: If you're unable to find an official schematic, you might consider reverse engineering. This involves tracing out the circuit on the board and creating a schematic from it. This can be time-consuming and requires a good understanding of electronics.
Revision 3.0 boards often suffer from localized corrosion around the power management area. Pay close attention to the small resistors and capacitors near the BQ24725A. bdl51 lad711p rev 30 schematic work
Working on the involves high voltage (up to 400V DC on the primary capacitor and up to 200V on the LED output). : If you're unable to find an official