TenTec
[Top] [All Lists]

Re: [TenTec] digital readout corsair 2

To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Subject: Re: [TenTec] digital readout corsair 2
From: Dale Johnson <pastordalej@gmail.com>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Sat, 13 Apr 2019 23:12:50 -0500
List-post: <mailto:tentec@contesting.com>
Thank you to all for the help and insight. I will start tracking things down 
ASAP, hopefully with in the next week or two.
> On Apr 12, 2019, at 11:49 AM, MadScientist <dukeshifi@comcast.net> wrote:
> 
> The manual is correct about the possibility for ESD harm to the display. 
> However, by following simple ESD practices, there is no risk.
> 
> At the very least, work on a conductive and grounded surface. 
> 
> Before you touch any part of the display, touch the radio chassis first, 
> EVERY TIME you will touch the display.
> 
> If possible, get an ESD wrist band and clip the wire from it to the radio 
> chassis.
> 
> Do not lay the display on highly insulating or highly conductive surfaces. I 
> use ESD bags as work surfaces. These are commonly available. 
> 
> Two very common failures in Ten Tec displays (among other boards) are 
> marginal soldering and oxidized/dirty board connects. Sometimes just 
> unplugging and plugging is not a sufficient action to clean them so a little 
> no-residue contact cleaner sprayed into the female connectors followed by 
> immediate replugging can help.
> 
> As for the soldering issues, a microscope is helpful in seeking out solder 
> joints that look questionable, removing solder from them and resoldering them 
> (using an ESD rated soldering tool).
> 
> While one might have thought that, since the thing h as worked this long 
> without issues, why would you look for bad solder joints. The reason is that 
> you may have flexed the display board whilst removing it and that would bring 
> out nay marginal soldering failures.
> 
> Gary
> 
> 
> W0DVN
> 
> 
>> On Apr 12, 2019, at 11:29 AM, Rich H <rhattaway@hotmail.com> wrote:
>> 
>> Dale,
>> 
>> I am no expert on the Corsair, but the readout looks very similar to mine in 
>> an Omni D.  I have had mine out on the table two times, working on PTO 
>> issues.. It's on top of the PTO and must come out.  I did not find it to be 
>> fragile, beyond normal handling care.  YMMV, but in my shop it'd not be a 
>> problem to look around in there at least.  If it will run with the case off, 
>> I think I'd leave it that way and probe around a bit with a small wood dowel 
>> when the malady occurs.  I'd also mess with the VFO plug while the unit is 
>> live and exhibiting issues...
>> 
>> Dick
>> W4PID
>> 
>> 
>> Date: Thu, 11 Apr 2019 21:26:15 -0500
>> From: Dale Johnson <pastordalej@gmail.com>
>> To: Discussion of Ten-Tec Equipment <TenTec@contesting.com>
>> Subject: [TenTec] digital readout corsair 2
>> 
>> My digital read out has started to do several things. It intermittently 
>> freezes on one frequency and won?t respond to the PTO or the band switch. I 
>> turn the radio off and then back on and the display is completely dark 
>> except for the decimal. I let it sit for a day, then it came back on after 
>> it warmed up for a few seconds and worked fine for 3 more days, now it?s 
>> done the same thing again.
>>       The manual says that I can damage the digital display with static 
>> electricity, so is it safe to take the case apart to look for dirty 
>> connections? Where should I look for the problems?  I have checked the VFO 
>> plug in the back and it looks ok.
>> Thank you so much! Dale, KB0SYH
>> 
>> 
>> _______________________________________________
>> TenTec mailing list
>> TenTec@contesting.com
>> http://lists.contesting.com/mailman/listinfo/tentec
> 
> _______________________________________________
> TenTec mailing list
> TenTec@contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec

_______________________________________________
TenTec mailing list
TenTec@contesting.com
http://lists.contesting.com/mailman/listinfo/tentec

<Prev in Thread] Current Thread [Next in Thread>