, the "VA" designation often refers to the specific ribbon or connector interface for the LCD lamp/LED backlight. Voltage Test Points
While a single "updated" official PDF is rarely released publicly by the manufacturer, technical communities often document the following board specifics for repair:
: Uses a standard bridge (D1–D4) and bulk storage capacitors (C1, C2). PWM Controller : Often utilizes the or similar LinkSwitch-HF ICs for high-frequency switching. Inverter/LED Driver ilpi354 va schematic updated
Stop measuring voltage on the ILPI354 pins directly. The pitch is 0.5mm—one slip of the probe and you short VREG5 to GND, killing the IC instantly.
Please ensure you're working from the current revision. Questions or feedback? Drop a comment below. , the "VA" designation often refers to the
: A large electrolytic capacitor (often rated around 68µF/450V in similar Dell designs) that stores high voltage. Power MOSFET
491A011H1400H03 or similar serials found on the back of the board. Inverter/LED Driver Stop measuring voltage on the ILPI354
: Provides a granular view of integrated circuits, resistors, and capacitors.