# How to Use the Auditorium (IAC) AV Switcher

[![](https://kb.wrc.vic.edu.au/uploads/images/gallery/2025-09/scaled-1680-/Ez1HOmfDGXz6mnCq-image-1757476411519.png)](https://kb.wrc.vic.edu.au/uploads/images/gallery/2025-09/Ez1HOmfDGXz6mnCq-image-1757476411519.png)

This guide explains how to connect laptops and the AV room desktop to the Auditorium AV system using the **IAC AV switcher**.  

> **Important:**  
> - The **top row** of buttons contains **outputs**.  
> - The **bottom row** of buttons contains **inputs**.  
> - **Do not touch any equipment below the AV switcher** unless you have consulted IT first.

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## **Connecting a Laptop 💻**

Laptop HDMI ports are available around the Auditorium:  
- One on either side of the stage  
- Atop the stairs below the AV room window  
- Inside the AV room  

### Steps:
1. On the **input row (bottom row)** of the AV switcher:  
   - Select your **HDMI port number** on the left side while **Video** is selected on the right side.  
   - Select the same **HDMI port number** on the left side while **D-Audio** is selected on the right side.  

> **Tip:** Make sure your laptop is powered on and connected to the correct HDMI port before selecting inputs.

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## **Connecting the AV Room Desktop 🖥️**

If using the **desktop computer in the AV room**, on the **input row (bottom)**:  
- Select **Number 1** on the left side while **Video** is selected on the right side.  
- Select **Number 1** on the left side while **D-Audio** is selected on the right side.  

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## **Sending Output to the Projector 📽️**

1. On the **output row (top)** of the AV switcher:  
   - Select **Number 1** on the left side while **Video** is selected on the right side.  
   - Select **Number 1** on the left side while **D-Audio** is selected on the right side.  
2. Ensure the **projector is powered on** using the remote.  

> **Note:** There should be no need to press any other buttons on the projector remote. All AV functionality is controlled via the AV switcher.

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## **Mirroring Your Laptop to the Desktop 💻 → 🖥️**

1. On the **output row (top)** of the AV switcher:  
   - Select **Number 2** on the left side while **Video** is selected on the right side.  

> This allows your laptop screen to display on the AV room desktop.

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> **Reminder:** If you encounter any issues, contact the IT department before adjusting any equipment below the AV switcher.