Dell Power Board for Monitor (5E.42J02.011)

When a Dell E-series monitor stops turning on or its backlight flickers, the fault is often the power board. This replacement power supply inverter board restores reliable power delivery and CCFL backlight operation in compatible Dell E170S, E190S, and similar models.

Key specifications

• Product type: Power supply inverter board
• Manufacturer part number: 5E.42J02.011
• Brand compatibility: Dell
• Compatible monitor models: Dell E170S, E190S, E170SC, E190SC, E170ST, E190ST, E170SF, E190SF, E170SP, E190SP (and similar series)
• Function: Provides power to monitor components and drives CCFL backlight lamps
• Input voltage (AC): 100-240 V AC
• Output voltages (DC): Multiple DC outputs (e.g., 5V, 12V, 24V) for logic and display panel
• Backlight technology: CCFL (Cold Cathode Fluorescent Lamp)
• Number of CCFL outputs: 2
• Connectors: AC input, DC output headers, CCFL lamp connectors, control signal header
• Board material: FR-4 PCB
• Mounting type: Screw-hole mounting points
• Protection features: Over-current protection, short-circuit protection
• Condition: New

Why choose it

This board is a direct replacement for the original Dell part, matching the required electrical characteristics and physical layout. It eliminates the need to replace an entire monitor, saving cost and reducing electronic waste.

Ideal use cases

• Repairing a Dell E170S or E190S monitor with no power or no backlight
• Restoring functionality in office or home monitors
• DIY electronics repair and refurbishment projects

Good to know

Installation requires opening the monitor and handling high-voltage components. Ensure the monitor is unplugged and capacitors are discharged before replacement. This board is intended for technicians or experienced hobbyists.