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From: liz@poppyrecords.invalid.invalid (Liz Tuddenham)
Newsgroups: sci.electronics.repair
Subject: Re: Altec Lansing ATP3 Speaker system transformer failed.
Date: Mon, 29 Apr 2024 09:28:59 +0100
Organization: Poppy Records
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Bob F <bobnospam@gmail.com> wrote:

[...]
> No output. Ohmmeter resistance shows infinite on primary and secondary.
> 2 leads on primary, 2 on secondary, going to 4 diodes on the circuit board.

Does it look badly burnt or is there no physical sign of stress?

It would be very unlikely that both windings would go O/C simultaneously
unless it had failed catastrophically and that would be rather obvious
from the outside.

Simple question:  Did you measure the resistance between the two ends of
the same winding or are the terminals laid out in a confusing way, so
you measured resistance between two different windings?


-- 
~ Liz Tuddenham ~
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www.poppyrecords.co.uk