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From: Christophe Niclaes on 19 Sep 2006 06:46
Does anyone have information about repairing a Tektronix TDS544A
oscilloscope (schematics, common failures, ...) ?


From: Andreas Tekman on 21 Sep 2006 08:12

Christophe Niclaes schrieb:

> Does anyone have information about repairing a Tektronix TDS544A
> oscilloscope (schematics, common failures, ...) ?

Schematics are not possible to get for most of us. See a few older
postings covering this here in s.e.

Faults I had to repair myself in a some TDS5xx: power supply (dead
SMPS), and a lot of failed caps on the boards.


hth,
Andreas

From: Jim Yanik on 21 Sep 2006 09:50
"Andreas Tekman" <and7(a)bigfoot.com> wrote in
news:1158840739.774592.116420(a)m73g2000cwd.googlegroups.com:

>
> Christophe Niclaes schrieb:
>
>> Does anyone have information about repairing a Tektronix TDS544A
>> oscilloscope (schematics, common failures, ...) ?
>
> Schematics are not possible to get for most of us. See a few older
> postings covering this here in s.e.
>
> Faults I had to repair myself in a some TDS5xx: power supply (dead
> SMPS), and a lot of failed caps on the boards.
>
>
> hth,
> Andreas
>
>

It is possible that the TDS544A was sold to the US military,and if that is
the case,they contract to have component-level schematics included in their
"service" manuals.That happened for a TDS3xx series scope model.

How to determine this or get the gov't part number for the manual,I don't
know.
I believe the USAF PMEL cal labs,if they do still exist,would have the
data.If you could hunt down the phone number for a PMEL lab,then they might
help.

--
Jim Yanik
jyanik
at
kua.net
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