Schematic — 17ips72

If you're repairing a issue:

Often caused by a failure in the standby PWM section. 17ips72 schematic

FAN7529 (PFC Controller), often paired with MOSFETs like the D25XB80 bridge rectifier or specific PFC MOSFETs. Capacitors: If you're repairing a issue: Often caused by

Scenario: A Lenovo Legion 5 17ACH6 with motherboard marking 17IPS72 REV 1.0. Symptoms: No power, no charging LED, barrel jack gets warm. no charging LED

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The integrated LED driver takes the secondary rail and boosts it to provide constant current to the screen's backlights.