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How to activate "Noise Reduction" that is greyed out in OSD advanced settings?


Please refer to below table for possible causes and corresponding actions to take:

Possible Cause Action to Take
Possible Cause
No source is detected.
Action to Take
Connect to an input source.
Possible Cause
ISF mode is enabled.
Action to Take
Disable ISF mode.
Possible Cause

Input timing is:

- 3840 x 2160

- 4096 x 2160

Action to Take


Select input timing other than 3840 x 2160 and 4096 x 2160.

Refer to user mamual for supported timings.

Applicable Models

HT3550, HT3550i

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