TRIVIEW TLM-1901W Operating Instructions Manual page 25

select the input signal channel, then press CH button to return to the MAIN MENU.
EXIT：Press MENU or CH button to return to the MAIN MENU.
RESET：Press MENU button to reset all of adjustment to default value except
language and aspect ratio, press CH button to exit OSD menu.
EXIT：Press MENU or CH button to exit OSD menu.
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