[Elecraft] K3 transmit audio cuts out

[Don Wilhelm]

Keith,

The APP connectors do not "loosen up over time" if they are properly 
assembled.

I have repaired 3 KPA100s over the last week that have had APP 
connectors improperly assembled.  This is an ongoing problem.

If your APP connectors do not fit together and "latch" in place, it is 
likely that you have not assembled them properly.  Take a look at the 
diagram on page 37 of the XV transverter manual Download from 
http://www.elecraft.com/manual/XV%20Transverter%20Owner%27s%20Manual%20Rev%20F.pdf. 

Figure 29  is the best description of the proper locking of the APP 
blades into the housing.

If you do not have the blades locked into the housing correctly, you 
will not have adequate DC power connections and will be complaining 
about the APP connectors loosing the connection.  If you have problems 
of that nature, make certain you have properly assembled the APP connectors.

73,
Don W3FPR
On 7/28/2012 11:10 PM, Keith Heimbold wrote:
> Don,
>
> I am now starting to think that it is an issue with my power connectors that I am using.
>
> I bought some additional ferrites and put the balun design 1113u in line to take care of RFI but i know believe that the power connectors are a little intermittent at times. I don't always get a solid click when inserting into the back of the K3 or into the power supply line. I like the convenience of those type of connectors but they do seem to loosen up over time.
>
> Thanks again,
>
> Keith
> AG6AZ
>
> Sent from my iPhone please excuse typos
>
> On Jul 28, 2012, at 3:44 PM, "Don Wilhelm" <w3fpr at embarqmail.com> wrote:
>
>> Keith,
>>
>> You could also have a loose connection in your microphone cable. When operating SSB, if there is no audio, there will be no RF output.
>> So you can look at the PTT, the audio, the power supply, and just about every thing else in your station.  Cables are usually the weak link.
>>
>> 73,
>> Don W3FPR
>>
>> On 7/28/2012 5:34 PM, Keith Heimbold wrote:
>>> Gene,
>>>
>>> Great suggestion. It maybe the connector going into the rig or the connectors which I built.
>>>
>>> Thanks,
>>>
>>> Keith
>>> AG6AZ
>>>
>>>
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