To select parameters press channel up or down.
To change the data value press volume up/down button
To save the change press display button.
To exit factory mode menu press menu button.
Turned off apparel Daewoo 20DTC-T1,
Press button following sequence Display > Menu > 3 > 8 > Power
Enter the option "adjustments " mode.
Warning :
Do not alter the values that appear in " OPTIONS " on the screen
Photo credit : flowtv.org
Daewoo 20DTC-T1 TV Service menu (All TV Service Menu Code)
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"Daewoo 20DTC-T1 TV Service menu"
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Daewoo 20DTC-T1 TV Service menu mode, Daewoo 20DTC-T1 TV factory mode Written on May 26, 2015