Dell Monitor Power Board PLPCJ9391KQD1 - Replacement Power Supply Board

Restore a Dell monitor to full operation with this replacement power board. Designed for internal installation, it converts AC mains input to the DC voltages required by the monitor's mainboard and panel. This board is used by service technicians and advanced DIY repairers when the original power board has failed due to capacitor aging, power surges, or component fatigue.

Key specifications

• Board part number: PLPCJ9391KQD1
• Alternative part number: 715G5778-P01-000-0020
• Input voltage: AC 100-240V, 50/60 Hz
• Multiple DC outputs for mainboard and panel
• Maximum output power: 70W
• FR-4 PCB, screw-in mounting

Why choose it

This board matches the original Dell component for the listed monitor series, ensuring proper fit and electrical compatibility. It includes over-voltage, over-current, and short-circuit protection to safeguard the monitor during operation.

Ideal use cases

• Repairing a Dell monitor that does not power on
• Replacing a faulty power board in S-series, U-series, or P-series monitors
• Restoring functionality to models such as S2340L, U2412M, or P2414H

Good to know

Installation requires opening the monitor and handling AC mains components. Only qualified personnel should perform the replacement. Verify the part number and connector layout before ordering.