Using the schematic to trace the eDP (Embedded DisplayPort) connector pins to ensure backlight voltage and data signals are reaching the screen. Where to Find the Files

The schematic defines signals like SLP_S3# , SLP_S4# , and SLP_S5# to manage the transition between active, sleep, and hibernation modes. Common Repair Scenarios

Since these are proprietary documents, they are typically found on specialized technician forums or paid schematic databases. You can often find the NM-C561 Schematic or Boardview on platforms like , The Tech Stall , or Scribd .

The is the primary technical blueprint for the Lenovo IdeaPad S145-15IKB laptop motherboard. This document, often paired with a boardview file, is essential for professional technicians performing component-level repairs, such as fixing "no power" issues or liquid damage. Core Technical Specifications

Utilizes the ITE IT8586E chip for power management and keyboard control. Storage: Support for both SATA HDD and NVMe SSD interfaces. Critical Power Rails and Signal States

Technicians typically use the NM-C561 schematic and boardview to solve the following common failures:

Involves checking the charging IC circuit and the communication between the battery and the ITE IT8586E EC chip.

Understanding the power sequence is vital for troubleshooting. The NM-C561 schematic outlines several "Always-On" (ALW) and "Suspend" (VS) rails:

Often caused by short circuits in the +19V (B+) input rail or failure of the 3.3V/5V buck converter IC.

Integrated DDR4 memory with one SO-DIMM expansion slot.