[Elecraft] KPA500 / 270V ERR

[Dr. William J. Schmidt]

I think it may actually be the other way around... The 60V relay does not
close if 270V is missing?

-----Original Message-----
From: elecraft-bounces at mailman.qth.net <elecraft-bounces at mailman.qth.net> On
Behalf Of Andy Durbin
Sent: Sunday, July 17, 2022 6:49 PM
To: elecraft at mailman.qth.net
Subject: [Elecraft] KPA500 / 270V ERR

HV and 270V are separate power supply rails but, if my read of the schematic
is correct, 270 V depends on 60 V being present.  60 V requires the
interlock switch to be closed.

Diagnosing this may require having the top off and the interlock defeated.
Everyone should evaluate their own competence and risk tolerance.

Andy, k3wyc

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