If you use Magic TV:
1. Some monitors do not display 50Hz, or perform a bad conversion, try both 1080p/50 and 1080p/60 output modes from Magic TV and see which work better. You may need to rely on the Magic TV front panel to change this setting if your monitor does not display anything from the default 1080i/50 signal.
2. If your LCD monitor has no speaker, turn off HDMI Audio. You can use the RCA analog audio output or digital audio outputs from Magic TV.
3. Set Image mode to Dynamic for each channel