"Jeff Liebermann" wrote in message
...
On Sun, 23 Mar 2008 05:54:54 -0400, "Eric Cire"
wrote:

I'm thinking of opening up my old Playstation 2 console as I get constant
"disc read error" and so been looking at this repair guide video and
noticed
on top of the Ps2 DVD drive it says a warning "Laser radiation when open"
so
my question is:

Is there any laser radiation risk when the console/drive is turned off and
unplugged?

No power, no light, no problem. If you're seriously paranoid, you can
buy some cool looking laser eye protection safety glasses.
http://www.cyber-mag.com/station/laser.html

For PS2 CDROM repair instructions, see:
http://www.cyber-mag.com/station/laser.html
Tweaking the pots increases the laser driver current, which shortens
the lifetime. I've "fixed" some cdrom drives this way, only to have
some of them fail permanently after a few days.


For a lasting professional repair, tweaking the laser power pot is never a
recommended strategy for the short term failure reasons that you state.
There are a few exceptions to this rule - notably Pioneer lasers - where
setting the laser current is an official documented part of the overall
setup procedure.

Arfa