"James Sweet" wrote in
newsE9Vi.191$gl1.79@trndny09:


Yes it very well may. Since freeze spray would take the parts it
hits
below the dew point in nearly any place around, it will condensate
water immediately. One thing that LCD interfaces do NOT tolerate is
moisture between the contacts, and we already mentioned that it is
NOT going to be a component in a failure mode. So where exactly do
you think this freeze spray should be pointed such that it is going
to fix a problem, or show where one is at?

It won't, put simply. NORMAL finger pressure placed onto the
contactors at the LCD interface connections will do far more toward
those goals than introducing a moisture laden failure prone procedure
ever will.

Freeze spray is for zapping a suspected transistor or FET with, not
a
connectivity based mechanical contact issue. There is a place and
time for every fix in electronics, and freeze sprays and low voltage
LCD panel edge connections are NEVER one of them.



Well poking and prodding often works as well, but I use freeze spray
all the time, have been for years and I've never had a problem with
condensation but then I don't live in a sauna. You don't need to hose
down the whole thing and turn it into a popsicle, just a quick shot
here and there. It's great for tracking down marginal capacitors,
cracked solder joints, bad solder under BGAs, bad connectors, anything
where the problem is intermittant. When a little squirt causes an
immediate change in operation you know right where to look.




I prefer to squirt the spray on a Q-tip and put that on the suspect part.
I've seen people get into trouble using freeze spray directly,get led down
a false path.

--
Jim Yanik
jyanik
at
kua.net