ALC3223 is a High Definition (HD) Audio Codec IC manufactured by Realtek Semiconductor, commonly used in budget and business-class laptop motherboards. It appears in select models from Dell, HP, Lenovo, and Acer, where it delivers reliable onboard audio for everyday laptop use.
This IC handles speaker output, headphone jack detection, and microphone input. In motherboard repair cases, a faulty ALC3223 typically results in no sound, distorted or low audio, microphone failure, or headphone jack not detecting, making it a practical and frequently requested replacement IC.
Although it belongs to an older generation, ALC3223 continues to see real demand in the laptop repair market due to the large installed base of compatible notebooks.