Sound Section in Desktop and Laptop Motherboard

Sound Section in Desktop and Laptop Motherboard


Sound Section is providing Sound signal to Sound port. In this section use a Sound IC like ALC883, 886/5, 662 AC97CODEC, CX20561. 

If this section is not working then create a problem No Sound come from Motherboard. In this condition Check 3.3v on sound IC , this supply coming from ATX PWR CN Pin No.1/2. If supply ok but same Condition then check SMD Resistor Near Sound IC and Resold IC But Same Condition finally Replace IC. 


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