Thanks to everyone for the assistance! Mark N1UK has one of these and
in fact his flashed over at the very same point this one did, where
the HV from the transformer feeds the rectifier stack and the ground
trace on the rectifier board.
I think it would be prudent to replace the caps and some of the other
components on the board since it's out on the bench. But I'll leave
that decision to the amp owner.
73
Ken K4ZW
On Tue, Mar 24, 2020 at 5:33 PM Ken Claerbout <kenk4zw@gmail.com> wrote:
I have a Titan "Golden Series" amp and power supply here that I was
asked to test. It fired up fine the first time. Later I turned it
on, and a bang came from the power supply. The RF deck is fine. It
works with other supplies. The transformer appears to be OK too, at
least there is no DC short and none of the fuses blew.
This power supply is different from all the others I have worked on in
that it has the rectifier and filter caps on one board. Along with
20A line fuses on the chassis, there is a fuse on the 28 volt supply
as well as the soft start.
Does anyone have a schematic for this style power supply? I'm sure I
can figure it out eventually, just hoping I might save some time if
the schematic is available.
73
Ken K4ZW
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