La-9413p Rev 1.0 Schematic Free Jun 2026

Known as the "VALA1" or "VALA0" platform, this board utilizes a 4th-generation Intel Haswell processor in an (often marketed as PGA94). It's paired with a Mobile Intel HM87 Express Chipset (PCH) and can be configured with either integrated Intel graphics or a dedicated AMD Radeon HD 8690M / 8790M / 6970M GPU.

A multimeter and a soldering iron are useless without a map. Here is why the schematic is critical:

The “LA‑9413P” designation is a Compal Electronics board number assigned to a specific printed circuit board design. Compal – one of the world’s largest laptop ODM manufacturers – produces motherboards for Dell, HP, Lenovo and others. On Dell laptops, the Compal board number is usually printed directly on the PCB. The Rev 1.0 indicates the first revision of that design, and the board is often dated or later.

: The schematic helps identify specific Mosfets and ICs that may have shorted. Where to Find the Files la-9413p rev 1.0 schematic

What is the (No power, no display, or liquid damage)? Do you have a multimeter and DC power supply ready? Are there any visible burn marks on the board? AI responses may include mistakes. Learn more

Check the linear regulator outputs (LDOs), usually labeled +3VLP or +5V_ALW_LDO . If the LDO is missing, the main chip or a direct short on the rail is likely present. Embedded Controller (EC) / Super I/O

The Compal LA-9413p (VAW50) motherboard is a widely deployed laptop platform, most notably used in the Dell Latitude 3540 series. For board-level repair technicians, system engineers, and electronics hobbyists, having access to and understanding the is the difference between diagnosing a scrap board and completing a successful component-level repair. Known as the "VALA1" or "VALA0" platform, this

[DC-IN / Battery] ──> +B (19V Main Rail) ──> +3VALW / +5VALW (Standby) │ [System RAM Powered] <── +1.35VGS / +1.35V <────┼──> [Power Button Pressed] │ │ [CPU VCORE / Graphic Rails Awake] <──────────────┴──> +3V / +5V (Run Rails) The Primary DC-In and Charging Node (+B Rail)

Fault 2: Motherboard Powers Up briefly, then Shuts Down (Looping)

Locate the 3V/5V PWM controller. Ensure it receives 19V VCC. Check for the LDO outputs (+3VLP) which directly wake the ENE KB9012 controller. Here is why the schematic is critical: The

These rails must be present as soon as the AC adapter is plugged in:

Dual-chip architecture utilizing Microchip MEC5075 and MEC5048 controllers. ⚠️ Critical Variant Warning: eDP vs. LVDS