InFocus C170 User Manual

ASK Proxima C170 Projector Frequently Asked Questions: Computer

How do I connect a desktop computer to the projector?

To connect the projector to a desktop computer, you probably need to unplug the desktop monitor from the computer.

Plug the M1 computer cable into the projector's M1-DA port and the computer's monitor port. If you want to use your monitor in addition to the projector, connect the monitor cable to to the Monitor Out port on the projector. Please note to use this port for external monitor output, the Monitor Out Enable feature must be checked in the Settings > Sources menu. By default, this port is set to be an input.

How do I connect a laptop to the projector?

To connect C170 to your laptop, use the M1 cable that comes with the projector. The M1 cable runs between the blue M1-DA port on the projector and the VESA connector on the laptop.

If you want to control the computer mouse with the remote, plug the USB connector on the M1 cable into the computer’s USB port. Don't forget to plug the power cord into the projector and a power source.

Note: If this is the first time you connect the USB cable to a computer, the Windows New Hardware Wizard will appear. You need to install USB drivers to use the remote control to mimic the computer mouse. See My computer wants to install device drivers when I connect the projector. What should I do? for more information.

How do I connect the projector in a country with different power standards? Does the projector have an internal voltage converter?

InFocus projectors have a built in Universal Power Supply which automatically accommodates input voltages between 100VAC and 240VAC and frequencies between 50 Hz and 60 Hz. This will allow you to use the projector in any part of the world. But you will need the correct power cable or adapter. Visit the InFocus Accessories Store to purchase power cables for use in other countries.

What resolutions is the projector capable of displaying?

VGA, SVGA, XGA (native), SXGA+. For best results, adjust your computer resolution to the native resolution of XGA (1024x768).

The projected image reverts to the InFocus logo or to a blank screen during periods of computer inactivity.

This may be caused by a power saving utility on the computer that disables the video output signal after a specified period of inactivity. Disable all power saving programs and screen savers on the computer to prevent signal interruption. Refer to the computer documentation to disable power saving utilities.

If you have disabled the computer power savers and screen savers, and the issue persists, it may be due to a setting in the projector. The projector automatically displays a black screen after no active source is detected for 30 minutes. This black screen helps preserve the life of the projector. The image returns when an active source is detected or a remote or keypad button is pressed.

Screen Save

You can make the black screen appear after five minutes by turning on Screen Save in the Settings > System menu. There are six time options for the Screen Save feature. They range from five minutes to 30 minutes in five-minute intervals.

Power Save

The projector also has a Power Save feature that automatically turns the lamp off after no signal is detected for 20 minutes. After 10 additional minutes with no signal, the projector powers down. If an active signal is received before the projector powers down, the image is displayed. You must press the Power button to display an image after 30 minutes have passed. When Power Save is enabled, Screen Save is disabled.

Power Save is not enabled by default. To turn it off or on, go to Main > Settings > System. In the System menu, clear the Power Save checkbox to turn it off, or select it to turn it on.

The image appears to be stretched vertically or horizontally.

The Aspect Ratio is set to 16:9 instead of Native or 4:3, which is required for computer images. To change the aspect ratio, press the Menu button on the keypad, then go to Main > Picture > Aspect Ratio. Select Native or 4:3.

The default setting is Native, which allows the projector to adjust to incoming signals automatically. Setting the aspect ratio at 4:3 or 16:9 forces all incoming images to that ratio.

I am playing a DVD on my laptop, but the projector displays a blank screen.

If the DVD plays satisfactorily on your laptop, you should be able watch it with the projector. However, some laptops do not have the resources to play the movie on both its own screen and through the projector. When this happens, you will probably just see a blank screen. To solve this issue, press and hold the FN key on the laptop, then press the appropriate function key (F1, F2, F3, etc.). The function key should be labeled “LCD/CRT” or will have a monitor icon on it. You may need to press the function key a couple times. When you do this, you cycle through three settings: the image only on the laptop, the image on both the laptop and projector, and the image only on the projector. You want to set it so the movie appears only on the screen.

The LED on the projector keypad has changed. No image is projected. The lamp doesn't light. What is wrong?

The projector has a status and alarm LED adjacent to the keypad. The LED shines green, red or orange, depending on the state of the projector. The LEDs can help you troubleshoot projector problems.

LED Behavior Description

Solid Green (Status LED)

Blinking Green (Status LED)

Solid Red (Alarm LED)

Blinks Red (1), every 2 seconds

Blinks Red (2), every 2 seconds

The projector is plugged in, but has not been turned on. Or the projector was turned on and is operating normally. Or the projector was turned off and the fans have stopped.

The power button was pressed and the projector is starting up. Or the projector is shutting down after the power button was pressed, and the fans are running to cool the lamp.

Operational error. Contact Technical Support for repair if this does not solve the problem.

The lamp did not strike after 5 attempts.

1. Turn the projector off.

2. Make sure that the lamp door is shut tightly.

3. If the lamp door is in place, replace the lamp.

4. If the projector still does not work, take the projector to your dealer for diagnosis and repair, or contact InFocus Technical Support.

The lamp has more than 4,000 hours of use (X1) or 3,000 hours of use (X2). Projector shuts down.

1. Replace the lamp.

2. Reset the lamp timer. To do this, press the Volume + and Volume - keys simultaneously. Hold the keys down for 10 seconds, then release them.

3. To confirm that the lamp timer reset, press the Menu key. On the Main Menu, select About. In the About box, the Lamp Hours Used should be 000.

Note: if you need to finish a presentation, you can reset the lamp timer and replace the lamp later. However, the longer the lamp is used after 4,000 hours, the more likely it is to rupture, possibly causing damage to the inside of the projector.

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