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Maverike-prime
03-24-2007, 10:37 PM
Hey all, I'm getting ready to start on a small project of building a computer into the back part of the case for a CRT monitor and mounting an LCD monitor in the front (YEah yeah kinda like the old eMac design.) Before I start pulling screws out, is there anything I should be aware of and watch out for in the monitor? The monitor is dead so I'm not worried about damaging the system, just the case itself. But I know some CRT systems use capicitors in their design which can retain a charge even after being unplugged. So I figured best to ask someone who knows before I start arc welding with my fillings.
lockyb
03-25-2007, 02:01 AM
not sure...
if u have heard that i advise wearing rubber gloves to prevent shock, plus its not delicate work so the gloves shouldnt really prevent u from gettin the job done..
best to be careful wen pullin apart stuff such as monitors
Spacehonkey
03-25-2007, 10:48 AM
I asked a similar question a while back and this was one of the responses I got back.


As far as crt's go, I have pulled a crt out of our warehouse that had not been powered on for over a year. There was still a charge on the wire that leads to the top of the tube! (the thick high voltage wire usually red (for DON"T TOUCH!)).

When I was fixing TV's (many moons ago at my Dad's shop), I would attach a thick wire to ground, then to a large screwdriver, then slip the screwdriver under the rubber grommet connected to the high voltage wire and short/bleed out the voltage. Just keep your hands out of the way! Once that is done, the high voltage wire can be removed by pinching it together. BTW in some systems as much as 27kv travel through that wire! I watched one day as my dad touched one of those wires (it was cracked in the area he touched), and saw a spark jump from the top of his ass crack to a heater register over an inch away! It left a scar... (yes tv repairmen also suffer from plumbers crack!)

So I would just be real careful and use a volt meter to see if there still is a charge on any of the wire like that deadly red wire mentioned in the quote.