Help with Ducksan arcade monitor

[pathfndr]

I just picked up a korean arcade cabinet "a joy-ro". From a korean that speaks no english. Well to the point i thought it was a cga monitor but when i went to rotate it i found besides the jamma hook up it has a vga cable coming off of it.  On the back of the chassis it says it a Ducksan, but no model number. Also on the back it says cga/vga auto switch. I have searched the net and found it might be a Ducksan Type 20-Monitor but i think this one is only cga. Any help or knowledge would be great. I am assuming its like a wells gardner u3100 and i can plug my arcade vga straight in but i don't want to fry anything not knowinig the whole story. Thanks all.

[Ken Layton]

Merit Industries and Williams Electronic Games (the pinball maker) were the only USA game manufacturers to use Ducksan monitors. Merit has some information on Ducksans on their tech info page and FAQ page at www.meritind.com

The "type 20" is indeed a CGA resolution and came in two versions: "type 20 - old" and "type 20 - new". The first model to be used in the USA was type 19 which is also a CGA resolution. Type 35 is also a CGA.

The VGA models are types 50 through type 59. Be aware that all 'types' may carry the same model number! You have to look at the fine print on the model sticker and the cable for the video signal input to be sure you have a CGA or VGA resolution monitor. The type numbers are what Merit Industries used to refer to the many incarnations of the Ducksan. Ducksan is also spelled two different ways: Ducksan and Duksan.

The very first Ducksans to enter the country were imported by Pacific Display Technology (PDT) and had PDT stickers on them identifying them as a PDT product when in fact they are really Ducksan monitors (type 19 and type 20 - old). All Ducksans have a switching power supply onboard and do not need an isolation transformer. If yours has a VGA video cable on it you should be able to go right ahead and plug a VGA video source into it.