Acer AL2032W AL2032W Service Guide - Page 31
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3. No audio No Audio No Check Input source Or Change CN9 Check Input Signal CN9 OK ? OK Change U12 or U9 Check CN6 to Speaker OK ? OK No Check U12(Pin9) & U9 OK ? OK Check U9Pin1(Mute) & Q10 & U9 OK ? No Change Speaker or CN6(Cable) No Change Q9 or U9 - 31 -