[time-nuts] New member, new old 4040A with PSU failure
Gregory Beat
w9gb at icloud.com
Tue Sep 29 16:29:59 UTC 2020
Yes, it looks like the Radial electrolytic capacitor (1000 uF, 15V), next to transformer,
also received more heat. Clean board area with isopropyl alcohol.
I would highly suggest you look at the Panasonic EEU FK series (Digi-Key stocks), or other equivalent Panasonic 105° series
https://industrial.panasonic.com/cdbs/www-data/pdf/RDF0000/ABA0000C1015.pdf
I used the EEU-FK series for a 12 year old ESE Master Clock repair this summer (bulging caps in DC filtering section), that used inferior 85° electrolytics imported from East Asia (California shell company).
greg, w9gb
==
Date: Mon, 28 Sep 2020 15:37:43 -0400
From: Patrick Tanner <tannerpa at gmail.com>
To: time-nuts at lists.febo.com
Subject: Re: [time-nuts] New member, new old 4040A with PSU failure
Have made some progress.
Looks like bad caps. Capacitor "CA" is especially naughty.
https://photos.app.goo.gl/Ye91Fv4Nmuj4xb7n8
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