(Compal ABL51) is a laptop motherboard schematic and boardview commonly used in HP 15-AF series
Often the BQ24770. If this fails, the battery won't charge or the system won't detect the AC adapter. La-c781p Schematic
These are expensive, high-TDP machines. When they die, they tend to die spectacularly—usually due to power delivery issues. The schematic is the only thing standing between a $1,500 paperweight and a working workstation. (Compal ABL51) is a laptop motherboard schematic and
The million-dollar question for any technician: Where can I download the LA-C781P schematic? When they die, they tend to die spectacularly—usually
Runs on battery, sees AC, but charge % stays same.
The entry point of the 19V DC-in often features two N-channel MOSFETs. If these are shorted, the board will be completely dead with no lights. The schematic helps identify the "gate" signals coming from the charging IC to see if they are being driven correctly. C. Corrupted BIOS/EC Firmware
The LA-C781P motherboard (also known as ZAM70/ZAM80) is built on the Intel Broadwell-U platform. It typically features: Integrated Intel Core i3, i5, or i7 (5th Gen). Memory: Two DDR3L SO-DIMM slots supporting up to 16GB. Graphics: Integrated Intel HD Graphics 5500. Chipset: Integrated Platform Controller Hub (PCH). Core Power Rails and Voltage Charts