Hdmi Black Level - Samsung QN55Q75CNF Service Manual

2. Product specifications

2-4-5. HDMI black level

Settings General External Device Manager HDMI Black Level
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Use HDMI Black Level to adjust the black level to compensate for low black levels, low contrast, or dull colors generated
by external devices connected to the TV via an HDMI cable.
NOTE
This function is only available when the input signal connected to the TV via an HDMI connector is set to RGB444.
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