[Elecraft] Foot Switch Doesn't Work

[kg6mzs]

Hi Mike,

Thanks for the reply.  K6MKF also suggested that.  The shorted RCA 
jumper placed in the PTT IN jack also does not key the K3, so it is 
looking like it is something under the hood of the K3.

Thanks again,

Eric

KG6MZS

On 7/28/20 10:40 AM, Mike Harris via Elecraft wrote:
> I use a donated Heil FS-3 foot switch plugged into PTT IN and it works 
> perfectly.
>
> Try plugging a short circuit RCA plug into the K3 and checking if it 
> keys or not. The only other RCA socket in that line is KEY OUT to the 
> linear!
>
> Regards,
>
> Mike VP8NO
>
> On 28/07/2020 13:11, kg6mzs wrote:
>> Hello All,
>>
>> I've connected a Heil foot switch to to rear panel PTT In RCA jack 
>> and it doesn't key my K3.
>>
>> I searched the archives here  and found that Don W3FPR had suggested 
>> testing the foot switch of another unfortunate, Dick K9OM, who 
>> suffered the same problem.  This thread went unresolved, AFAICT.
>>
>> I've tested the Heil and it checks out.
>>
>> Any ideas as to why my foot switch will not key the K3?
>>
>> TIA,
>>
>> Eric
>>
>> KG6MZS
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