Vizio VP42 HDTV20A Service Manual page 18

B. Audio：(Bold: Default)
a. Volume (0~100, 25)
b. Bass (0~100, 50)
c. Treble (0~100, 50)
d. Balance (-50~50, 0)
e. Surround (ON/OFF)
f. Speakers (ON/OFF)
CONFIDENTIAL DO NOT COPY Page 3-10
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File No. SG-0221