Dell Power Board for Monitor (21204-00902) - Power Supply & Inverter Board

Restore your Dell monitor to full functionality with this dedicated power supply and inverter board, engineered for reliable AC-DC conversion and CCFL backlight driving.

Overview

This board is a direct replacement for the Dell part number 21204-00902. It integrates both the switching mode power supply and the inverter for cold cathode fluorescent lamps, ensuring your monitor’s backlight operates correctly. The board accepts a wide input voltage range of 100-240V AC at 50/60 Hz and provides the necessary DC outputs to power the monitor’s logic and panel.

What stands out

• Combines power supply and inverter functions on a single PCB, simplifying repair.
• Compatible with multiple Dell monitor models: 1703FP, 1704FP, 1901FP, 1904FP, 1905FP, 2001FP, 2005FP, 2007FP.
• Includes over-current, over-voltage, and short-circuit protection for safe operation.
• Alternative part numbers: 490101300100R, 490101300100, 490101300100B.

Technical details

• Input voltage: 100-240V AC, 50/60 Hz
• Output voltages: +5V, +12V, +24V DC
• Backlight technology: CCFL
• Connectors: Internal 3-pin AC header, multi-pin DC output header, 2-4 pin CCFL connectors
• Mounting: Screw-down
• Condition: New

Our verdict

A reliable replacement board that restores power and backlight to compatible Dell monitors, with the essential protection features for long-term stability.