Build Your Own Arcade Controls Forum
Main => Monitor/Video Forum => Topic started by: Scottacus on February 26, 2015, 04:20:30 pm
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I turned on my Gorf game earlier today and the WG 4606 had a great picture but made a high pitched sound while it was running. This is the first time it did anything like this and I let the game run for about a half hour before turning it off. I restarted the game after about 10 minutes or so it did not make the same sound again Any ideas as to what this was?
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Here is a link to a recording that I made from just below the monitor inside the cab. Because the sound is so high pitched, it is hard to tell exactly where it is coming from.
https://drive.google.com/file/d/0BxG5uAhqDuKIdnA1YnA1aldsSjg/view?usp=sharing (https://drive.google.com/file/d/0BxG5uAhqDuKIdnA1YnA1aldsSjg/view?usp=sharing)
The sound is not as loud as the recording makes it because I used a high quality condenser mic that was set fairly hot.
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My guess is that this high frequency sound is being caused by the Flyback Transformer, is this right and if so is there a fix short of replacing it?
Here are a couple of screen shots of the frequency of these signals in case that helps anyone figure out what is generating them.
(http://i1077.photobucket.com/albums/w478/themill_wi/Screen%20Shot%202015-02-26%20at%208.52.56%20PM_zps34ivfisp.png) (http://s1077.photobucket.com/user/themill_wi/media/Screen%20Shot%202015-02-26%20at%208.52.56%20PM_zps34ivfisp.png.html)
There are a couple of smaller spikes at a lower frequency.
(http://i1077.photobucket.com/albums/w478/themill_wi/Screen%20Shot%202015-02-26%20at%208.54.04%20PM_zpskchhaome.png) (http://s1077.photobucket.com/user/themill_wi/media/Screen%20Shot%202015-02-26%20at%208.54.04%20PM_zpskchhaome.png.html)