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Author Topic: Does the K4900 series monitors use an isolation transformer  (Read 2841 times)
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jjohnston2004
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« on: September 27, 2014, 06:54:34 pm »

Hello all,

I picked up a Moon Patrol conversion cab running a jamma board (Dj Boy). I noticed the cabinet currently has an isolation transformer that it seems to be not wired to use. If anyone has experience with the K4900 series monitors, do you know if it needs to run through an isolation transformer?

Thanks,
Jj
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P-feif
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« Reply #1 on: September 27, 2014, 08:20:47 pm »

Here's a link that someone else gave me. It's a WG 4900 manual.


http://www.vernimark.com/arcade/archive/monitor/mon_rc__wg-19k-4901-06-51-56.pdf
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« Reply #2 on: September 27, 2014, 09:06:57 pm »

My WG K4900 does require an isolation transformer (even labeled so on the power cord to it).   You could ruin the monitor if it doesnt have isolation.
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« Reply #3 on: September 27, 2014, 09:08:07 pm »

Thread about dangers of not using an isolation transformer
http://forums.arcade-museum.com/showthread.php?t=280792
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jjohnston2004
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« Reply #4 on: September 28, 2014, 10:18:47 am »

thanks everyone -- after looking at the existing isolation transformer it looked like it burned out and the previous owner decided to bypass it rather than buying a new one and doing it the right way.

Amazing!

Thanks Again
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