AV Instructions: ETB 234: Difference between revisions
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* Desktop PC 2 (The secondary screen to the left on the Instructor's desk) | * Desktop PC 2 (The secondary screen to the left on the Instructor's desk) | ||
* Laptop PC (Input from the provided HDMI cable, see [[AV Instructions: ETB 234#Projecting From a Laptop|Projecting From a Laptop]]) | * Laptop PC (Input from the provided HDMI cable, see [[AV Instructions: ETB 234#Projecting From a Laptop|Projecting From a Laptop]]) | ||
The Hide/Show button beneath each column is used to individually turn on or off each projector. | |||
When finished with the AV system, please turn it off by using the "TURN SYSTEM OFF" button in the upper right corner of the control panel. This button needs to be held down for 2 seconds. On success, you will hear a beep and the screen will show a shutdown progress bar (example below): | |||
[[File:ETB-234 Control panel shutdown screen.png|805x805px]] | |||
==Projecting From the Desktop== | ==Projecting From the Desktop== | ||
Revision as of 16:19, 29 January 2026
Room overview
- The instructor area is the front right of the classroom (opposite corner to the doors)
- USB hubs are accessible on top of the AV equipment directly behind the instructors desk
- The projector controls are mounted on the wall adjacent to the instructors desk
- The cabinet and table in the adjacent corner are not used.
Room layout

USB ports behind instructors desk:
Projector Control Panel
The projector control panel is found on the wall to the left of the Instructor's desk. To begin, press the "Enter" button in the bottom right corner of the screen. The control panel touch screen is not very sensitive and you may need to press the button firmly.
Next, on the login screen, use the numpad to enter the access pin. Then, press the "SUBMIT" button at the bottom center of the screen. If you do not have the access pin send a request to btechts@mcmaster.ca
On successful login, the AV system will turn on. Visually you will see a progress bar appear on screen, followed by the controls screen shown below:
The control panel allows independently selecting which input is display to which screen. Reference room overview for projector location. There are 3 possible inputs to pick for each projector:
- Desktop PC 1 (The main monitor on the Instructor's desk)
- Desktop PC 2 (The secondary screen to the left on the Instructor's desk)
- Laptop PC (Input from the provided HDMI cable, see Projecting From a Laptop)
The Hide/Show button beneath each column is used to individually turn on or off each projector.
When finished with the AV system, please turn it off by using the "TURN SYSTEM OFF" button in the upper right corner of the control panel. This button needs to be held down for 2 seconds. On success, you will hear a beep and the screen will show a shutdown progress bar (example below):
Projecting From the Desktop
- Begin by logging into the Instructor Desktop computer
- Follow the instructions in Projector Control Panel to turn on the AV system
- By default the main (righthand side) monitor will be projected to the screens. The Control panel can be used to switch one or both of the screens to display the content of the instructor's secondary monitor (Desktop 2 on the control panel)
- USB drives may be connected to the Desktop computer via the docking stations which are situated on top of the AV equipment box directly behind the instructors desk. Reference room overview for an image highlighting their location.
- The desktop is already connected to class room speakers
Projecting From a Laptop
General guidelines:
Important - On the instructor podium, the USB 2.0 needs to be used on the black and beige adaptor while USB3 will be used on the black box adapter.

1. The instructor area is the front right of the classroom (opposite corner to the doors) - the cabinet and table in the adjacent corner are not used.
2. This room currently has limited sound capabilities - you may need to bring your own speaker.
3. Please return the provided HDMI and audio cables neatly to the desk (do NOT let it drop to the floor).
4. The remote works for both of the projectors - you need to point the remote directly at the projector of interest (you may need to walk to the center of the room).
5. Please bring your own adapter if your device does not have an HDMI output port.
6. Left-click and right-click refer to the default right-handed mouse configuration - reverse them if applicable.
7. The wall-embedded touchscreen is not very sensitive, so you may need to firmly and/or repeatedly press for the desired outcome.
Using provided computer, if you do not see any image on the screen:
1. Ensure you are logged in
2. Ensure the projector is on
a. Use the touchscreen to turn on the projector
b. Use the remote to manually turn on/off the projector (The remote works for both of the projectors, so you need to point the remote directly at the projector of interest - you may need to walk to the centre of the room)
3. Ensure that the projector is selecting the correct input
a. Use the touchscreen to change the monitor that the projector is copying - choose Desktop PC 1
b. Use the remote to select input 5 (DIGITAL LINK)
4. Ensure the computer is outputting its image properly
a. Press the Windows key and P at the same time
b. Select Second screen only
c. Repeat 3a, and 3b as necessary
Using the provided computer, if you do not hear any sound:
5. Ensure the computer's sound is on and turned up, and selected properly
a. Left-click the speaker icon in your taskbar, press/hold the right-arrow key on the keyboard until loud enough
b. If there is no sound and/or a red circle with an X, right-click the speaker icon, left-click Sounds, left click Playback, right click the Speakers option (Realtek High Definition Audio - NOT USB Codec or NVIDIA High Definition Audio), and left-click Enable
c. On the same menu as 5b, left-click Set as Default Device, test by repeating 5a
Using your own computer, if you do not see any image on the screen:
6. Ensure your device is properly plugged in
a. Ensure the cable and adapter (if applicable) is(/are) properly plugged in - remove and replug (ensure correct orientation)
7. Ensure the projector is selecting the correct input
a. Refer to 3a (choose Laptop, instead of Desktop PC 1 or Desktop PC 2)
b. Refer to 3b as necessary
Using your own computer, if you do not hear any sound:
7. Ensure your computer's sound is on and turned up
a. Refer to 5a, 5b (change the audio output option as necessary), and 5c
8. Bring your own speakers, and ensure they are working properly
a. Ensure your speakers are properly powered and connected to your computer (this varies according to your speakers)
b. Repeat 5a, 5b, and 5c as necessary








