Dell W1700 - 17" LCD TV User Manual page 68

FACTORY Reset the setting to default values.
RESET
NO: Keep the setting as current.
YES: Load factory setting
EXIT Exit from this menu
INPUT SELECT Select video source for main display:
TXT2
TXT3
TXT4
Note: "CLOSED CAPTION" is available for composite video only.
PC ANALOG: PC VGA input
PC DIGITAL: PC DIGITAL input
TV TUNER: Antenna or cable TV input
COMPOSITE: Composite video input
S-VIDEO: S-video input
COMPONENT: Component video input
TV Mode