The "Always On" voltages required for the Super I/O chip to function. +1.2VP: The dedicated power rail for DDR4 RAM. 2. Charging Circuit (Charger IC)
Laptops that won't charge or don't recognize the battery often have faults in the charging area. The schematic identifies the (commonly a BQ-series chip) and the MOSFETs responsible for switching between battery and AC power. 3. Super I/O and BIOS
For data recovery or drive recognition problems. USB and Audio: Pin-to-pin mapping for peripheral ports. Common Troubleshooting Scenarios The "Dead" Motherboard La-e791p Rev 2.0 Schematic Diagram
2.0 (Includes specific circuit refinements over the 1.0 version). Architecture: Integrated SoC (System on Chip) design.
Always pair this schematic with the Boardview (.CAD or .BRD) file if available. While the schematic tells you how components are connected electrically, the Boardview shows you exactly where they are physically located on the PCB. The "Always On" voltages required for the Super
Features a complex DC-to-DC conversion system to step down 19V adapter power to 5V, 3.3V, 1.0V, and CPU core voltages. Key Sections of the Schematic 1. The Power Sequence (Power Rails)
For troubleshooting "no backlight" or "no display" issues. Charging Circuit (Charger IC) Laptops that won't charge
The LA-E791P (often codenamed C5V01 ) is a DDR4-based motherboard typically supporting Intel Skylake or Kaby Lake processors.
The is more than just a drawing; it is a diagnostic tool. Whether you are dealing with a liquid spill, a BIOS failure, or a burnt power MOSFET, this document ensures you are working with data rather than guesswork.
Understanding the Compal LA-E791P Rev 2.0 Schematic Diagram For laptop repair technicians and electronics enthusiasts, the is an essential roadmap. This specific motherboard—often found in the Acer Aspire A315-51 and A315-33 series —is a complex piece of engineering. Having the schematic allows you to move beyond "parts swapping" and perform precise component-level repairs. Technical Specifications Overview