SKU: 21795574718

Blackmagic Design Spares - ATEM 1M/E Prod Studio 4K - PCB Mezz

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Description

Blackmagic Design Spares - ATEM 1M/E Prod Studio 4K - PCB MezzThe Blackmagic Design Spares ATEM 1 M E Production Studio 4K Mezzanine PCB (often called the I O Board) is the secondary circuit board that sits directly above the Main PCB in the 1RU chassis. While the 2 M E and 4 M E models are larger, this 1 M E "4K" variant is incredibly dense. The Mezzanine board is responsible for the physical interface of the 10x 6G SDI inputs, the 1x HDMI input, and the various SDI Program and Aux outputs. Core

The Blackmagic Design Spares - ATEM 1 M/E Production Studio 4K - Mezzanine PCB (often called the I/O Board) is the secondary circuit board that sits directly above the Main PCB in the 1RU chassis.

While the 2 M/E and 4 M/E models are larger, this 1 M/E "4K" variant is incredibly dense. The Mezzanine board is responsible for the physical interface of the 10x 6G-SDI inputs, the 1x HDMI input, and the various SDI Program and Aux outputs.


Core Responsibilities

  • High-Speed I/O: Manages the physical 6G-SDI connectors. It handles the signal equalization needed to maintain a clean 4K image over long cable runs.

  • HDMI Interface: Houses the HDMI input circuitry, including the HDCP handshake logic and EDID management.

  • Reference & Sync: Processes the "Ref In" (Genlock) signal, ensuring the switcher is frame-synchronized with your cameras.

  • Data Bridge: Down-converts or prepares the incoming high-bandwidth video data to be sent through high-density connectors to the Main PCB for processing (Keys, DVE, and transitions).


When to Replace the Mezzanine PCB

  • SDI "Blackout" Bank: All inputs (1–10) are dead or showing "No Signal," but the ATEM Software Control shows the unit is connected and healthy.

  • HDMI Port Failure: The HDMI input is physically loose or fails to recognize any signal, while the SDI ports work fine.

  • Physical BNC Damage: If a BNC connector has been sheared off or the internal center pin is broken, the entire Mezzanine board is typically replaced to maintain broadcast reliability.

  • 6G-SDI Jitter: The unit works perfectly in 1080p, but the image "tears" or loses sync as soon as you switch to a 4K Ultra HD video standard.


Technical Installation Note

Repair Level: 4 (Advanced).

  1. The Nut Removal: You must remove the silver hex nuts and washers from all 15+ BNC connectors on the rear. A $14\text{mm}$ deep-well socket is the best tool for this.

  2. Board-to-Board Connectors: The Mezzanine board is joined to the Main PCB via several multi-pin headers. Warning: You must lift the board perfectly vertically. Tilting it during removal can bend the pins on the Main PCB underneath, which is a catastrophic failure.

  3. Thermal Pads: High-bandwidth 6G-SDI chips generate significant heat. You must ensure the thermal pads on the underside of the Mezzanine board are present and making contact with the internal heatsinks/chassis.

  4. Chassis Flex: Because the BNC ports are soldered to the board but poked through the chassis, ensure you don't over-tighten the BNC nuts, which can put "bowing" stress on the PCB.


Diagnostic: Mezzanine vs. Main PCB

  • It's the Mezzanine Board if: You have a Multiview output and the software connects, but your inputs are missing.

  • It's the Main PCB if: The unit won't boot, won't connect to Ethernet, or if the Multiview itself is black or garbled.

Expert Advice: If you are losing signal on just one or two ports, check for "cold solder joints" on the BNC legs where they meet the PCB. Sometimes a simple reflow with a soldering iron can save you the cost of a full replacement Mezzanine board.

Are you seeing a failure on the HDMI input specifically, or are the SDI banks failing to register your cameras?

Shipping Notes
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Exchange/Return Notes
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SKU: 21795574718

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Barbara McCloud
Alexandria, US
★★★★★ 5
Nice and strong
Color: Black, Size: Wheel-6 Panel
Nice and strong, tedious, putting together, but very good quality
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Reviewed in the United States on March 17, 2026
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Al Tompkins
Phoenix, US
★★★★★ 5
if you are going to be moving them a lot, buy something more sturdy.
Color: Black, Size: Wheel-6 Panel
I use these at our churchc. They are pretty good, not terribly study and the screw that hold the faabric have pulled out in a couple of places. But they wqould work especially well if you were not constantly moving them as we do. They are a bit of a pain to assemble.
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Reviewed in the United States on January 20, 2026
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Julie Lincoln
West Palm Beach, US
★★★★★ 4
Easy to put together , decent quality
Color: Black, Size: Wheel-6 Panel
Purchased for office, easy to put together , durable quality , exactly what we needed to partition a small space
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Reviewed in the United States on November 15, 2025
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Amazon Customer
Carnegie, US
★★★★★ 5
Nice and sturdy
Color: Grey, Size: Wheel-8 Panel
Good privacy wall
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Reviewed in the United States on May 31, 2026
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Steven J.
Omaha, US
★★★★★ 1
Super Low Quality/Unacceptable QC
Color: Black, Size: Wheel-6 Panel
I spent probably about an hour putting it together, only to take it right back apart and pack it up to return. The dimples for half the poles were on the wrong side (double and triple checked to make sure they couldn't be spun around. The threaded ends for the wheels were freely spinning on all but 2 wheels, making it impossible to actually tighten them fully. Once it was all put together, the screens could not be folded up to neatly put it aside when not in use. All in all, this was shamefully low quality for the money spent.
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Reviewed in the United States on July 22, 2024

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