Digest for sci.electronics.repair@googlegroups.com - 9 updates in 5 topics

Look165 <look165@numericable.fr>: Dec 04 11:44AM +0100

CircuitWorks provide conductive ink pens.
 
From my own experience, try first on something else.
 
bitrex a écrit :
John-Del <ohger1s@gmail.com>: Dec 04 04:47AM -0800

On Tuesday, December 4, 2018 at 5:44:01 AM UTC-5, Look165 wrote:
> CircuitWorks provide conductive ink pens.
 
> From my own experience, try first on something else.
 
 
No way to get that fine a trace without meticulous back taping, which will be a major problem with adjacent traces damaged (tape will lift CW paint).
 
 
> bitrex a écrit :
> > Due to an unfortuante jab with the head of a screwdriver it looks like I
> > have at least one, possibly two broken traces on this GPU card....
 
 
I keep a length of a scrapped RCA audio patch cord that is made of the thinnest gauge wire I've ever seen. When I repair boards like that, I pre-tin a strand, put a tiny bit of liquid flux over the damaged circuit area, and lay it right down over the break. I use fine pitch jeweler's screwdriver to "guillotine" the wire cleanly off the board. Once all the traces are done, I clean the flux and examine under a microscope.
Tim Schwartz <tim@bristolnj.com>: Dec 03 03:23PM -0500

Hi there,
 
CTS (Chicago Telephone Supply) is a different company. You can find a
company history, in annoying reverse order, so you have to scroll from
the bottom up, here:
 
https://www.ctscorp.com/company/history/
 
Regards,
Tim
 
 
On 12/3/2018 8:12 AM, John-Del wrote:
Michael Black <mblack@pubnix.net>: Dec 03 02:34PM -0500

On Sun, 2 Dec 2018, The Real Bev wrote:
 
> before asking. The problem is crud between the screen and the frame.
> Carefully drag the corner of a piece of ordinary paper under the edge all the
> way around. Yeah, I was suspicious too, but it worked!
 
That's interesting, I wonder what other devices might suffer in the same
way?
 
I got a TomTom One GPS for ten dollars at a rummage sale, and the touch
aspect seemed flakey initially, but after charging and some use, all seems
fine. I got a PDA last year, and the touch screen (you needed a stylus)
seems unrepsonsive, I was wondering what might be involved, not that it
really matters, it was a few dollars and I have no real use for one.
 
Michael
The Real Bev <bashley101@gmail.com>: Dec 03 12:07PM -0800

On 12/03/2018 11:34 AM, Michael Black wrote:
> fine. I got a PDA last year, and the touch screen (you needed a stylus)
> seems unrepsonsive, I was wondering what might be involved, not that it
> really matters, it was a few dollars and I have no real use for one.
 
So haul it out and try it. Surely you didn't throw it away...
 
How do the edges know which spot on the screen was touched? Was the bit
of crud in ONE specific place that somehow allowed the whole thing to
work, like a ground connection or something? Is the whole thing like a
required ground connection and a bit of crud somehow breaks that
connection? The website guy used paper; what if I'd used a tiny bit of
toothpick sliver or wire or plastic?
 
I have an older Lenovo laptop with a touchscreen that I rarely use; it
must have a frame. If it ever goes wonky I'll try it.
 
--
Cheers, Bev
I'd rather not have neighbors. If I can see them, they're too close.
In fact, if I can see them through a rifle scope, they're too close.
-- Anonymous Coward
Mike Coon <gravity@mjcoon.plus.com>: Dec 03 07:35PM

In article <373715b3-d4e5-467b-ad63-78261068256b@googlegroups.com>,
tabbypurr@gmail.com says...
> ... & lots of toxic selenium fumes, so best not tested indoors.
 
And, IIRC, a horrible smell of cabbage!
 
Mike.
"BurfordTJustice" <burford/associate@uk.MI15>: Dec 04 10:22AM +0100

Post in violation of terms-of-service cancelled by Sir Cancelot <cancelbot@eternal-september.org>
From: "BurfordTJustice" <burford/associate@uk.MI15>
Subject: Re: How do USB players keep track of position.
Message-ID: <otf6c7$iko$1@dont-email.me>
Newsgroups: sci.electronics.repair,alt.home.repair,rec.autos.tech
"BurfordTJustice" <burford/associate@uk.MI15>: Dec 04 10:22AM +0100

Post in violation of terms-of-service cancelled by Sir Cancelot <cancelbot@eternal-september.org>
From: "BurfordTJustice" <burford/associate@uk.MI15>
Subject: Re: How do USB players keep track of position.
Message-ID: <otfv2r$65p$1@dont-email.me>
Newsgroups: sci.electronics.repair,alt.home.repair,rec.autos.tech
"BurfordTJustice" <burford/associate@uk.MI15>: Dec 04 10:42AM +0100

Post in violation of terms-of-service cancelled by Sir Cancelot <cancelbot@eternal-september.org>
From: "BurfordTJustice" <burford/associate@uk.MI15>
Subject: Re: Why won't this work?
Message-ID: <pad7e7$hhr$1@dont-email.me>
Newsgroups: sci.electronics.repair,alt.home.repair
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