Richard C. Steffens wrote:
> On 05/24/2011 12:08 PM, Keith Lofstrom wrote:
>
>> But the easiest thing to fix, and a likely cause of your
>> problem, is dust. High voltage systems attract dust, and
>> cat hair, and all sorts of crap, which can overload
>> (temporarily) the inverter. Bachelor lifestyles are not
>> good for dust control. Taking the monitor apart and
>> cleaning the dust out with vacuum and Q-tips might help.
>> Compressed air is fast, but creates static electricity.
>
> I respect your education and experience on hardware issues, but I have
> to ask about it anyway. Years ago I was taught not to use a vacuum
> cleaner to remove dust because it creates static electricity by the high
> velocity air moving through the plastic nozzle of the vacuum, and that
> canned air was the non-static solution.
>
> Did the rules change, or was I given a bum steer?
>
Enough facts there to be almost possibly correct, on occasion ;)
{tongue somewhat [*ONLy* somewhat] in cheek}
The basic kernel of truth in this is that static electricity can
and does do nasty things to semiconductor devices {including any
consumer monitor in last several decades}.
I personally would not worry about a vacuum - think about which
direction air is flowing.
As to using compressed air to clean:
1. never use air from typical air compressor - too much
dirt/oil/water/crud/etc.
2. canned compressed air (preferably dry nitrogen) probably OK:
a. I guess cans with plastic tubes to direct stream *might*
theoretically produce static charged stream.
b. My personal experience is using an all metal
nozzle/trigger assembly attached to a metal canister
while I was connected to equipment ground with an
anti-static wrist band. {I also tended to work on
equipment for which a fingerprint was a short circuit.}
I would probably be more concerned about the brush and how it was
used.
P.S. - understand there is a new technology out - transistors ;/
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