If you cannot find the exact Rev 1.0 schematic, the Rev 2.0 or LA-C921P (no revision) is 95% electrically identical – only component reference designators may differ slightly.
This report is intended for professional repair technicians and advanced hobbyists working on laptop motherboard repair. 1. Executive Summary The LA-C921P Rev 1.0 is a motherboard codenamed ASL50 , primarily used in Lenovo laptops, most notably the Lenovo Ideapad 330 series (and some 320 variants). The schematic diagram is an essential tool for diagnosing power failures, missing voltages, short circuits, and component-level repair. asl50 la-c921p rev 1.0 schematic