PDF document named bl9384, 337 KB, filed as a schematic. The name carries only this code, so the device is not stated; BL-prefixed numbers are common for power management and LED driver ICs, and this may be a datasheet or application circuit for such a part. Technicians use these documents to read pin functions, typical application circuits and reference voltages when checking a regulator or backlight driver on a board. Compare the marking on the chip with the document before relying on pinouts. Opens in any PDF viewer.
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 @gunvantrathore. 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.