Humax NA-4710T User Manual - Page 23

A/V Output Setting Video Output (CVBS/S-Video/RGB) Set the video mode for the TV SCART output. Audio Output Set the audio mode which is output from the TV SCART and RCA/Cinch Jack. (Stereo/Mono) Screen Mode Select the aspect ratio of TV which is connected to STB (4:3 or 16:9). Display Format Select the format which the video is to be displayed on screen. When your TV set is 4:3 and video source is 16:9, STB will display in Letter-box or Centre mode as selected. When your TV set is 16:9 and video source is 4:3, STB will display in the Pillar-box or Full mode as selected. GB22