Diagram showing the backlight paths for the Xiaomi Poco X3 Pro, delivered as a 2.57 MB PDF. It concentrates on the display backlight circuit, which is the area to check when the phone works but the screen stays dark or dim. Technicians use such guides to follow the boost converter, coil, diode and filter components, measure the backlight voltage and find open lines or shorted capacitors near the display connector. Make sure the display itself is good before board work, and confirm the unit is the X3 Pro rather than the X3 NFC.
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