Anyway, I soldered the 'CX' point per the GH-071-42 install diagram (which is the board I have), and everything worked except backup DVD9 games (I don't have original DVD9 games, so not sure about those). So I wondered if it's not just another mistake (there's also a mistake for some other pin for the V7: 39001 units as well). I found that odd, since the layout in the area appears to be exactly the same, with the same components on both builds. The only different connection was the point 'CX'. Prior to installing a modbo 4.0 on a GH-071-41 yesterday, I compared the two install diagrams of the 2 variants: GH-071-41 & GH-072-42, and they're almost identical in terms of board layout. Hi, There seems to be a mistake in the Modbo 4.0 install diagrams (available on the web) for some of the 9000x units., mainly the two boards GH-071-42 & the GH-072-42. The 9000x has a few variants, mainly the two boards GH-071-42 & the GH-072-42. There seems to be a mistake in the Modbo 4.0 install diagrams (available on the web) for some of the 9000x units.