How high of a temperature is your water???!!!!!
The normal *operating* range, let alone the *storage* temperature range for
just about all electronic components is much higher than what a human being
can take a bath with.
As far as the 68000 goes, I was personally involved with the construction
of a board which used an old 68000 series processor, and we washed those
boards in a commercial Hobart dishwasher.
.... using city water....
Oh well. I will continue to use the dishwasher. I've done it on very
expensive boards, including ones with 10MHz TCXO's. I even calibrated
TCXO's after boardwashing using hot water. No problems ever observed - I
personally calibrated a few hundred of them.
Don't forget - these components also went through wave
soldering.... sometimes the peak temperature after wave soldering was
higher than the washing afterwards.
- Matt
At 08:42 PM 12/28/2001 -0500, you wrote:
>Tried it.
>
>It toasted an EPROM, and a 68000N-10 in a plcc package.
>
>The heat is simply too high.
>
>Also, older boards often use TTL devices in the grey package that is not
>properly passivated. These often go bad without running them through
>a dish washer.
>
>For every person on the list who can look at a given board and decide
>what components may withstand this treatment, there is another who will
>not know a TCXO from any other oscillator, or some other component that
>will not stand this abuse (many won't, and only some of them are listed
>below),
>and dammage something.
>
>
>
>Matthew Sell wrote:
>
> > For those who don't believe that it's okay - prove it to yourself.
> Here's how:
> >
> > 1) Pick a dirty, filthy board that somehow seems to work, and is worth very
> > little to you
> > 2) Make sure it doesn't have:
> >
> > a) relays
> > b) large capacitors
> > c) transformers
> > d) iron-core inductors
> > e) fragile labels or core memory
> >
> > 3) put it in your dishwasher by itself, with no detergent (just for
> > testing), and turn off the plate warmer and dryer
> > 4) wash it!
> > 5) shake off excess water after cycle finishes
> > 6) clean - isn't it?
> > 6) hang up to dry indoors for several days
> > 7) plug it in. Works, doesn't it?!! And clean, too !!!!!
> >
> > Don't take our words for it. Try it!!!! You'll be amazed at how clean the
> > boards get, with so little effort on your part.
> >
> > - Matt
> >
> > At 11:22 AM 12/28/2001 -0600, you wrote:
> > >On Fri, 28 Dec 2001, Bob Shannon wrote:
> > >
> > > > Never run boards through a dishwasher!
> > >
> > >Oh no, not this thread again :)
> >
> > Matthew Sell
> > Programmer
> > On Time Support, Inc.
> > www.ontimesupport.com
> > (281) 296-6066
> >
> > Join the Metrology Software discussion group METLIST!
> > http://www.ontimesupport.com/cgi-bin/mojo/mojo.cgi
> >
> > "One World, One Web, One Program" - Microsoft Promotional Ad
> > "Ein Volk, Ein Reich, Ein Fuhrer" - Adolf Hitler
> >
> > Many thanks for this tagline to a fellow RGVAC'er...
Matthew Sell
Programmer
On Time Support, Inc.
www.ontimesupport.com
(281) 296-6066
Join the Metrology Software discussion group METLIST!
http://www.ontimesupport.com/cgi-bin/mojo/mojo.cgi
"One World, One Web, One Program" - Microsoft Promotional Ad
"Ein Volk, Ein Reich, Ein Fuhrer" - Adolf Hitler
Many thanks for this tagline to a fellow RGVAC'er...
Received on Fri Dec 28 2001 - 21:27:09 GMT