The RIT has been a persistent problem with the Orions and I believe after
fixing the problem here that it is the connectors that tie the boards in the
front panel together to form a sort of sandwich. Others have noted that the
pins in the two big ribbon cable connectors might have needed some minor
realignment, or that the connectors might not be completely 'punched down'
into the ribbon cable copper. Playing with those cable connectors did seem
to have some effect, but I think the bigger issue is oxidation on the
board-to-board connectors.
Ron N6IE
www.N6IE.com
----- Original Message -----
From: "K8JDC" <K8JDC@sbcglobal.net>
To: <tentec@contesting.com>
Sent: Sunday, January 23, 2011 6:19 AM
Subject: [TenTec] Orion Update
> Well, my Orion is still acting flaky. Having worked on it and thought
> about it, I think it's related to the widely-reported RIT issue. My RIT
> has never worked and I never used it until the last week. So, I pushed
> gently on the front panel to get it to work a few days ago and then my
> bigger problem with the receiver stopping started a day or two later.
> After I thought it was working okay from snugging the screws, I noticed
> I could induce it to freeze by pushing on the front panel over on the
> left side or lightly tapping on the plastic there. So, in general,
> flexing of the front panel and related boards is the issue so I started
> suspecting the connectors between the boards much like the RIT deal.
>
> I took the top board off last night and gave the connectors a treatment
> of Deoxit D100 (needle applicator) and put everything back together.
> Now, it's worse. But I think that may just mean that I'm hitting on the
> real issue now. I can get the receiver to work by gently flexing the
> boards which is probably related to the connectors between those
> boards. So, later today, I'll probably take the top board off again and
> look closer at those connectors.
>
> Dave
> K8JDC
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>
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