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With a black and white image,is it totally green or just shaded green? If just shaded a bit,then you could make the adjustments,but without some kind of colorimeter (color analyzer),you'd be ballparking the adjustments.
However,you could still correct the greenish tint by eyeball.The only controls that you'd be able to see a visable change would be the low IRE levels,labelled either rbkg,bbkg,gbkg or rcut,bcut,gcut.The DRV controls are for the higher IRE levels and you can't always see the changes.
If you could find a way to input a gray scale stairstep test pattern,you could adjust until you have a decent transition from balck to white,with the middle bars looking gray,not puple,green,brown,red,etc.
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