To choose picture aspect ratioNormal4:3 ModePress ZOOM button to select thedesired picture ratio. Three kindsof models (i.e.,Wide Screen and 4:3Mode ) can be selected in turn.aspect ratio"Normal", " " ""1 Press MENU button and then CH+/- button , till the ADJUSTmenu shown on the right display on the screen.1 Using ZOOM button.2 Using button.the MENUWide Screen2 Press CH+/- button to select Display Mode option,then press VOL+ button to select the desired option.Note: Under the HDTVVGA and DVI signal,there are only Normaland 4:3 mode to adjust.AUDIOADJUSTTUNINGFUNCTIONTIMERMENUPICTUREDisplay ModeAdjustRGBDefaultAuto SyncColor TemperatureBlack Stretch OffNormalNormalAdjust menuSTILLSLEEP PIPTV/AVP.STD S.STDH.LOCKCH.LIST EXITSCANSWAPTIMER ZOOMABC@ DEFJKL%GHI$ MNOSTUVPOR& WXYZ*#()MUTEDISPLAYCH+CH-VOL- VOL+MENUIt does notwork onthe TVmode.Aspect ratio Picture effectNormalWidescreen4:3 modeno cut out on input signal picture with un-changedscale displayed on the screen(to keep the scale,maybe only the center area of the screen is active)input signal is vertically cut out by 10% and picture'scenter area is non-linear zoomed to fill the wholescreenChoose 4:3 when you want to view a picture with anoriginal 4:3 aspect ratio, with black bars appearing atboth the left and right sides.