Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
Don't need HV to attract particulate contamination just a difference in"AZ Nomad" <aznomad.3@PremoveOBthisOX.COM> wrote in message
news:slrni8kk5g.k1q.aznomad.3@ip70-176-155-130.ph.ph.cox.net...
On Fri, 10 Sep 2010 08:01:14 -0700, William Sommerwerck
grizzledgeezer@comcast.net> wrote:
Plasma screens don't employ high enough voltages to attract anything.
CRTs had 20 times the voltage and I don't recall them ever being
great smoke magnets.
Electrets.
Color CRTs commonly have anode voltages of 20K and higher, and attract
dust
like crazy.
duh, uh, oh yeah. I'd forgotten about how much I used to have to dust
CRTs.
In any case plasma tvs don't use such voltages. I've been using a 50"
plasma tv for the last 3 years and can only recall cleaning
it a couple of times, mostly to remove fingerprints.
I think this tv was in a particulary dirty smoke environment due to the
amount of crud just inside the case.
I noticed an intermentent shutdown after air dusting the PSU board. Took
it back apart to find all kinds of sticky dust bunnies on the back of
the board. It looks like they were shorting out the PSU due to one being
quite black as if it were burned.
And to the case of HV attracting dust I think it is true.. The dust /
crud follwed the HV traces on the PSU..
Hopefully thats all that was wrong.
On Sat, 11 Sep 2010 23:11:12 +0900, Michael Kennedy <mike@nospam.com> wrote:
I think this tv was in a particulary dirty smoke environment due to the
amount of crud just inside the case.
I noticed an intermentent shutdown after air dusting the PSU board. Took it
back apart to find all kinds of sticky dust bunnies on the back of the
board. It looks like they were shorting out the PSU due to one being quite
black as if it were burned.
And to the case of HV attracting dust I think it is true.. The dust / crud
follwed the HV traces on the PSU..
Hopefully thats all that was wrong.
I've done PC repair on ones owned by smokers and you wouldn't believe how
nasty they can get inside. One one system, I had to go wash my hands
with 409 every time I reached inside the case for any reason. My hands would
literally sting from the tar and god knows what else.
Unrurprisingly, every exposed moving part in the PC had failed. (power supply
and cpu fans, floppy drive, cdrom) fucking nasty.
And they wonder why those people die young!