Backlight circuit of the Samsung SM-A11 schematic, delivered as a 4.33 MB PDF. It shows the backlight driver, its boost inductor, diode, output capacitors and the LED anode and cathode lines to the display connector. Useful when the screen shows a faint image with no light, letting you measure the boost output, check the inductor and find shorted capacitors. Any PDF viewer opens it; verify the PCB revision of the phone matches so component designators line up correctly.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @phoneSchematics. Enginerys does not host this file.
How to open a .pdf file
The standard format for schematics, block diagrams, power-sequence charts and service manuals.