Using the Classroom A/V Racks

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The video above will walk you through how to operate the classroom A/V racks used for teaching in E58, E59, E61, E65.

The main components of the classroom racks are: a Denon receiver, an Oppo Blu-ray player, an Apple TV, and a Mac Mini that allows you to use a computer without having to bring a laptop.

Turning on the Receiver

This is the Denon receiver. The receiver is used to select your source which then pushes out the audio and video signals to the projector and speakers for display in the classroom. Turn it on by pressing the small circular button on the left side.

To determine what comes through the projector (i.e., your source), select from one of the quick select buttons, labeled in yellow:

a. Mac Mini

b. Blu-ray/DVD

c. HDMI (a laptop connection)

b. Apple TV

You may also select your source by turning the “Source” dial on the left.

Additional Inputs:

There is an Auxiliary audio port on the front of all the racks which allows you to connect a mini stereo plug from your iPhone or iPad.

Controlling the Volume

The volume dial on the right adjusts your audio level. Start with the main volume level being somewhere between 20 and 40 so as not to blow out the speakers before you play audio through them. When the dial is at zero, nothing can be heard.

Turning Off the Receiver

1. To turn off the receiver, press the small button on the left and leave it.

2. You will notice a label that says “Please do not touch these four buttons!” These are control zones: the Main Zone should be on, and Zone Two to be off – the screen above will tell you whether the Main Zone or Zone Two is on or off.

These Zone Control buttons should not be touched, but if you’re not able to get a signal out of the receiver, check to make sure that Zone Two is off.

Connecting a Laptop

1. Using the source buttons (underneath yellow labels), select “HDMI In.”

2. Find the HDMI cable located either on top of or on the side of the unit.

3. Plug one side of the HDMI cable into the “HDMI In” port. Plug the other side of the cable either straight into your laptop, or do so via the appropriate adapter (located in one of the shelves at the bottom of the unit).

Most laptops today do not have an HDMI port, so you will likely need to use the white USB-C adapter, or an older compatible adapter, both of which are provided.

4. Many long HDMI cables are directional, meaning that it matters which side of the cable plugs in where: One side of the cable will say “Source” and the other side will say “Display/ TV”. The “Source” is your computer, and the “Display/TV” connects to the receiver (which then connects to the Projector).

Additional Outlets and Accessories

1. You can use these power outlets to plug in and charge your laptop.

2. And the drawers below can be used to set your laptop on.

3. Inside the drawer you can also find a wireless keyboard and wireless mouse for the Mac Mini. Each device has an On and Off button: if the light at the top right corner of the keyboard is off, the device is off and needs to be turned on (or charged).

When you are finished using the keyboard and/or mouse, please plug them in to charge inside the drawer.

Inside the drawer you can also find remotes for the system:

  • Blu-ray remote
  • Projector remote
  • Receiver remote

Turning on the Projector

  1. To turn on the system, press the Power Button on the Projector remote once.

2. The projector lamp should turn on within 15 seconds.

3. If projector detects an input from the receiver, the receiver signal will show up on the projector screen.

The Input should be on HDBaseT. HDBaseT is the only signal in these rooms.

4. If the Receiver is set to Mac Mini, an Apple login screen will appear. You can log in with your Film/Video credentials using the wireless keyboard and mouse. You can then use the Mac Mini like any lab computer to play audio and video files.

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