Daewoo DTJ28A7

Service Menu Daewoo DTJ28A7
Turn on TV, tune in channel 91, enter the MENU, then PICTURE, download all
resolution (Sharpnes), exit the menu, press the keys: red, green and
menu on the remote control
Pressing: MENU,
6, 4, 8, 3. Displays the text "TEST". Click: VCHIP.
Now you can select the number (1,2,3,4, 7,8,9) to enter the
different settings menus. To exit: POWER