La-c701p Rev 1.0 Boardview ((new))

This board is commonly found in the Lenovo Ideapad 300-15ISK / 300-17ISK series (Sky Lake / Kaby Lake). I have a unit with a no-power condition (20V present, no 3V/5V rails). I suspect a corroded EC or a missing SMC_ON/OFF signal, but without the .BRD file, tracing the power sequence is taking forever.

The file is a digital map of the physical motherboard. When opened in a compatible software viewer (such as OpenBoardView, TSICT, or BoardViewer), it allows you to:

To diagnose a dead LA-C701P board, you must trace the primary power generation steps. The power system initializes in a strict hierarchical order:

Connect a digital multimeter to a ground anchor on the motherboard. La-c701p Rev 1.0 Boardview

You can find the boardview and schematic by searching for the following terms on electronics repair forums: "Dell LA-C701P Rev 1.0 Boardview" "LA-C701P Schematic PDF" "Dell 5558 motherboard boardview"

The is a motherboard model designation, specifically for the Dell Inspiron 15 5558 / 5758 and some Vostro 3558 series laptops (often using the CN-0XJ18H or similar part numbers). The "Rev 1.0" refers to the first revision of this design.

: You can find engineering drawings and detailed block diagrams on platforms like Slideshare Video Walkthroughs This board is commonly found in the Lenovo

This paper provides a comprehensive technical examination of the La-C701p Rev 1.0 motherboard, commonly identified as the system board for the Acer Aspire E5-575G and related laptop series. By utilizing boardview files and schematic analysis, this document details the board’s architecture, power delivery subsystems, critical components, and common failure modes. The analysis serves as a guide for technicians engaged in diagnostics and component-level repairs, highlighting the integration of the Intel SoC platform and the NVIDIA discrete graphics subsystem.

A 61-page engineering drawing that outlines all circuit paths.

: The entry-point N-channel isolation MOSFETs. The boardview allows technicians to locate these components near the power jack to test if 19V is passing through to the main system rail ( +19V_ADPTR ). The file is a digital map of the physical motherboard

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Search for the Pulse Width Modulation (PWM) controller IC responsible for standby voltages. If your laptop shows no power LED indication, pinpoint the inductor outputs for +3.3V_ALW and +5V_ALW to verify if the controller is functioning properly. 3. Embedded Controller (Super I/O)

The KB9022Q features internal flash memory. If the firmware becomes corrupted, the board will remain dead or stuck in a looping power state. You will need an RT809F or SVOD programmer to reflash the EC using the correct binary dump file.

: Allows a technician to click a pin and see every other point on the board that shares that same electrical "net" (e.g., +3VALW or +1.35V_DDR ).

Identify where signals move between board layers. Features of the LA-C701P Motherboard