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Re: Opening AppleColor RGB, need safety tips!



Mitchell Spector (spector@vax2.concordia.ca) wrote:
: 	Before I go on, is the following normal?

: 	- With the screen totally black (ie, a screen saver), and
:           the brightness knob set just slightly above the center
:           position, is it normal is see a distinct BLUE color?
:           If I'm not mistaken, I should see black, or at the
:           very least a light or dark grey, but I'm not.

[snip]

I cured all kinds of problems with my monitor such as wrong colors and having
to fiddle with brightness/contrast constantly by adjusting the focus pot inside
the monitor. I'd try that then worry about other stuff.

: 	Now, unless someone else out there has a monitor like this,
: I'm going to assume there's something wrong. I suspect the Red voltage
: gun has weakened with age, and playing with the R-Drive and B-Drive pots 
: on the CRT circuit board might fix this. However, before I go poking 
: inside my monitor to adjust things, I'd like to hear some safety advice. 
: If I get an _all plastic_ tool (like a color TV adjustment tool from 
: Radio Shack) will this protect me from getting zapped when turning the 
: pots? Is keeping one hand behind my back all I need do to be protected 
: (and of course avoid touching anything that carries high voltage)? I'd 
: have to adjust the tint with the back opened and the monitor's power 
: _on_, so I'm a little nervous about this. It may seem I'm being somwhat 
: paranoid here, but I hear there's enough high voltage to *kill* you 
: in there! :|

I used a metal screwdriver last time, the knobs are plastic. You could go low
budget/low tech and use the pointy pocket clip thing of a Bic pen cap, like I
used to adjust voltage and some other knobs inside my Mac 128 recently.
I wasn't about to stick something metal in the metal screws on it.
-- 
Randy Shackelford                                 I was internet
shack@southwind.net                               when internet wasn't cool