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[TenTec] 580 Display Problem

To: tentec@contesting.com
Subject: [TenTec] 580 Display Problem
From: dhhdeh <dhhdeh@comcast.net>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Sun, 29 Mar 2020 14:18:18 -0400
List-post: <mailto:tentec@contesting.com>
Hi Dennis,

I suspect this  is very similar to the one in my Corsair II which has exhibited similar problems from time to time.

Read the the following below from the Ten Tec Wiki (https://tentecwiki.eqth.net/doku.php) for the likely fix which is very simple.  Corrosion on all TT connectors (both cable and board connectors) is a very big problem over time.

73 de N1LQ-Dave


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Several of you have asked what I did on my readout to fix it.

It was simple in this case.

I asked:

The readouts on this radio are intermittent, too. Sometimes they are just fine and sometimes some of the segments fade out. One time I "banged" the side of the rig and they came back on. Do you know if I take off the front panel (and all those 300 knobs) can I get to the LEDs and are they plug-in such that I can exercise the devices in and out of a socket? … I have the screws out right now but am loath to pull all those knobs and such.

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From Harry Freeman, NK9R:

No, you don't have to take off the knobs. Just unscrew the top of the aluminum enclosure. The led board is right under it. Unplug it and put a little contact cleaner in the connections and you should be good to go.

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I opened it up and found there was a cable of sorts with plugs than ran from the LED boards to a horizontal board. I pulled the plug, noting which way it came off, and cleaned the pins and the sockets on the cable. Plugging it back in, the readouts work perfectly now. It did not look like the LEDs themselves came out but I supected plug to pin contact from the start.

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Take care.

73, Jim

Jim Larsen, AL7FS
Anchorage, Alaska

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