Humax CI-5100X - Manual (Page 22)

Guide of Main Menu
E21
Set the video mode for the TV SCART output.
Set the audio mode which is output from the TV SCART and
RCA/Cinch Jack. (Stereo/Mono)
lf Dolby Digital option is ON and the broadcaster provides
the Dolby Digital stream, the Dolby Digital audio language is
firstly selected when changing the service.
Select the aspect ratio of TV which is connected to
STB(4:3 or 16:9).
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.
Adjust this value between 3.58 and 4.43 if your TV displays the
video only in black and white color. Normally NTSC 3.58 mode is
used worldwide, but some TV sets can support only NTSC 4.43
mode.
A/V Output Setting
Video Output(CVBS/S-Video/RGB)
Audio Output
Screen Mode
Dolby Digital
Display Format
NTSC Mode