When looking at the schematic diagram for the ILPI-354 V.A, the circuit is divided into several logical blocks. Tracing these blocks step-by-step is the key to successful diagnosis. Input Protection and EMI Filtering
Usually arranged in a push-pull or full-bridge configuration to drive the inverter transformer. Ilpi-354 V.a Schematic
Failed CCFL lamp or failing inverter transformer. When looking at the schematic diagram for the ILPI-354 V
This section takes the low-voltage DC from the SMPS secondary side and steps it up to high-voltage AC (often exceeding 600V AC) to power the monitor's CCFL backlight tubes. Ilpi-354 V.a Schematic