[TenTec] Centurion 422 amp keying issues

[Jim Carragher]

Tom
I had the same problem when I went from my Omni VI Plus to my new at the
time, Omni VII. Would not unkey. Sent the Omni VII back to Ten Tec, Paul
Clinton advised me to add a jumper across D2 on the QSK board. That was
October 2014. Did as instructed and no problems since. I had to remove
attached drawings from previous e- mail as file was too big. Hope this
helps.  Jim K7IKN

On Fri, Aug 17, 2018 at 2:31 PM, Jim Carragher <k7ikn2 at gmail.com> wrote:

> Tom
> I had the same problem when I went from my Omni VI Plus to my new at the
> time, Omni VII. Would not unkey. Sent the Omni VII back to Ten Tec, Paul
> Clinton advised me to add a jumper across D2 on the QSK board. That was
> October 2014. Did as instructed and no problems since. Attached is Invoice
> and drawing sent to me by him.  Hope this fixes it for you.  Jim K7IKN
>
> On Fri, Aug 17, 2018 at 1:03 PM, Bob McGraw K4TAX <rmcgraw at blomand.net>
> wrote:
>
>> Centurion does as well.   Relay hanging up is most likely a component on
>> the QSK board.
>>
>> Bob, K4TAX
>>
>>
>> Sent from my iPhone
>>
>> > On Aug 17, 2018, at 3:02 PM, Jim Brown <k9yc at audiosystemsgroup.com>
>> wrote:
>> >
>> >> On 8/17/2018 12:44 PM, Barry N1EU wrote:
>> >> Actually, I think it used an open-frame relay.
>> >
>> > Could be -- I've never seen a Centurion. All the Ten Tec amps I've
>> owned (Herc I, Herc II, Titan 425s) use vacuum relays.
>> >
>> > 73, Jim K9YC
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>> >
>>
>>
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>
>