Optoma ML1000 - Adjusting Audio Volume

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ho W t o aD j u S t vo l u m e - So u r c e : SD ca r D / uSB fl a S h Dr I v e
ho W t o aD j u S t vo l u m e - So u r c e : vga / vI D e o / hDmI
Press • / on the remote control or swipe Up/Down on the touch pad to adjust volume.