Wiring Diagram for a '90 RG570

[Acidhouse]

I am doing an electronics swap from a '90 Rg570 to a '91 RG570 body. When I removed the electronics, I thought I had done a good job of drawing out the diagram but as I tried to rewire it yesterday, I saw that my diagram wasn't complete. I went to the Ibanez website and found http://www.ibanez.com/support/wiringdiagrams.aspx. The earliest diagram they have for an RG570 is 1994. This diagram does not match how my '90 was wired. I don't know if they had swapped the switch. Is there some way to find a wiring schematic for a '90 RG570?

Thanks,