1. Introduction
The SEETEC ATEM173S is a 17.3-inch Full HD broadcast monitor designed for multi-camera production environments. It features a 1920x1080 resolution display, 4x 3G-SDI inputs and outputs, and 1x HDMI input. The monitor supports various professional features including 3D-LUT, HDR monitoring, waveform, vectorscope, and histogram. Its robust aluminum housing and versatile mounting options make it suitable for live production, broadcast, and post-production applications.
2. Safety Information
Please read and understand all safety instructions before operating this device. Retain this manual for future reference.
- Power Source: Use only the specified power adapter (DC 12V/2A~3A) or compatible V-mount battery.
- Environment: Avoid exposing the monitor to rain, moisture, direct sunlight, or extreme temperatures. Ensure adequate ventilation.
- Handling: Handle the monitor with care to prevent physical damage. Do not block ventilation openings.
- Cleaning: Disconnect power before cleaning. Use a soft, dry cloth. Do not use liquid or aerosol cleaners.
- Servicing: Do not attempt to service this product yourself. Refer all servicing to qualified personnel.
3. Package Contents
Verify that all items are present in the package:
- 1 × SEETEC ATEM173S Monitor
- 1 × Power Adapter
- 1 × SDI Cable
- 1 × Mini HDMI Cable
- 1 × V-mount Battery Plate
- 1 × Sunshade
- 1 × U-shape Bracket
- 1 × User Manual
4. Product Overview
4.1 Front Panel Controls
The front panel provides access to essential controls and indicators.

Image 4.1.1: Front view of the SEETEC ATEM173S monitor, showing its 17.3-inch screen in a quad-view configuration, displaying four distinct video feeds. Control buttons and knobs are visible below the screen.

Image 4.1.2: Detailed view of the monitor's front control panel, highlighting buttons for SDI inputs (SDI 1-4), HDMI input, function keys (F1-F4), display mode, backlight, contrast, brightness, volume, and power switch.
4.2 Rear Panel Connections
The rear panel houses all input, output, and control ports.

Image 4.2.1: Rear panel of the SEETEC ATEM173S monitor, illustrating the 4x 3G-SDI input and output ports, HDMI input, USB port for upgrades/LUTs, RS485, GPI control interface, and DC 12V power input.

Image 4.2.2: Detailed view of the monitor's rear connectivity, showing the arrangement of SDI, HDMI, USB, RS485, and GPI ports, along with the DC 12V power input.
4.3 Power Options
The monitor supports flexible power solutions.

Image 4.3.1: Rear view of the monitor demonstrating power options, including the V-mount battery plate for portable power and the XLR connector for DC 12V input.
5. Setup
5.1 Mounting the Monitor
The ATEM173S can be mounted using the included U-shape bracket or a VESA-compatible mount.
- U-shape Bracket: Attach the U-shape bracket to the sides of the monitor using the provided screws. This allows for desktop placement or stand mounting.
- VESA Mount: The monitor supports VESA standard mounting for wall or arm installations. Ensure the mount can support the monitor's weight.
5.2 Connecting Power
Connect the monitor to a power source using one of the following methods:
- AC Power: Connect the included power adapter to the DC 12V input port on the rear panel and plug it into a wall outlet.
- V-mount Battery: Attach a compatible V-mount battery to the V-mount battery plate on the rear of the monitor.
5.3 Video Input Connections
The monitor supports both SDI and HDMI video inputs.
- SDI Input: Connect up to four 3G-SDI sources to the SDI IN 1-4 ports using SDI cables.
- HDMI Input: Connect an HDMI source to the HDMI IN port using an HDMI cable.
5.4 GPI Control Connection
For external control, connect a GPI device to the GPI port on the rear panel. Refer to the GPI pinout diagram on the monitor for correct wiring.
6. Operating Instructions
6.1 Powering On/Off
Press the power button on the front panel to turn the monitor on or off.
6.2 Input Selection
Use the dedicated SDI 1-4 and HDMI buttons on the front panel to switch between video inputs.
6.3 On-Screen Display (OSD) Menu
Access the OSD menu to configure monitor settings.

Image 6.3.1: The monitor's OSD menu, showing options such as Assist, Marker, Waves, Image, Windows, External, Shortcut, Color, and System, with sub-options like Language, Transparency, OSD Duration, Volume, Mute, Reset, and Firmware version.
- Press the Menu/Enter button to open the OSD menu.
- Use the navigation buttons (up/down/left/right) to browse menu options.
- Press Menu/Enter to select an option or confirm a setting.
- Press the Exit button to close the menu.
6.4 Display Modes
The monitor supports various display configurations for multi-source monitoring.

Image 6.4.1: Examples of the monitor's display capabilities, including a comparison of video with and without 3D LUT applied, and demonstrations of Quad (4P) and Picture-in-Picture (2P PIP) display modes.
- Full Screen: Displays a single input across the entire screen.
- Picture-in-Picture (PIP): Displays one input as a main image and another as a smaller overlay.
- Quad View: Displays up to four inputs simultaneously in a grid layout.
6.5 Video Assist Features
The ATEM173S includes professional tools for accurate video monitoring.

Image 6.5.1: A visual representation of the monitor's video assist functions, including 3D LUT, Waveform, Vectorscope, Histogram, Time Code, Nine Grid, Pixel-to-Pixel, Picture-in-Picture, False Colors, Anamorphic Mode, Image Freeze, Screen Marker, Center Marker, and Embedded Audio.

Image 6.5.2: The monitor displaying embedded audio level meters, providing a visual representation of audio input levels.
- 3D-LUT: Supports loading up to 36 custom 3D LUTs via USB for accurate color representation.
- HDR Monitoring: Provides high dynamic range monitoring for enhanced detail in highlights and shadows.
- Waveform, Vectorscope, Histogram: Tools for analyzing video signal levels, color saturation, and luminance distribution.
- Focus Assist: Highlights in-focus areas (Yellow, Red, Green, Blue, White options).
- Zebra: Indicates overexposed areas (adjustable IRE levels).
- False Color: Displays exposure levels using a spectrum of colors.
- Markers: Includes Safety Marker (70%, 80%, 90%, various aspect ratios), Center Marker, and Marker Mat.
- Anamorphic Mode: De-squeezes anamorphic footage (1.25X, 1.33X, 1.5X, 2.0X, 2.0X mag).
- Zoom: Magnifies a portion of the image (4X, 9X, 16X).
- Pixel to Pixel: Displays the image at its native resolution without scaling.
- Audio Meter: Displays embedded audio levels.
6.6 Gynamic UMD
The monitor supports UMD (Under Monitor Display) using TSL 3.1/4.0 protocol.
- Select TSL address from 0-126.
- Displays up to 16 characters.
- UMD inputs via RS485 port and outputs via RS485 port.
6.7 Tally Lights
GPI controls Red Tally (recording) and Green Tally (standby) to indicate camera status.
7. Maintenance
7.1 Cleaning the Screen
Gently wipe the screen with a soft, lint-free cloth. For stubborn marks, slightly dampen the cloth with water or a screen-specific cleaning solution. Do not spray liquids directly onto the screen.
7.2 Cleaning the Casing
Use a soft, dry cloth to clean the monitor's casing. Avoid abrasive materials or harsh chemicals.
7.3 Storage
When not in use for extended periods, store the monitor in a cool, dry place, away from direct sunlight and dust. Consider using the sunshade or a protective cover.

Image 7.3.1: The monitor shown with its sunshade attached, which helps reduce glare and protect the screen during storage or transport.
8. Troubleshooting
If you encounter issues with your ATEM173S monitor, refer to the following common problems and solutions:
- No Power:
- Ensure the power adapter is securely connected to both the monitor and a working power outlet.
- If using a V-mount battery, check that it is properly attached and charged.
- No Video Signal:
- Verify that the video source (camera, switcher) is powered on and outputting a signal.
- Check that the SDI or HDMI cable is securely connected to both the source and the monitor.
- Ensure the correct input source is selected on the monitor (SDI 1-4 or HDMI).
- Confirm that the video format from the source is supported by the monitor (refer to specifications).
- Image is Distorted or Incorrect Colors:
- Check video cable connections for damage or loose fit.
- Reset monitor settings to factory defaults via the OSD menu.
- Ensure no video assist features (e.g., False Color, Monochrome) are inadvertently activated.
- OSD Menu Not Responding:
- Try pressing the Exit button to clear any active sub-menus.
- Power cycle the monitor (turn off, then on again).
9. Specifications
| Feature | Specification |
|---|---|
| Screen Size | 17.3 Inches |
| Resolution | 1920 x 1080 (Full HD) |
| Aspect Ratio | 16:9 |
| Brightness | 300 cd/m² |
| Contrast Ratio | 700:1 |
| Viewing Angle | 178° |
| Color Depth | 8 Bit (16.7M Colors) |
| Video Inputs | 4x 3G-SDI, 1x HDMI |
| Video Outputs | 4x 3G-SDI |
| Control Interfaces | RS485, GPI, USB (for LUT/Firmware) |
| Power Input | DC 12V (XLR), V-mount Battery Plate |
| SDI Support Format | 720p (60/59.94/50/30/29/25/24/23.98), 1080i (60/59.94/50), 1080p (60/59.94/50/30/29.97/25/24/24sF/23.98/23.98sF), 2048x1080i (60/59.94/50), 2048x1080p (60/59.94/50/30/29.97/25/24/23.98) |
| HDMI Support Format | 480i/576i/480p/576p, 720p (60/59.94/50/30/29.97/25/24/23.98), 1080i (60/59.94/50), 1080p (60/59.94/50/30/29.97/25/24/23.98) |
| Item Weight | 10.73 pounds |
| Package Dimensions | 21 x 16.2 x 6.15 inches |
10. Warranty and Support
SEETEC products are designed for reliability and performance. For warranty information, please refer to the warranty card included with your product or visit the official SEETEC website. For technical support, product inquiries, or service requests, please contact SEETEC customer service through their official channels.