La-e791p Rev 2.0 Schematic Diagram

La-e791p Rev 2.0 (also known as CSL50/CSL52) is a specialized motherboard schematic used primarily in

The schematic covers a system architecture typically built around the Intel Skylake-U (6th Gen) or Kaby Lake-U (7th/8th Gen) processors. La-e791p Rev 2.0 Schematic Diagram

Disclaimer: This article is for educational purposes. Schematics are copyrighted by Dell/Compal. Ensure you own the physical motherboard before downloading proprietary repair data. La-e791p Rev 2

LA-E791P Rev 2.0 (code-named ) is a professional-grade motherboard schematic designed by Compal Electronics for mid-range HP laptops . It is primarily found in the series and Visual Inspection: Open the schematic to Page 2

  1. Visual Inspection: Open the schematic to Page 2. Check all public points (PJP400 - DC Jack). Look for burnt MOSFETs PQ5001/PQ5002.
  2. Measure DC-in: Use the schematic to find the main fuse (PF5001). Is 19V passing? If not, short.
  3. Check REGN: Look at U5000 (BQ24780S). The schematic says Pin 24 (REGN) should output 6.0V. If 0V, IC is dead.
  4. Check ACOK: Trace the ACOK line. It should go high (3.3V). If low, the schematic leads you to the pull-up resistor (RP5003).
  5. Finally, LDO: Check +3.3V_ALW and +5V_ALW. If absent, the schematic directs you to check the enable signal from the SIO (IT8987E).