: Forums like DIY-LaptopRepair host threads specifically for LA-C781P repair guides and schematics.
Laptop dead when AC is plugged. No charging LED. La-c781p Schematic
The LA-C781P is a type of operational amplifier (op-amp) integrated circuit (IC) designed for high-performance audio applications. Manufactured by Sanyo (now part of ON Semiconductor), this op-amp is renowned for its low noise, high gain bandwidth, and excellent distortion characteristics. : Forums like DIY-LaptopRepair host threads specifically for
Connections for the BIOS chip, EC, and charging IC (usually an ISL series). high gain bandwidth
Backlight doesn’t come on, external monitor works.
at the Super I/O to acknowledge a valid power source is connected. Must read . If it reads