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I had a fon once that was dropped in clean water. I got it back to working condition after a few days, but in a year or so the contacts started to fail and the thing became very difficult to use, so I replaced it. YMMV

joe salerno


-----Original Message-----
>From: "Hood, Mark" <[log in to unmask]>
>Sent: Sep 9, 2012 7:49 PM
>To: [log in to unmask]
>Subject: Re: [ARSCLIST] Underwater Zoom H4n
>
>I would personally hold off on the contact cleaner until last.  There are
>very few devices on the circuit board that require lubrication.  Any
>actual mechanical switches will also require rigorous exercise (slide them
>back and forth many times) with or without contact cleaner.  Only
>switches, potentiometers/sliders and jacks will benefit from the
>lube/clean spray - printed circuits just get oily.
>
>Mark
>
>On 9/9/12 12:13 PM, "Timothy Wisniewski" <[log in to unmask]>
>wrote:
>
>>Thanks, everyone for the helpful tips!  I've rinsed and bathed the
>>Zoom in fresh water and its now buried in a large bowl of uncooked
>>white rice (medium grain is all I had at hand), where it will remain
>>for at least 2 days.  If this doesn't work, would you recommend
>>opening the zoom and spraying the circuit board with an electrical
>>contact cleaner, followed by another bath/rinse in distilled water
>>and 2 day rice burial?
>>
>>Best,
>>Tim
>>
>>On Sep 9, 2012, at 11:56 AM, Hood, Mark wrote:
>>
>>> I would recommend distilled water for the de-salting bath as
>>> opposed to
>>> plain tap water, which still contains many dissolved salts and
>>> minerals
>>> that will coat switch contacts and the like.
>>>
>>> I recall a sweat-drenched Sony wireless body-pack transmitter that
>>> completely ceased to function after being strapped to a particularly
>>> athletic theater performer (despite being wrapped in TWO protective
>>> condoms).  Assuming it was permanently DOA and having nothing to
>>> lose, I
>>> bathed it repeatedly in distilled water and blew the vapors off
>>> with a can
>>> of compressed air.  It then spent a few days in the hot, dry
>>> airstream of
>>> an amp rack.  It powered back up and performed without complaint
>>> for the
>>> rest of the tour.
>>>
>>> I've never tried the rice drying technique, but it seems credible...
>>>
>>> Best,
>>> Mark
>>>
>>> Mark Hood
>>> Assistant Professor of Music
>>> Department of Recording Arts
>>> IU Jacobs School of Music
>>>
>>>
>>>
>>>
>>> On 9/8/12 9:40 PM, "Richard L. Hess" <[log in to unmask]> wrote:
>>>
>>>> My son walked into my brother-in-law's pool with his Blackberry.
>>>>
>>>> We pulled the battery, ran it under fresh water, and then very gently
>>>> with a hair dryer to no avail.
>>>>
>>>> Two days in a cup with uncooked rice and it's been working ever
>>>> since.
>>>>
>>>> With chlorine or salt, you need the fresh water ASAP.
>>>>
>>>> I don't know what this will do to the mics, but I think his
>>>> Blackberry
>>>> mic is even OK.
>>>>
>>>> Cheers,
>>>>
>>>> Richard
>>>>
>>>>
>>>> -- 
>>>> Richard L. Hess                   email: [log in to unmask]
>>>> Aurora, Ontario, Canada           (905) 713 6733     1-877-TAPE-FIX
>>>> http://www.richardhess.com/tape/contact.htm
>>>> Quality tape transfers -- even from hard-to-play tapes.
>>
>>Timothy Wisniewski, M.L.I.S.
>>
>>Visual Materials Archivist
>>Alan Mason Chesney Medical Archives
>>Johns Hopkins University Medical Institutions
>>5801 Smith Avenue, Suite 235
>>Baltimore, MD 21209
>>
>>http://www.medicalarchives.jhmi.edu/