20 Schematic Better ((new)) — Lae801p Rev

(also known by its CSL50/CSL52 design codes) typically features the following hardware:

Problems in the Real-Time Clock (RTC) circuit can prevent the board from completing its power-on sequence. Graphic Conversion (UMA Enable):

Supports Intel Sky Lake-U or Kaby Lake-U processors (BGA 1356P). Memory: Dual DDR4 SODIMM slots. lae801p rev 20 schematic better

Managed by a complex sequence of VRM controllers, including dedicated regulators for +3VLP, +5VALW, and +3VALW. Common Issues & Troubleshooting Steps

Verify if 19V is passing through the first and second MOSFETs (e.g., PQA1). (also known by its CSL50/CSL52 design codes) typically

Ensure the 3.3V and 5V standby voltages are present. A common failure point on this board is the source side of the power-in MOSFETs showing unusually low resistance (e.g., 7Ω), which often indicates a short circuit in the downstream rail. No Display Issues:

Many "No Display" cases on the LA-E801P are resolved by flashing a fresh, tested BIOS binary. Managed by a complex sequence of VRM controllers,

Options for UMA (Integrated) or discrete GPU (AMD R17M-M1/M2) with dedicated DDR3L VRAM.

The is a critical resource for technicians repairing HP 15-BS series laptops. While the Rev 1.0 version is more widely available online, finding the specific Rev 2.0 diagram is essential for troubleshooting newer iterations of this motherboard that may feature updated power rails or component layouts. Core Technical Specifications LA-E801P motherboard

Technicians frequently use the LA-E801P Rev 2.0 schematic to resolve several recurring motherboard faults: