Lad711p Rev 10 Schematic Top 2021 Page

Generated by the TPS51225R (or similar) controller. These must be present before the laptop can trigger the power-on sequence.

Diodes (Check for shorts in the protection circuits). R/C Series: Resistors and Capacitors. Safety and Precision lad711p rev 10 schematic top

The most common reason for consulting the LAD711P schematic is a "No Power" or "No Post" condition. The top-level power distribution usually follows this path: Generated by the TPS51225R (or similar) controller

The Dell Latitude 3480 and 3580 models are built on the Wistron Tiger-S (LAD711P) motherboard. For technicians and hobbyists, the "Rev 1.0" schematic is the roadmap required to navigate hardware failures, power sequencing issues, and component-level diagnostics. R/C Series: Resistors and Capacitors

Often an ISL88739. If the laptop runs on battery but won't charge, or vice versa, this is the primary component to inspect.

Essential for DDR4 memory and the PCH logic.

Revision 1.0 boards sometimes suffer from corrupted ME (Management Engine) regions, leading to 30-second delay boots or fan-spin-but-no-display issues. Diagnostic Steps Using the Schematic