Cinetronic HD7 monitor backlight flickering issues with RED One MX camera and HD-SDI signal problems

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2012Monitors forum

14 years old. Gear and prices may have changed since.

DisputedParticipants disagreed and reached no conclusion. Read the findings as positions, not as an answer.

The Cinetronic HD7 monitor can experience backlight brightness fluctuations when connected to a RED One MX camera, with the backlight switching between different levels every few seconds.
HD-SDI frame synchronization issues can cause monitor flicker, and rebooting the monitor through power cycling may provide temporary relief but does not solve the problem long-term.
The issue appears specific to RED One MX HD-SDI output rather than a monitor defect, as other cameras like Alexa, F900, AF100, F3, and F35 do not produce the same flickering when connected to the same monitor.
RED One MX is known to have problematic HD-SDI jitter in its video outputs.
Downconverting HD-SDI signals eliminates frame synchronization issues that can cause flickering in high-definition monitors.
The problem may originate from the HD-SDI signal quality of the RED One MX or its downconversion through a Decimator device rather than from the XCS sled or PDL overlay.
Cinetronic monitors use LED backlighting which runs cooler and lasts longer compared to older CCFL fluorescent backlights found in previous monitor models.
An HD-SDI distribution amplifier with reclocking capability can address signal synchronization problems, available at moderate cost with low power requirements.
The Decimator 2 does not have a built-in reclocking function, though some earlier Decimator models or alternative devices like the MD-RDA reclocking distributor amplifier provide this capability.

The exact root cause remained unresolved in the thread after testing.
Flickering behavior described by different users appeared in different forms, suggesting potentially multiple causes.
The proposed reclocking amplifier solution was not definitively tested and confirmed to solve the problem before the thread ended.
Discussion focused primarily on RED One MX; compatibility with other camera systems is unclear.