I have had many braille displays and have cleaned them lots of times.
Rubbing alcohol will make matters worse, because it contains oils and
stuff. The fluid usually advised is pure isopropyl alcohol. Also, if the
display is really dirty cleaning it yourself won't help. It must be sent
in to the vendor.
I have had a display in which one dot stayed up all the time. In this
case a new cell was needed. I sent the display to the vendor. I have no
idea where you might get new cells.
John
On Fri, Oct 29, 2010 at 06:29:40PM -0500, Howard Traxler wrote:
> Does anyone know the electronics inside these things? I have a powerbraille
> 80 that has several dots stickig up all the time. I know it's not any kind
> of dirty or miss-alinement. The staying up dots work up and down by
> pressing just as easily as the ones that are supposed to be up. I suspect a
> failing electronic component somewhere in there. Sure would like to not
> have to pay the $800 that fs wants to mess it up worse.
>
> The Other Howard, WA9RYF
> ----- Original Message -----
> From: "Lou Kolb" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Friday, October 29, 2010 5:45 PM
> Subject: Re: OT braille display
>
>
> > Pretty sure it's cleaning, Steve. Dots all come up just fine but won't
> > retract properly. Not all of them, just the left end which is touched
> > more
> > than the others. Thanks everyone for your answers. Lou
> > ----- Original Message -----
> > From: "Steve Dresser" <[log in to unmask]>
> > To: <[log in to unmask]>
> > Sent: Friday, October 29, 2010 9:55 AM
> > Subject: Re: OT braille display
> >
> >
> >> Lou,
> >>
> >> If cleaning is really the issue, you can probably use denatured alcohol
> >> to
> >> do the job. Unfortunately, however, if the display is older, you may
> >> also
> >> have weak cells, or pins that are out of alignment, which will probably
> >> require sending the unit in to be repaired.
> >>
> >> Steve
> >>
> >> ----- Original Message -----
> >> From: "Lou Kolb" <[log in to unmask]>
> >> To: <[log in to unmask]>
> >> Sent: Friday, October 29, 2010 07:49
> >> Subject: OT braille display
> >>
> >>
> >>> Please forgive the off-topic post which, while not dirrectly ham radio
> >>> related is at least technical in nature and I'm sure you folks will have
> >>> some suggestions. I have both a Braille-lite and a pac-mate which I
> >>> rely
> >>> on
> >>> heavily at work every day. The Displays in both units need cleaning
> >>> especially on the left-hand side which is touched most often. I'd like
> >>> to
> >>> avoid sending them in to FS both because of the cost and the time
> >>> involved.
> >>> Any ideas on how to clean them without causing harm? Lou WA3MIX
> >>>
--
John J. Boyer; President, Chief Software Developer
Abilitiessoft, Inc.
http://www.abilitiessoft.com
Madison, Wisconsin USA
Developing software for people with disabilities
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