[Coco] CoCo 2 keyboard ribbon HELP!!??
chadbh74 at hotmail.com
Fri Aug 5 00:03:47 EDT 2011
Actually, the "Circuit Writer" pen worked like a charm!! Some of the
'graphite'? lines were pretty messed up, even for a inch or so in length, I
just 'drawed' in the new conductor, heated it with a hair dryer on low for
about 10 minutes to cure it, then reseated and voila!! Multimeter showed
excellent continuity after the repair for each path but the heat curing was
definitely necessary. At first I tried just applying the compound and
letting it sit for a few hours..Went back to plug it in, didn't work at all
and noticed I had smeared the compound all over the ribbon. Heat curing the
compound hardens it. Also, it didn't seem to conduct worth a crap until
after a good heat curing.
From: coco-bounces at maltedmedia.com [mailto:coco-bounces at maltedmedia.com] On
Behalf Of George Ramsower
Sent: Wednesday, August 03, 2011 11:14 AM
To: CoCoList for Color Computer Enthusiasts
Subject: Re: [Coco] CoCo 2 keyboard ribbon HELP!!??
In the past, I have simply used scizzors to cut off the affected area. Don't
cut more than necessary.
>> -----Original Message-----
>> From: coco-bounces at maltedmedia.com [mailto:coco-
>> bounces at maltedmedia.com] On Behalf Of Chad H
>> Sent: Sunday, July 31, 2011 9:07 PM
>> To: 'CoCoList for Color Computer Enthusiasts'
>> Subject: [Coco] CoCo 2 keyboard ribbon HELP!!??
>> Ok not sure what happened, but I had taken the cover off my CoCo 2 to
>> it out and take a photo..not like this is the first time I've ever taken
>> keyboard loose either.
>> But upon re-assembly, only about half the keys work!! Ugh. Looking at
>> ribbon cable I didn't see any tears or obvious damage, neither to the
>> motherboard connector.
>> I took a multimeter just to see if I could measure continuity on the
>> side strips and I could from where it exits the keyboard up to about
>> the re-inforced plastic end is.
>> Right where the re-enforced part starts, it has kind of a 'fold' or
>> crease in it
>> and continuity starts breaking down. How do I restore this!?? I've seen
>> some liquid "trace repair" stuff at Radio Shack before, would this be
>> what I
>> need? This is aggravating. Any help would be appreciated.
>> Here is what I was thinking of to repair this.. any thoughts?
>> - Chad
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