Slightly OT: Old CRT displays vs. new LCD

Tony Duell ard at p850ug1.demon.co.uk
Mon Dec 3 17:23:01 CST 2007


> True.  For a long time I used a 1600x1280 mono Sun monitor, and it was
> a real joy.  But years ago it dimmed into unusability, and it looks as

I normally measure hte CRT electrode voltages (and any other voltages I 
can think of, like the video amplifer supply, main PSU outputs, etc) in 
any old monitor I depend on and write htem down in the back of the 
manual, or on the schematic -- that is the values in _my_ monitor 
displaying a normal (for that machine) picture.

Then, if it starts to fade, I can re-check them and see if the problem is 
the CRT loosing emision or something cheaper to fix like the 1st anode 
(g2) voltage going low due to a dead capacitor.

-tony


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