I wouldn't use denatured alcohol. There is no telling what it might
contain. Stick with pure isopropyl alcohol. Don't be surprrised if it
doesn't help the really stick dots. You will have to send the machine in
to the vendor to have those cleaned. I don't know what solvent they use,
but they take the display apart and put the parts in the solvent for a
day or two.
John
On Sat, Oct 30, 2010 at 07:56:06AM -0400, Lou Kolb wrote:
> Thanks for the info, John. And that leads me to my next question, is
> isopropal alcohol the same as denatured alcohol? I see I can get denatured
> from Amazon but haven't looked for isopropal yet. It's been years since I
> had to clean tape heads so I don't keep this stuff on hand anymore. Lou
> ----- Original Message -----
> From: "John J. Boyer" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Friday, October 29, 2010 9:13 PM
> Subject: Re: OT braille display
>
>
> >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
--
John J. Boyer; President, Chief Software Developer
Abilitiessoft, Inc.
http://www.abilitiessoft.com
Madison, Wisconsin USA
Developing software for people with disabilities
|
