Schematic | La-c781p

💡 If the laptop has no power, check for 3.3V on the power button pin and the BIOS chip (U1) first. Common Failure Points on the LA-C781P

Use the first few pages of the schematic to understand how the CPU, PCH, and RAM interact. La-c781p Schematic

If the standby voltages are missing, this IC or its surrounding capacitors are likely culprits. 💡 If the laptop has no power, check for 3

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 The LA-C781P motherboard (also known as ZAM70/ZAM80) is

Often the BQ24770. If this fails, the battery won't charge or the system won't detect the AC adapter.