Yahoo Groups archive

MOTM

Archive for motm.

Index last updated: 2026-03-30 01:13 UTC

Message

Re: [motm] motm-485 stopped working :-(

2007-01-20 by Andre Majorel

On 2007-01-18 19:44 -0800, Jonathan Snipes wrote:

> my motm-485 (gx filter) just up & stopped working the other day.
> It's one I built myself, so I'm not shocked, of course. I took it
> out and examined it - the only thing wrong with it I could find was
> that the 'freq' pot had been cranked a little too hard when
> tightening the nuts, and had come up from the PC board. I replaced
> it with another pot (i had some extras) but still nothing ...

Came up from PCB ? Wow. I'd look for hairline cracks in the
copper traces around the area where the stress was applied.
Visual inspection and maybe continuity tester (ohmmeter) across
the ends of each trace.

--
André Majorel <URL:http://www.teaser.fr/~amajorel/>
Do not use this account for regular correspondence.
See the URL above for contact information.

Attachments