17 Apr
2002
17 Apr
'02
9:35 a.m.
-----Original Message-----
From: ard(a)p850ug1.demon.co.uk [mailto:ard@p850ug1.demon.co.uk]
Look for a pot marked 'screen' or 'g2'
or something like
that. It's often
on the flyback transformer in small monitors, could be elsewhere on
larger/high end ones.
For the record, it's "white level" on my monitor. :) It's also very
hard to get at without a pot tweaker (have to get some of those one
day...)
Turning this up might help. The cure might not be
permanent
(in fact it
might casuse the CRT to fail sooner), but it's worth a try.
We'll see -- it's ok for now.
Do take care when working inside a monitor. There are
some nasty high
voltages in there. Although IMHO the CRT electrode voltages are less
likely to kill you than mains (simply because the CRT
electrode supplies
can't source much current), a shock from one of them can be
nasty, and
might cause you to jerk back and cut yourself, or break the CRT, or...
Indeed. I know, but thanks for the warning anyway. FWIW, the Megapixel
monitors are completely shielded even once you open the plastic. There's
a cutout in the shielding for each pot, and looking in with a flashlight,
I can't see much of a way to contact anything except the pots. In other
words, this is probably pretty safe on one of these.
If you've not been inside a monitor or TV before,
then there's a
reasonable set of safety precautions in the sci.electronics.repair FAQ
I might look at that anyway.
Chris
Christopher Smith, Perl Developer
Amdocs - Champaign, IL
/usr/bin/perl -e '
print((~"\x95\xc4\xe3"^"Just Another Perl
Hacker.")."\x08!\n");
'