Humax Set-Top Box - Manual (Page 35)

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3. A/V Output Setting
This menu lets you adjust the audio and video output, match the screen ratio to your TV, select the display format according to the
screen ratio, select the TV standard and set the NTSC mode.
You can choose the Dolby Digital audio stream whenever possible by selecting "On" in the Dolby Digital setting.
4. UHF Tuning
You can select UHF Channels for your TV and adjust fine tuning setting. The channel range and frequency change according to PAL
Standard.
5. Other Setting
You can adjust the transparency level of On-Screen Display (OSD), set the
display time of the i-plate when switching services and select automatic or
manual mode to change to the reserved service.
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