The first move - check/replace D11 (since it "prepares" both Inv and Sync sygnals)
OK
D42.9? or D42.8?
This TV may have no RGB inputs on SCART (not sure).
To D42.9. When connect to D42.8 the screen is almost black.
But it really doesn't matter since you've got right(this model hasn't got RGB input on SCART).