[Elecraft] KPA500 Dead

[Lyn Norstad]

Tom -

I had the same experience a few months back.  I talked with Elecraft Support, and they had me check a few things.  There was no obvious cause, except the power supply board was dead.

They asked me to send it in, which I did, and they replaced the board.  Fortunately I got it back a couple days before the COVID shutdown hit, and it has been fine since.

As a precautionary move, they changed the power transformer back to the default setting.  I had set it up one notch because our line voltage is low, and that was needed to get it "near" the optimal value.

I also have tuner (KAT500) issues, but will live with it, as I am reluctant to send anything anywhere at this time.

73
Lyn, W0LEN


-----Original Message-----
From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Tom Berry
Sent: Friday, June 05, 2020 11:05 AM
To: elecraft at mailman.qth.net
Subject: [Elecraft] KPA500 Dead

I was operating on FT8  20 meters for quite a long time with my KPA500 
running about 400 watts and heard a few pops (like something arching).  
Heard it a few more times then the amp went off.

Now it will not power on.  No lights, nothing.  I checked the fuse and 
it is OK.

Can you tell me where to start looking?


Thanks

Tom AAA4VV

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