Using the Philips ProScreen 4750 Data/Video Projector

Getting Started

Connecting power and video cables

Plug the black power cord into the matching socket in the back of the projector. Plug the other end of the power cord into the wall.

Connect the black & blue VGA (video) cable to the VGA output port on the back of the computer. Connect the other end of the VGA cable to the port on the projector, labeled Data In, located in the Data 1 section.

 Powering on the projector

Computer should be OFF.Turn the projector ON via the black (I/O) switch on the side of the unit. A red Standby light on top of projector will turn on.

Hold down the ON/OFF STANDBY button on top of the projector for two seconds. A blue screen should be projected after the lamp warms up. This may take a minute or so.

Select the DATA 1 input on the top panel.

Turn computer ON. A message may appear: No input signal detected... until the computer's login screen appears. When the computer's login screen appears, enter the correct username and password. (If borrowing a laptop from the Kenyon Library, enter username and password according to the directions in the Read This Before Using... sheet enclosed in the laptop carrying case).

Configuring the computer to connect to the projector

For Macintosh users:

Click on the Apple icon in the upper left corner of the screen. In the menu that appears, click on the System Preferences item.

In System Preferences, under the Hardware section, click on the Displays icon:

A window labeled Color LCD will open, containing the builtin-in display settings.

If you want to change the size of the image displayed on the projector screen, you can lower the resolution. To do this (from the Color LCD window), click on the Display tab. In the Resolutions box, click on the resolution desired (note: 1152 x 768 is the default, lower resolutions like 800 x 600 display larger -- grayed-out resolutions cannot be selected).

If you still cannot get an image to display on the screen, you can try lowering the refresh rate to 60 Hz, accessed through the Display tab (above).

In the Mac's Menu bar, click on System Preferences and then Quit System Preferences.

Open the application containing your presentation.

For Windows users: (Windows 2000 laptops and newer):

As you start up the computer, a message window may appear on the desktop, stating that the system has detected new hardware and asking if you want it to find a newer driver. Just cancel out of this. Once started up, the desktop image should now automatically display on both the laptop screen and the projection screen.

If the image appears only on the laptop screen but not the projection screen, you may have to press certain function (F) keys to set the laptop to display the image on both. On Dell laptops press and hold (for 2-3 seconds) the Fn key (on bottom of keyboard) together with the F8 key (on top) one time. If the image doesn't display on both screens, press this key combination a second time. If it still doesn't display, press a third time. Toggling through these three sequences should eventually get both screens to display the image.

If the laptop's image still won't appear on both the laptop and projector screen, try lowering the laptop's resolution: Via the Start menu, find the Control Panel. Double-click the Display icon, then click the Settings tab. Set the laptop's resolution to 800x600. Press the Apply button both times to make the changes. The laptop image should now appear on the projector screen.

Open the application containing your presentation.

Note: The display on the laptop screen may appear smaller (i.e., a black border around the dekstop), when it is necessary to bump down the laptop's resolution so that the video card can handle showing the image on both the laptop and the projector at the same time.

Adjusting the display

Image height:

To raise the image to a different height, adjust the height of the front leg. Press down on the release tab to the lower left of the lens while tilting the projector to the desired height. The front leg should then drop down.


If the image is too small or large, adjust this using the Zoom collar on the lens, which is the one closest to the body of the projector.


If the image is out-of-focus, adjust this using the Focus collar on the lens, which is the bigger one at the tip of the lens.


On this projector, if the image is not a perfect rectangle, there is no way to adjust the keystone. If the distorted image caused by raising the front leg is a problem, consider instead placing the entire unit on something higher.

When finished, close the application and shut down the laptop.

Powering off the projector

Hold down the ON/OFF STANDBY button for two seconds. After a few more seconds the screen will go black, but the fan will still be running.

DO NOT UNPLUG OR TURN OFF THE PROJECTOR until the fan stops running. The bulb will be damaged if it is not given adequate time to cool down.

Once the fan stops running, turn power I/O) switch in back of unit to OFF and unplug the projector.