Dead K3 RX, no Power Out

[Martin]

'Crafters,

i have a 7 year old K3 #28xx causing me a headache. I built this (and
other K3s) myself and modified it quite often, so am fairly familiar
with it's innards.

The issue is a dead RX ( no signals on any band, just noise from spkr)
and no power out on any band ( display shows 0.0 Watts) after - say 30
minutes - of just running in rx . When i hit the case with my hand -
like a slap - rx comes back to life and power out works again. I suspect
something has come loose causing a slack joint. Something that is
involved in RX AND TX.
So where should i check?  Probably the synth boards?

Thanks.

--

Ohne CW ist es nur CB..

73, Martin DM4iM
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[Don Wilhelm]

Martin,

I would try giving each of the TMP cables a slight twist.
Secondly, I would remove and reseat the front panel board.

No guarantee that will correct it, but it is a good starting point.

73,
Don W3FPR

On 6/11/2016 7:35 AM, Martin wrote:

> 'Crafters,
>
> i have a 7 year old K3 #28xx causing me a headache. I built this (and
> other K3s) myself and modified it quite often, so am fairly familiar
> with it's innards.
>
> The issue is a dead RX ( no signals on any band, just noise from spkr)
> and no power out on any band ( display shows 0.0 Watts) after - say 30
> minutes - of just running in rx . When i hit the case with my hand -
> like a slap - rx comes back to life and power out works again. I
> suspect something has come loose causing a slack joint. Something that
> is involved in RX AND TX.
> So where should i check?  Probably the synth boards?

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