Hey guys...

Screwed up and spilled a soft drink on my laptop keyboard (toshiba
satellite). The keyboard was working, but sticky, so I decided to remove the
keyboard and rinse it in distilled water and let it thoroughly dry in the
hot sun.

Long story short, some of the keys are no longer working... Looks like I'm
going to have to order a new/replacement keyboard. Any thoughts on what
direction I might take on this.

Oh, by the way, when I boot up the system, the system gives an alert,
doesn't go through the CD/HDrive process. When I select the HD from the boot
process the system boots up... I can deal with this though, as I don't boot
the laptop that often..

Any thoughts on the keyboard issue would be useful.

Thanks





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bruce wrote:
<snip>
> Any thoughts on the keyboard issue would be useful.

unless you are adventitiously, order new keyboard from toshiba.

a lot keyboards use a carbonized rubber membrane to contact a gold plated
circuit board.

problem is sugar in soft drinks. cleaning circuit board can be done with
alcohol, see thread;

From: Nigel Henry <cave.dnb2m97pp@aliceadsl.fr>
Subject: OT: Cleaning video head on my Betamax VCR
Date: 08/09/2008 07:59 PM

use warm water, *no solvent*, to clean membrane, blot, do not wipe.

toshiba may sell just membrane if it gets screwed up.

much luck.


- --
tc,hago.

g
.


in a free world without fences, who needs gates.


learn linux:
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g wrote:

correct as below::

> bruce wrote:
> <snip>
>> Any thoughts on the keyboard issue would be useful.
>
> unless you are adventitiously, order new keyboard from toshiba.

'adventitiously' should have read 'adventurous'.

> a lot keyboards use a carbonized rubber membrane to contact a gold plated
> circuit board.
>
> problem is sugar in soft drinks. cleaning circuit board

and keys

> can be done with alcohol, see thread;
>
> From: Nigel Henry <cave.dnb2m97pp@aliceadsl.fr>
> Subject: OT: Cleaning video head on my Betamax VCR
> Date: 08/09/2008 07:59 PM
>
> use warm water, *no solvent*, to clean membrane, blot, do not wipe.
>
> toshiba may sell just membrane if it gets screwed up.
>
> much luck.

- --
tc,hago.

g
.


in a free world without fences, who needs gates.


learn linux:
'Rute User's Tutorial and Exposition' http://rute.2038bug.com/index.html.gz
'The Linux Documentation Project' http://www.tldp.org/

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bruce wrote:

Hey guys...

Screwed up and spilled a soft drink on my laptop keyboard (toshiba
satellite). The keyboard was working, but sticky, so I decided to remove the
keyboard and rinse it in distilled water and let it thoroughly dry in the
hot sun.

Long story short, some of the keys are no longer working... Looks like I'm
going to have to order a new/replacement keyboard. Any thoughts on what
direction I might take on this.

Oh, by the way, when I boot up the system, the system gives an alert,
doesn't go through the CD/HDrive process. When I select the HD from the boot
process the system boots up... I can deal with this though, as I don't boot
the laptop that often..

Any thoughts on the keyboard issue would be useful.

Thanks



Cleaning the keyboard is unlikely to be much help at this point.
Keyboards are cheap anyway. I would be more concerned by how much soda
hit the motherboard and you can be sure that some did, I would refrain
from turning it on until I took it apart and very carefully located and
cleaned all the soft drink out, just look for the sticky parts, it may
well be that nothing is actually wrong with your keyboard but that what
your are seeing is board failure, the laptops days likely are numbered.
It sounds like you don't want to hear it but that is the reality of the
situation. OTOH i was using a laptop that had beer spilled on it for
awhile, the keyboard failed intermittently , the touchpad didn't work at
all, i attached an eternal keyboard and mouse to get around that but it
would overheat and lockup after a few hours of use. It did however work
fairly well until it overheated, by which I mean it randomly did weird
stuff but it wasn't bad enough to make it completely useless.


-Max

--
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Hi max...

I'd be inclined to feel the same way as you, except that I was using the
keyboard/system for a few hours after the spill, with all the keys working
(although the space key was sticky). It wasn't until I did the water rinse
that I got the issue with keys not working... I sussepct that if I had kept
on using the box, it would have kept working...

Although, i'm also inclined to think the box might eventually be toast...



Thanks


-----Original Message-----
From: fedora-list-bounces@redhat.com
[mailto:fedora-list-bounces@redhat.com]On Behalf Of max
Sent: Thursday, August 14, 2008 5:36 AM
To: For users of Fedora
Subject: Re: laptop keyboard soaked by a soft drink!


bruce wrote:
> Hey guys...
>
> Screwed up and spilled a soft drink on my laptop keyboard (toshiba
> satellite). The keyboard was working, but sticky, so I decided to remove
the
> keyboard and rinse it in distilled water and let it thoroughly dry in the
> hot sun.
>
> Long story short, some of the keys are no longer working... Looks like I'm
> going to have to order a new/replacement keyboard. Any thoughts on what
> direction I might take on this.
>
> Oh, by the way, when I boot up the system, the system gives an alert,
> doesn't go through the CD/HDrive process. When I select the HD from the
boot
> process the system boots up... I can deal with this though, as I don't
boot
> the laptop that often..
>
> Any thoughts on the keyboard issue would be useful.
>
> Thanks
>

Cleaning the keyboard is unlikely to be much help at this point.
Keyboards are cheap anyway. I would be more concerned by how much soda
hit the motherboard and you can be sure that some did, I would refrain
from turning it on until I took it apart and very carefully located and
cleaned all the soft drink out, just look for the sticky parts, it may
well be that nothing is actually wrong with your keyboard but that what
your are seeing is board failure, the laptops days likely are numbered.
It sounds like you don't want to hear it but that is the reality of the
situation. OTOH i was using a laptop that had beer spilled on it for
awhile, the keyboard failed intermittently , the touchpad didn't work at
all, i attached an eternal keyboard and mouse to get around that but it
would overheat and lockup after a few hours of use. It did however work
fairly well until it overheated, by which I mean it randomly did weird
stuff but it wasn't bad enough to make it completely useless.

-Max

--
Fortune favors the BOLD

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bruce wrote:

Hi max...

I'd be inclined to feel the same way as you, except that I was using the
keyboard/system for a few hours after the spill, with all the keys working
(although the space key was sticky). It wasn't until I did the water rinse
that I got the issue with keys not working... I sussepct that if I had kept
on using the box, it would have kept working...

Although, i'm also inclined to think the box might eventually be toast...



Thanks



One of the common misconceptions is that if the hardware is faulty it
won't work at all or if I spill something on it and it keeps working
then all is well. It is certainly possible that that can be true but I
have seen exactly what is happening to you, it works then fails outright
or at intervals, its directly related to the spill, based on your
statements so far I have no doubt of that and the boot issue is further
proof. It may continue to work or it may not or it will work
intermittently and fail randomly. Backup anything you can't stand to
lose now.


-Max

--
I shall not fear, fear is the mind killer. Fear is the little death that
brings total obliteration. I will face my fear, I will allow my fear to
pass over and through me. When my fear has passed I will turn my inner
eye to mark its path and there will be nothing and only I will remain.


--Frank Herbert from Dune

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2008/8/14 Brian McKee <brian.mckee@gmail.com>:


But that's the point. The drive and partition numbers can and do
change - UUID doesn't.


Except when resizing the swap with gparted, where /dev/sda5 does not
change but UUID does.

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On Thu, 2008-08-14 at 08:35 -0400, max wrote:
> i was using a laptop that had beer spilled on it for awhile, the
> keyboard failed intermittently , the touchpad didn't work at all, i
> attached an eternal keyboard and mouse to get around that but it would
> overheat and lockup after a few hours of use. It did however work
> fairly well until it overheated, by which I mean it randomly did weird
> stuff but it wasn't bad enough to make it completely useless.

Now you know what happens when you get a computer drunk... ;-)

I've not had to clean computer keyboards, but I have had to clean sugary
drinks, and worse, out of other equipment. Leave it to students to come
up with inventive ways to ruin equipment.

As in that other cleaning thread, lots of unpolluted alcohol is one way
to attempt to clean crap out of something without damaging the item,
further. Gentle scrubbing with alcohol and a toothbrush on the surfaces
that you can make content with, and just flushing for the bits that you
can't get into. But the chances are, though, that spills onto a
keyboard will have gotten past the keyboard, and other parts would need
cleaning too, and with ALL power removed (take out all the batteries,
including the CMOS one).

--
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2.6.25.14-108.fc9.i686

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On Thu, Aug 14, 2008 at 11:20:40PM +0930, Tim wrote:
> On Thu, 2008-08-14 at 08:35 -0400, max wrote:
> > i was using a laptop that had beer spilled on it for awhile, the
> > keyboard failed intermittently , the touch-pad didn't work at all, i
> > attached an eternal keyboard and mouse to get around that but it would
> > overheat and lockup after a few hours of use. It did however work
> > fairly well until it overheated, by which I mean it randomly did weird
> > stuff but it wasn't bad enough to make it completely useless.
>
> Now you know what happens when you get a computer drunk... ;-)
>
> I've not had to clean computer keyboards, but I have had to clean sugary
> drinks, and worse, out of other equipment. Leave it to students to come
> up with inventive ways to ruin equipment.
>
> As in that other cleaning thread, lots of unpolluted alcohol is one way
> to attempt to clean crap out of something without damaging the item,
> further. Gentle scrubbing with alcohol and a toothbrush on the surfaces
> that you can make content with, and just flushing for the bits that you
> can't get into. But the chances are, though, that spills onto a
> keyboard will have gotten past the keyboard, and other parts would need
> cleaning too, and with ALL power removed (take out all the batteries,
> including the CMOS one).

As others noted keyboards are inexpensive....
I have seen the most inept replace one. Most laptop vendors will
send one via return mail.

It is nearly impossible to clean the contacts and keys of a keyboard.

Note that pure alcohol will not clean up sugar. You might need
a jug of distilled water and use pure water or mix alcohol+water.

The soft toothbrush works. In the past I used a gentle vacuum and a
small wash bottle to rinse local areas (I worked in a repair department
20+ years back).

At some point the motherboard will have been washed to remove
solder flux so a wash in pure water followed by a good drying
can recover some MBs. Gone are the days where you could use a
dishwasher and even then depending on the local water supply you could
do more damage than good.

Fans do not like gunk like sugar...

Look at the list of ingredients on what ever you spilled. Colas
and most soft drinks contain phosphoric acid. Over time it will
react with the contacts and traces wrecking the electronics. This
is in part why it might work for a while then die a long and painful
death.

Can you say "backup".....



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Nifty Fedora Mitch wrote:
<snip>
> Note that pure alcohol will not clean up sugar. You might need
> a jug of distilled water and use pure water or mix alcohol+water.

pure alcohol will clean sugar. i do not recommend it on membrane carbon
contacts. just plain warm water.

i have used it on circuit boards for many years because it will evaporate
better than just water. i do use and prefer a degreaser agent, such as
dichlorofluoroethane when i am not out. there are several others that i
use, but am out of now so i can not pass along their names.

they are available thru any well stocked electronics supply [excluding
radio shack]. brand names are; 'crc industries', 'tech spray', 'chemtronics',
'gc electronics'. most all are non ozone, epa approved, and plastic safe.

> The soft toothbrush works.

better to use a brush in an inline steel handle. gets into tight areas better.

> (I worked in a repair department 20+ years back).

i started in electronics in radio and tv work in 1953, age 13. 'rewrote'
us air force 'basic electronics manual' in late 1960. designed first
'exclusive or' logic circuit with relays in 1965, converted it to transistors
in late 1966, and discrete logic circuits in 1969. started designing discrete
logic circuit controllers in early 70's. built my first micro computer in 1974,
s100 system in 1975.

i could elaborate, but no need and rather not.

<snip>
> dishwasher and even then depending on the local water supply you could
> do more damage than good.

no disagreement there. pure distilled is always best with electronics.

<snip>
> Over time it will
> react with the contacts and traces wrecking the electronics. This
> is in part why it might work for a while then die a long and painful
> death.

if not properly cleaned soon enough. defining soon enough is hard part.

> Can you say "backup".....

if he has a desk top, 3.5 to 4.25 drive connection adapters are available.


- --
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g
.


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On Fri, Aug 15, 2008 at 12:02:33AM +0000, g wrote:
>
> > (I worked in a repair department 20+ years back).
>
> i started in electronics in radio and tv work in 1953, age 13. 'rewrote'
> us air force 'basic electronics manual' in late 1960. designed first
> 'exclusive or' logic circuit with relays in 1965, converted it to transistors
> in late 1966, and discrete logic circuits in 1969. started designing discrete
> logic circuit controllers in early 70's. built my first micro computer in 1974,
> s100 system in 1975.
>
> i could elaborate, but no need and rather not.

I was giving some room for the new kids to tell
me that my reply was dated. Not that I was an expert
in the current tricks of the trade.

Depending on the sugar solubility in alcohol is very low
when compared to water. But since pure +99% alcohol is
not common this is not obvious....

Even 100 proof is only 50% alcohol so outside of a chem lab
most of us will not be impacted by the solubility issue.

Multiple sugars, multiple alcohols... all different
so who knows what chemicals the OP might end up trying.

BTW: I recall wishing I could afford to buy some of those S100 boards.
My pockets were not deep enough at that time.

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