LAE791P Rev 20 is an updated schematic for the LAE791P board/module. The verified schematic includes component identifiers, reference designators, net names, power rails, connectors, and key signal paths (clock, reset, data buses, power sequencing). It reflects corrections from earlier revisions and adds updated decoupling, connector pinouts, and protection components.
If you have downloaded the , follow this structured diagnosing methodology:
The Compal LA-E791P motherboard is commonly found in mainstream Dell Inspiron and Vostro series laptops (such as the Dell Inspiron 15 3567 / 5567 series) powered by Intel 7th Generation Core processors (Kaby Lake U-architecture) or 6th Generation (Skylake) processors. Key Specifications: lae791p rev 20 schematic diagram verified
2. Symbol & Footprint Consistency • 3 custom symbols found (U‑CUSTOM1, J‑CUSTOM2, X‑CUSTOM3). • U‑CUSTOM1 pins 5 & 6 swapped vs. datasheet – corrected.
2.0 (often backwards compatible with 1.0 troubleshooting) Primary Processor: Intel Sky Lake-U (Integrated SOC) Supported Devices: HP 15-BS525UR, HP 15-BS526UR, HP 250 G6 Key Components: Dual-channel DDR4 memory architecture Integrated Power Management IC (PMIC) Realtek Audio & LAN controllers HDMI and SATA interface logic Core Circuit Sections LAE791P Rev 20 is an updated schematic for
Sometimes hosts the schematic, though usually in a "view-only" format.
The MLCCs (Multi-Layer Ceramic Capacitors) filtering the +PWR_SRC rail are under constant thermal and electrical stress. A single shorted capacitor can pull the entire 19.5V rail to ground. If you have downloaded the , follow this
A quick can highlight out‑of‑spec items.