KPA1500 fault

[Steve Reichlyn]

Turned on #121 tonight. Keyed K3 with 15 Watts. Amp immediately went into hard fault mode showing ‘50 VOLTS: 4.5 volts’ recycled and relayed. Immediate hard fault showing ‘50 VOLTS: 2.5 volts’. Next recycle fault shows ‘50 VOLTS: 2.1 volts’

Sounds ominous. Anyone have any ideas?

73
Steve AA4V


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[Eric Swartz - WA6HHQ]

Hi Steve,

When plugging in the large 50V power cables between the power supply and rf deck, make sure they are pushed in firmly with -two- distinct insertion clicks. After feeling the first click, push them in further for the second click.

We are finding some customers mistakenly think they are fully inserted after just the first click, which can lead to intermittent 50 V to the amp.

If you still have problems after checking this, please contact [hidden email] so we can help you resolve it.

73,
Eric
elecraft.com
_..._

> On Jun 3, 2018, at 6:09 AM, Steve <[hidden email]> wrote:
>
> Turned on #121 tonight. Keyed K3 with 15 Watts. Amp immediately went into hard fault mode showing ‘50 VOLTS: 4.5 volts’ recycled and relayed. Immediate hard fault showing ‘50 VOLTS: 2.5 volts’. Next recycle fault shows ‘50 VOLTS: 2.1 volts’
>
> Sounds ominous. Anyone have any ideas?
>
> 73
> Steve AA4V
>
>
> Sent from my I-Phone
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]

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