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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Loren Flores Morales
Boise, US
★★★★★ 5
Get this if you draw, write, play touch games
Model: iPad Pro 11,iPad Air 5th/4th
The quality of the screen protector is great, easy to put on without the video. i love how it really feels like writing on paper with my pen especially drawing. I will definitely be buying more for myself,mother and siblings. It’s a good fit for my iPad Air 4th gen and a bang for the buck
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Reviewed in the United States on May 25, 2026
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Jorge L.
Carnegie, US
★★★★★ 4
Good but Installation was a Bit Iffy
Model: iPad A16 11th/10th/Air 11
90% of the time I use my iPad for school. Originally, I used just a regular screen protector, but it would get dirty with smudges and imprints from my Apple Pencil, and there would be a lot of glare since I'm in a classroom most of the time, which would make it awkward to see what I was writing at times. Plus, the screen protector was too smooth so it would actually be difficult to write legibly. This product makes it a lot easier to write smoother on the iPad. I only just installed it, so I can't say much on the smear protection yet, but I can already see the reduction in glare as well. For $8, getting a pack of two of these with an install kit is a very nice deal imo. My only issue was the installation process, which could've been as much my own fault tbh, but I felt like I aligned the screen protector pretty well with the sticker, however the first time I tried installing it it was way off the center (maybe my case got in the way?). The biggest issue was using the squeegee to pop air bubbles, and this is something they don't mention in neither their instruction guide nor video, but you're supposed to used the velvet red side, not the naked white side: using the white side actually takes the grit off the protector, which is obviously something you don't want on a product that relies on it. Thankfully I have another one in reserve in case this one wears off sooner than expected.
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Reviewed in the United States on October 7, 2025
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Breanna
Carnegie, US
★★★★★ 5
Perfect Paperlike substitute
Model: iPad Air/Pro 13
I’ve been using this screen for roughly two months now and I can say it was so worth it, it is rough on plastic nibs! I am going to order some heavier duty ones and see how it fairs! It works just fine ON TOP of a screen protector isn’t that great! I wanted something like paper like but didn’t want to pay that expensive price for something I wasn’t sure I was going to like. This one does the trick and gives me just enough resistance to feel more in control of my pen! It fits well just make sure to know the size if your screen I had to modify where the camera indent was but it cut just fine and looks great!
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Reviewed in the United States on May 24, 2026
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Sarah N Dipity
Alexandria, US
★★★★★ 5
Game changer for Note Taking
Model: iPad A16 11th/10th/Air 11
Great quality, great price, easy to apply. Has completely changed the way I use my iPad and how it feels to write on it.
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Reviewed in the United States on May 23, 2026
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Dylan Moyer
Fort Morgan, US
★★★★★ 5
Feels like paper and makes writing fun!
Model: iPad A16 11th/10th/Air 11
I was hesitant to start using my iPad for class because I HATED how my Apple Pencil sounded hitting the screen while I was writing. This product has completely changed my mind and now I use it almost daily! I love the feel of this screen and it has lasted all semester long. It was a little tricky getting the screen on just right, and I had to use both because the first time I had a bunch of air bubbles, but the second time was perfect! I think you would probably want to get a new screen every year to ensure it still has that paper-like feel, but I think that’s totally reasonable!
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Reviewed in the United States on April 24, 2026

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