Do you have access to a with current readout?
If the laptop turns on, the fan spins, but there is no image on the screen, the issue usually points to missing CPU core voltage ( +CPU_CORE ) or a corrupted BIOS.
The repair community has documented common issues with this board. Here are a few insights:
If a short exists, open the LA-E802P Boardview file and search for the net name connected to the shorted inductor or MOSFET. Dkl50 La-e802p Boardview
"Struggling to repair an HP DKL50 motherboard? You need the LA-E802P boardview.
Use the boardview to find test points or pins for vital secondary rails: +5VS , +3VS , +1.8V_PRIM , and +1.0V_PRIM .
An open-source, cross-platform software that easily handles .BRD and .BDV files. It is lightweight and supports smooth panning and zooming. Do you have access to a with current readout
Link in the description."
If you have successfully downloaded a .fz , .cad , or .brd file, you cannot open it with standard PDF readers. You require specialized software. The most popular free software is (Open source, multi-platform) or PCBRepairTool .
The is a laptop motherboard designed by Compal Electronics for HP, serving as the foundation for many popular budget and mid-range laptop series from the 2017-2018 era. Models that use this board include the HP 15-bs series, HP 15q series, and the HP 250 G6 . Here are a few insights: If a short
Located near the USB-C/DC-In jack, crucial for troubleshooting "no power" issues. Charging IC: Manages the battery and charging logic.
Open the LA-E802P schematic PDF. Search for the 3.3V/5V PWM regulator controller (often an IC made by Richtek or Texas Instruments, labeled as PU301 or similar on Compal boards).