[TenTec] Corsair II Display Segments

[Adrian Rees (MW1LCR)]

Hi all
Problem fixed. As I thought poor electrical contact on the inter-board 
connections,. which was expected due to the Transceivers age me moving 
it 300 miles, and it not having been moved for a while.

I also changed the bulb.

I must say that when I compare it to my 756ProII and my 751A the Corsair 
seems a much better performer.

I am impressed !

Cheers all

Adrian MW1LCR / GW9X

On 10/03/2013 16:41, GARY HUBER wrote:
> Although I had my CORSAIR-II display rebuilt at the electronic shop at 
> work in the late nineties (I caused the problem to begin with) I've 
> found the display periodically needs to have ALL connections from the 
> display and frequency counter removed and reseated one at a time after 
> wiping each connector pin with a Q-tip dampened with Cramolin or 
> DeoxIT Gold.  If the clean-up does NOT work, then the likely culprits 
> are the electrolytics and possibly the transistors of the display 
> driver. The best thing to do is just replace them all with new high 
> quality parts. There's nothing special that cannot be replaced by a 
> local tech with a steady hand, good technique, and good eyes.
>
> I find my Corsair-II display seems to work better when used frequently 
> - every day. There was a time when I turned it on just a couple times 
> a year (Field Day) and had to clean the display contacts before the 
> operation. Now I use it daily for digital operating and its like every 
> five years for cleaning the connectors.  YMMV.
>
>
> 73 ES DX,
> Gary -- AB9M
>
> -----Original Message----- From: Stan Barr
> Sent: Sunday, March 10, 2013 3:03 AM
> To: mw1lcr at elsasystems.co.uk ; Discussion of Ten-Tec Equipment
> Subject: Re: [TenTec] Corsair II Display Segments
>
> On 10/03/13 02:16, Adrian Rees (MW1LCR) wrote:
>> Hi all
>> I have just acquired a Corsair II, and am very impressed with it so,
>> far. However, in two of the 7 segment displays, the LED's are not
>> lighting. If you think about the digits 2 and 3, its the bottom segment
>> in each of them, and in the Tens and Units of MHz.
>>
>> I am guessing the problem will be either a dodgy connection, or similar
>> dry joint type of affair. The previous owner has replaced a number of
>> electrolytic capacitors in the display, FWIW.
>>
>> Apart from the dodgy connection / dry joint is there anything else I
>> should consider ?
>
> Mine suffers from this about every 12 months or so.  A poor contact
> on the display connector is the culprit (in my case anyway) some
> contact cleaner cures it for a while.
>
>