-pass filter.  I'm just reading .07 volts rather than the 0.5-1.0 that it should read.  I have the 4 band module (40, 30, 20, 15) and the relays click when I change the bands.
>
> Thanks for any help.
>
> 73,
>
> Denny - KI3F
>
>
>
> On Feb 28, 2012, at 10:12 PM, Don Wilhelm<w3fpr at embarqmail.com>  wrote:
>
>> Dennis,
>>
>> It sounds like you need to turn the manual to the Transmit Signal Tracing section in the back of the manual.
>> Once you isolate the failure to a specific stage, we can help you isolate to the component level.
>> Right now, all we can say is that there is a problem somewhere in the transmit path.
>> You might want to check for soldering problems, unsoldered components or those where the solder did not flow out adequately onto both the component lead and the thru-plated hole.  Re-flow the soldering with a hot soldering iron - 750 degF if you used leaded solder, 800 degF if you used unleaded solder.
>>
>> 73,
>> Don W3FPR
>>
>> On 2/28/2012 9:58 PM, Dennis Rayfield wrote:
>>> I'm building a K1 and have everything finished and am at the stage for transmitter alignment and test.  I use the out menu to set the output to 3 watts, but when I put it into tune mode it immediately shows P0.1 on the display and there is no power out.  When I take it out of tune and go back to the out menu, that still shows 3 watts.
>>>
>>> Any suggestions where I should start with this?
>>>
>>> Thanks for any suggestions.
>>>
>>>
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