"Beachcomber" wrote in message
...
On Mon, 27 Mar 2006 19:03:04 -0500, William P.N. Smith
wrote:

Don Bruder wrote:
At the voltages that can be running around in the back of a crt,
cleaning out accumulated "crud" is a damn good idea, since, as you say,
some of it may well be (semi)conductive.

Even if it's inert, it'll have a negative impact 'cause it's acting as a
blanket, keeping components hotter than they would be if running in
"free air" conditions.

Just make sure you know where the high-voltage connector is, and how
to discharge it, these things can hold a lethal charge long after you
unplug them... IIRC you want to clean around the high-voltage power
supply, lead, and tube connector with isopropyl.

If you have a source of compressed air, it's a good idea to blow out
all the dust (outdoors, of course). That way, you will get all the
dirt in the nooks and crannies.

Beachcomber



I've always used a vaccum cleaner with the hose on the exhaust side
with the crevice tool attached. I even restrict the air output with my
hand or finger over the port to get more air velocity.