Blackmagic Design Spares - Power Module - Web Presenter 12VDC 30W

The Blackmagic Design Spares - Power Module - Web Presenter 12VDC 30W is the internal AC-to-DC switching power supply designed specifically for the Web Presenter series (including the Web Presenter HD and Web Presenter 4K). Because these units are often used for 24/7 live streaming, this power module is built for continuous operation and high thermal reliability.

Compact Power for Streaming

The Web Presenter is a 1/3 rack width device, meaning space inside the chassis is extremely limited. The 30W power module is a high-efficiency, "ultra-compact" open-frame supply.

• Voltage: 12V DC.

• Wattage: 30W (Perfectly balanced for the H.264/H.265 hardware encoders and the front panel monitoring LCD).

• Redundancy Support: The Web Presenter also features a 12V DC XLR input on the rear. This internal 30W module works in tandem with that input; if the AC module fails, the unit can seamlessly pull power from the DC input (if connected to a battery or external brick).

When to Replace this Module

This internal module is the primary component that deals with "wall power." It is the first line of defense against surges. You likely need a replacement if:

• Dead on AC: The unit works perfectly when powered via the 4-pin XLR DC input but is completely unresponsive when plugged into a standard IEC AC cable.

• Streaming Instability: The unit reboots the moment a stream is started. Hardware encoding draws more current; a "tired" power supply might handle the idle menu but fail under the load of an active stream.

• LCD Flickering: Significant "ripple" or noise from a failing capacitor in the module can cause the front panel display to flicker or show horizontal lines.

Key Features

• Genuine Spare: Built to match the specific low-noise requirements of broadcast video equipment.

• Universal AC Compatibility: Supports 100V–240V, making it a "world-ready" part.

• Direct-Fit Connectors: Features the specific wiring harness used to connect to the Web Presenter's Main PCB without soldering.

Technical Installation Note

Replacing the power module in a Web Presenter is a delicate process due to the tight internal layout.

• Safety Warning: Like all internal power units, the capacitors can hold high-voltage charges. Unplug the unit for 10 minutes before opening the chassis.

• Chassis Grounding: When installing the new module, ensure the mounting screws are tight. The PCB relies on the metal standoffs for grounding; a poor ground can introduce "hum" into the signal.

• Insulation: Ensure the plastic safety shield (if present) is positioned between the power module and the main logic board to prevent arcing.

• Airflow: Ensure no internal cables are resting directly on the module's heat sinks, as the Web Presenter relies on internal fans to pull heat away from these components.