Samsung SM-A05 backlight schematic, a 6.26 MB PDF page covering the LCD light circuit. It helps with faults where the picture is faintly visible but the screen has no light, showing the backlight driver, its boost inductor, diode and the output lines to the display connector. Measure the boost output and check for open or shorted parts along the drawn path. Open it in an ordinary PDF reader. Confirm the device is an SM-A05 before using it, because backlight circuits vary between Galaxy models.
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.