Ask Proxima C445 Users Guide

10
Adjusting the imageAdjust the height of the projector, if necessary, by pressing the release but-
tons on each side of the projector ’s front to extend the elevator feet. 
Position the projector the desired distance from the screen at a 90 degree 
angle (perpendicular) to the screen. 
See page 37 for a table listing screen sizes and distances.
Adjust the zoom or focus by rotating the Zoom or Focus rings inside the 
lens door until the desired image size and focus are produced.
If the image is not on...

11
Connecting a video device Standard video connectionsPlug the audio/video (A/V) cable’s yellow connector into the video-out 
connector on the video device. Plug the other yellow connector into the yel-
low Video 3 connector on the projector. Plug a white connector into the left 
audio out connector on the video device and plug a red connector into the 
right audio out connector on the video device. Plug the remaining white 
connector into the left audio in connector on the projector, and plug the red...

12
Displaying a video imageRemove the lens cap. 
Press the power switch on the back of the projector to the on (I) position. 
The Power light on the Status Indicator Panel (page 14) lights green.
Press the Pow e r button on the top of the projector or the remote.
The Power light blinks green and the fans start to run. When the lamp 
comes on, the startup screen is displayed and the light is steady green. It can 
take a minute for the image to achieve full brightness. 
? No startup screen? Get help on...

13
Adjust the zoom or focus by rotating the Zoom or Focus rings inside the 
lens door until the desired image size and focus are produced.
If the image is not on the screen or viewing area, adjust it by using the lens 
shift dials inside the lens door. 
Use the right dial to shift the lens left or right. Use the left dial to shift the 
lens up or down.
Adjust the volume in the Audio menu.
Adjust the Contrast, Brightness, Color, or Tint in the Picture menu. 
See page 25 for help with the menus.
adjust...

14
Shutting down the projectorThe projector automatically blanks the screen after no active source is 
detected for 5 minutes. This blank screen helps preserve the life of the pro-
jector. The image returns when an active source is detected or a remote or 
keypad button is pressed.
Screen Save
You can make the blank screen appear after five minutes by turning on 
Screen Save in the Settings>System menu. See page 30.
Pow e r  S av e
The projector also has a Power Save feature that automatically turns the...

15
Problem Solution Result
No startup screenPlug power cable in, press power switch and 
power button. Remove lens cap.
Correct image
Only startup screen appears
Press the Source button 
Activate laptop’s external portComputer image projected
1
2
3
startup
screen
A
startup
screen
or restart
laptop
A
A
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16
No computer image, just the words “Signal out of 
range” Adjust computer refresh rate in Control 
Panel>Display>Settings>Advanced>
Adapter (location varies by operating 
system)Computer image projected
Image fuzzy or cropped Set your computer’s display resolution to 
the native resolution of the projector 
(Start>Settings>Control 
Panel>Display>Settings tab, 
select1024x768) Image clear and not cropped
A
Signal out of
range
You may also need to set a different 
resolution on your computer, as shown
in...

17
Projector troubleshooting
Problem Solution Result
Image not square Adjust keystone the Picture menuSquare image
Image not sharpAdjust the focus ring or Sharpness in the 
Picture>Advanced menuCorrect image
Image does not fit 16:9 screenChange aspect ratio to 16:9 in 
Picture>Aspect ratio menuCorrect image
ABAB
AB
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18
Image upside downTurn on/off Ceiling in Settings>System 
menuCorrect image
Image reversed left to right
Turn on/off Rear in Settings>System menu
Correct image 
Projected colors don’t match source
Adjust color, tint, color temperature, 
brightness, contrast in the menusCorrect image
A
B
AB
A
AB
COLOR
COLOR
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19
Lamp won’t turn on, Temp light is lit (page 14)Make sure vents aren’t blocked; allow 
projector to cool for one minute Unplug projector; wait one minute; plug in 
projector and turn it on: lamp lights
Lamp won’t turn on, Lamp light is lit (page 14)Lamp may need to be replaced (page 34)
Lamp turns on
Temperature light
 
startup
screen
Lamp light
startup
screen
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