Ilpi-354 V.a is a power supply and LED driver board primarily used in Dell monitor models Dell SE2216H
The Ilpi-354 V.A Schematic has numerous applications across various industries, including:
And if you’re still stuck, drop a comment below. I’ve collected about 70% of the circuit from my unit and can share what I have.
| Step | Testing Point / Component | Expected Value / Condition | Common Failures Found | | :--- | :--- | :--- | :--- | | | F850 (Fuse) | Continuity (0 Ohms) | Open-circuit; replace with correct rating. | | 2 | Q850 (MOSFET) | No short between Gate-Drain-Source | Shorted (Source-Drain); replace with equivalent (e.g., SVF4N65F). | | 3 | D854 (Diode) | Diode drop in one direction (e.g., 0.2V-0.4V) | Short-circuit or open-circuit; replace with same type. | | 4 | R845 (Sense Resistor) | ~270 Ohms | Open-circuit; replace with 200 or 100 Ohm. | | 5 | U850 (VDD Pin) | ~14.99V DC | Low voltage (1-2V) indicating faulty startup or IC. | | 6 | R848 (Gate Resistor) | ~10 Ohms | Open-circuit; replace with 10 Ohm resistor. | | 7 | R869 (Current Sense) | ~1 Ohm | Open-circuit; replace with 1.1 or 0.86 Ohm. | | 8 | Secondary Caps | No bulging, correct capacitance | Low capacitance, high ESR; replace with low-ESR types. | | 9 | Backlight Area | No visible damage (RT8557 area) | Burnt IC or shorted output; replace IC and check inductor. | | 10 | Main Outputs | 5V and 18V DC (at main connector) | Missing or incorrect voltages; trace back to earlier steps. | Ilpi-354 V.a Schematic
Orchestrates the high-frequency switching to step down the voltage through the main transformer.
Press and hold the monitor power button for 10 seconds to fully drain stored residual energy.
The ILPI-354 is a compact, multi-section power supply. It integrates primary AC filtering, a main switching power supply, and a secondary backlight driver. The table below breaks down its primary functional blocks: Ilpi-354 V
The ILPI-354 V.A is widely used in the following Dell displays: Dell E-Series: Dell SE-Series: Common Failure Points & Repairs
Due to the compact nature and low cost of the ILPI-354 V.A, sourcing a full replacement board via platforms like AliExpress or eBay is often faster and more economical than attempting complex traces or chip replacements if the primary PCB substrate becomes charred.
: Ensuring that repairs or modifications adhere to the original design specifications to prevent system failure. Integration and Utility | | 2 | Q850 (MOSFET) | No
: One detailed repair log on the DZDU forum reported the following output voltages after repair: 4.975V and 18.81V , which are exactly the correct operating voltages for the monitor. This serves as a valuable confirmation that the board is functioning correctly.
The ILPI-354 V.A is essentially two circuits combined on a single physical printed circuit board (PCB). This integration saves space and reduces manufacturing costs but requires careful troubleshooting to determine which side of the circuit is failing. 1. The Switch Mode Power Supply (SMPS) Section
The Ilpi-354 V.A Schematic is a detailed diagrammatic representation of an electronic circuit, specifically designed for the Ilpi-354 V.A (Voltage Amplifier) device. This schematic provides a visual blueprint of the device's internal components, their connections, and the overall architecture of the circuit.
Here is a checklist of the most commonly reported faulty components on the ILPI-354 V.A.: