Build Your Own Arcade Controls Forum
Main => Monitor/Video Forum => Topic started by: Paul Olson on May 23, 2009, 02:16:56 pm
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Any idea what would cause this distorted image? I am assuming it is a yoke alignment problem, but I really don't know anything about that. This monitor also has a questionable vertical circuit. I had a vertical line in the center, and couldn't find the problem; all of the transistors in the circuit tested OK. One day it magically fixed itself, and the picture shows what came up then. Any ideas?
Thanks,
Paul
(http://i16.photobucket.com/albums/b6/pcolson/Picture050.jpg)
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vert position and linearity is off a bit .
position may be an adjustment . linearity will likely be a 'lytic cap that is changing value (in vertical circuitry) .
sudden performance changes that "magically fixed itself" can be loose connections on pcb.
time for a visual inspection of the pcb , and resolder anything that looks questionable....
qrz