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Re: [TenTec] Corsair - blank LED segments

To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Subject: Re: [TenTec] Corsair - blank LED segments
From: Steve Hunt <steve@karinya.net>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Wed, 06 Apr 2011 22:25:10 +0100
List-post: <tentec@contesting.com">mailto:tentec@contesting.com>
Barry,

When you say "all four" digits, I presume you mean the 100kHz, 10kHz, 
1kHz and 100Hz digit positions? They are driven by a multiplex 
arrangement where the same segment in all digit positions is fed by the 
same signal line. I would look for poor contacts as the most likely problem.

The 10MHz and 1MHz positions are also multiplexed, but separately from 
the other positions. I presume not all 6 positions are showing the same 
segment error? If they are, it's a very odd fault!

73,
Steve G3TXQ

On 06/04/2011 21:00, Barry N1EU wrote:
> I've never mucked around with the LED freq display before but the
> lower left vertical segment is out on ALL four digits of a Corsair LED
> frequency display.   In other words, "6" looks like "5" and "8" looks
> like "9".  Do they share something in common that would point to the
> source of the trouble?  Obvious things to check?
>
> Thanks&  73,
> Barry N1EU
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