Look for the Charging IC (e.g., BQ247xx series).
: A common failure point where the board powers on but fails to initialize video, often requiring specialized SOC-level diagnostics. Power Rail Issues La-e791p Rev 2.0 Schematic Diagram
LA-E791P Rev 2.0 , also known as the motherboard, is a proprietary laptop system board manufactured by Compal Electronics. It is commonly found in budget to mid-range laptops, such as models from the Technical Architecture Overview Look for the Charging IC (e