LCD backlight section of the Samsung SM-A12 (Galaxy A12) schematic, provided as a 3.40 MB PDF. It shows the backlight driver, its inductor, diode and output lines to the panel, which matters when the image is faintly visible under a torch but the screen stays dark. Checking the boost output voltage and the continuity of the backlight path usually locates the fault. Variant suffix and board revision are not stated in the name, so compare designators with your mainboard. Opens in any PDF reader.
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.
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The standard format for schematics, block diagrams, power-sequence charts and service manuals.