Rohde & Schwarz 1091.2320 PULS 230 250 PSUs - where best to tap +12V?

[ci11]

I am planning a CCFL to LED conversion. The factory inverter, the 0048.8766 aka Delta DAC-05B004, has 2x +5V in, but the potential replacement LED inverter requires +10V-24V.

The Service Manual mentions +12V is available on the connector PSU connector at X20.D24. Do I really need to bodge from the mainboard or is there a more convenient location/connection?

For those who has worked on this PSU, where is the best place to tap a +12V from?