[ltp] Coffee in X61

[Ted Frater]

Hendrik-Jan Heins wrote:
> Ok, so it sounds like I should try to clean it again with alcohol.
> However, I am a bit wary of the fact that I think the issue is liquid
> between the sheets that make up the keyboard.
> I guess also with alcohol I run the risk that liquid stays lodged here.
>
> Does anyone know of a trick to get it out from between the plastic
> sheets wit hthe contacts on them?
>
> Thank you.
> Hendrik-Jan
>
>
> 2011/2/7 Leon Brokken <leon.brokken@med.lu.se>:
>   
>> On 02/07/2011 01:10 PM, Martin Schuster (IFKL IT OS DS CD) wrote:
>>     
>>> On 02/07/2011 12:44 PM, Pedro Ribeiro wrote:
>>>       
>>>> [...]
>>>> As mentioned, I rinsed it under the tap, and I dried it with a blow
>>>> dryer (de-ioniser switched on, don't worry).
>>>> It has been drying like that for about 3 to 4 hours.
>>>> But it is still acting up in such a way that I think there is water
>>>> between the plastic sheets.
>>>>
>>>>         
>>> What about rinsing it with sth that evaporates easily? Alcohol e.g.;
>>> Acetone is most likely a bad idea :)
>>>       
>> Isopropanol would be best.
>>
>> Leon.
>>
>> --
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>>
>>     
Liquids creep between almost anything non adsorbent by capilliary 
action. so you have to reverse this process.
The sure way is to put in a vacumn chamber at a temperature say 50 Dec 
C, that will cause the liquid to boil out of the capilliary gaps as a 
vapour. The vacumn has to have a stronger pull on the liquid than the 
capilliary action holding it in.  It might be propitious to get a price 
for a replacement keyboard.
Something more risky would be to put it in an electric oven set to 70deg 
C for 4 hours.
hotter than that might distort the plastic keys and the contact membrane 
let alone the silicone rubber springs under the keys.
Ted.

.