For the Oppo A15 (Model numbers usually or CPH2189 ), this diagram is essential for:
: Circuits for the 6.52-inch IPS LCD, including light and graphics solutions. Power Management Oppo A15 Schematic Diagram Pdf
: Outlines the connections for the LCD backlight and touch screen digitizer, often used to resolve "black screen" or touch unresponsiveness. For the Oppo A15 (Model numbers usually or
Connections between power ICs, capacitors, and inductors that regulate voltage across the motherboard. Oppo A15 Schematic Diagram Pdf