SKU: 95629484595

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

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Description

Blackmagic Design Spares - ATEM 4M/E BCast Studio 4K - PCB MezzThe Blackmagic Design Spares ATEM 4 M E Broadcast Studio 4K Mezzanine PCB is a specialized high density interface board for the "top of the line" 2RU rack mount switcher. Because this switcher handles 20 inputs of 12G SDI and supports frame rates up to 2160p60, the data throughput is too massive for a single circuit board. The Mezzanine board acts as the "Input Output Engine," sitting directly atop the Main PCB to handle the physical physical signal

The Blackmagic Design Spares - ATEM 4 M/E Broadcast Studio 4K - Mezzanine PCB is a specialized high-density interface board for the "top-of-the-line" 2RU rack-mount switcher.

Because this switcher handles 20 inputs of 12G-SDI and supports frame rates up to 2160p60, the data throughput is too massive for a single circuit board. The Mezzanine board acts as the "Input/Output Engine," sitting directly atop the Main PCB to handle the physical physical signal conditioning for the massive array of BNC ports.


Core Responsibilities

  • 12G-SDI Bank Management: Specifically handles the 20 inputs and the multiple Program/Aux outputs. Each port has dedicated 12G-SDI re-clocking to ensure signal integrity over long cable runs.

  • Standards Conversion: In the Broadcast Studio 4K model, the Mezzanine board contains the hardware that allows every single input to have its own standards converter. This allows you to plug in a mix of HD, Ultra HD, and different frame rates simultaneously.

  • Signal "Sandwich" Interconnect: It passes processed video data down to the Main PCB (where the 4 M/E rows and 16 Keyers are calculated) via high-speed, multi-pin board-to-board connectors.


When to Replace the Mezzanine PCB

On this professional-grade unit, the Mezzanine board is often the part that "takes the bullet" for the rest of the system during electrical mishaps.

  • Bank Failure: If a group of inputs (e.g., Inputs 1–10) suddenly goes black while the rest of the switcher functions, a localized power regulator or controller chip on the Mezzanine board has likely failed.

  • Sync/Conversion Errors: The switcher connects to the computer and shows the Multiview, but the inputs show "Unsupported Format" or glitchy video despite the "Standards Conversion" being turned on.

  • BNC Physical Damage: With 20 inputs and over 10 outputs, the BNC connectors are under immense stress in mobile fly-packs. If a connector is sheared off or the internal pin is pushed in, the Mezzanine board is the part that must be replaced.

  • Heat-Related Artifacts: If the video shows "sparkles" or digital noise that only appears after the unit has been on for 30 minutes, the 12G-SDI processing chips on this board are likely overheating or failing.


Technical Installation Note

Repair Level: 5 (Expert). This is a high-risk repair due to the density of the components.

  1. Massive Port Disassembly: You must remove the hex nuts and washers from all 30+ BNC connectors on the rear of the unit. Using a power driver is discouraged as it is very easy to strip the threads or slip and gouge the PCB.

  2. The "Lifting" Danger: The board is connected to the Main PCB by several high-density "mating" connectors. You must lift the board perfectly level. If you tilt the board while lifting, you will bend the pins on the Main PCB, which usually results in needing to replace both boards.

  3. Thermal Pad Criticality: This board generates an immense amount of heat. You must replace all thermal pads (often 10 or more) that sit between the Mezzanine chips and the internal heatsinks. Reusing old, compressed pads will lead to a "thermal runaway" failure of the new board.

  4. Weight & Alignment: The board is heavy and large. When reinstalling, ensure all 30+ BNC ports align with the chassis holes before pressing down on the interconnect pins.


Diagnostic: Mezzanine vs. Main

  • It is the Mezzanine Board if: The ATEM Software Control works, the Multiview UI is visible, but all or most of the SDI Inputs are dead.

  • It is the Main Board if: The unit won't boot, won't connect via Ethernet, or the 4 M/E effects (like the DVEs) are crashing the system.

Expert Advice: Because the ATEM 4 M/E Broadcast Studio 4K is a flagship unit, it is highly sensitive to static. If you are replacing the Mezzanine board, ensure you are working in a climate-controlled, ESD-safe environment. A single static pop to one of the 12G-SDI pins during installation can permanently damage the new board.

Are you losing a specific group of inputs, or is the entire SDI I/O bank unresponsive?

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SKU: 95629484595

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★★★★★ 5
Good start to a series
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I delayed reading the series for reasons I don’t remember. But my TBR list is huge so I thought I’d take a shot of this and I was pleasantly surprised. I didn’t think the blurb about it was anything special. But it was a very good book. It took some interesting twists and turns. I am so glad the second book is already out. Because I would not have waited patiently. Very slow burn but good storyline. 🔥🔥/5
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Jammie Clark
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★★★★★ 4
A good read
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Multiple points of view. 3 Alpha men and an Omega male. She is a Beta in training for a new program placing betas in Alpha/Omega packs. Mila is only doing the program for the money to take care of her dad. She wasn't expecting to fall for a pack but when she sees this packs Omega she is done for. There is just something about him. His Alphas are good looking as well. Too bad she is hiding a secret and their government is acting shady. I liked it and can't wait to see where their story goes.
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Bri Hires
Cuba, US
★★★★★ 3
Slightly repetitive but I did love some things
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I love this type of story. And omegaverse is one of my all time favorite genres. But there are a few things that pulled me out of my enjoyment while I was reading. It was repetitive at times as well as struggled with telling not showing. So we didn’t always feel like we were experiencing things with the main character. There were also some plot holes but they may still be answered in part 2. Now this isn’t to be said I didn’t enjoy parts of the story. I loved the almost instant love between Mila and Oliver. And how he started changing around her.
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Kimberly G
Boise, US
★★★★★ 5
delightful read
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What a delightful read. The characters are awesome, the plot was so good, I loved it. I was intrigued and it kept me wanting more. Told in multiple pov, the book sucks you in and doesn’t let go. I cannot wait to read the next book.
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Kimberly B
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★★★★★ 4
not bad
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I loved the plot of this book. The characters just didn’t have a lot of depth. The connections and “love” just weren’t communicated very well in the writing. The author didn’t write the sweet psycho trope very well at all either. Lachlan was just a mess of a character.
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