Need now to draw this on paper to have at hand





ThanksLooks correct to me. If you take a pic of solder side we can be sure.
As for D506, you can solder the jumper wire to any of the yellow points (cathode), best would be B. White points are the anode (connects to yellow pad near the switching trasformer (see my previous pic). And of course you need to put a diode there. The part number in the schematics (30DF4) is not familiar to me (probably somehing Chinese). You can use RGP10J or BA157. And don't forget C333 (1000uF 35V).
View attachment 57364