Dell Projector 7700 User Manual

Troubleshooting Your Projector101
4
Troubleshooting Your Projector
If you experience problems with your projector, see the following troubleshooting 
tips. If the problem persists, contact Dell™ (see Contacting Dell™ on page 115).
Problem Possible Solution
No image appears on the 
screen
• Ensure that the lens cap is removed and the 
projector is turned on. 
• Ensure that you have chosen the correct 
input source on the INPUT SOURCE menu.
• Ensure the external graphics port is enabled. 
If you are using...

102Troubleshooting Your Projector
Partial, scrolling, or 
incorrectly displayed image1Press the Auto Adjust button on the remote 
control or the control panel.
2If you are using a Dell™ portable computer, 
set the resolution of the computer to Full 
HD (1920 x 1080): 
aRight-click the unused portion of your 
Microsoft® Win do ws® desktop, click 
Properties, and then select Settings tab.
bVerify that the setting is 1920 x 1080 pixels 
for the external monitor port.
cPress  (Fn+F8). 
If you experience...

Troubleshooting Your Projector103
Image is out of focus1Adjust the focus ring on the projector lens.
2Ensure that the projection screen is within 
the required distance from the projector 
(3.28 ft [1.0 m] to 39.37 ft [12.0 m]).
The image is stretched when 
displaying a 16:9 DVDThe projector automatically detects the input 
signal format. It will maintain the aspect ratio 
of the projected image according to input 
signal format with an Original setting. 
If the image is still stretched, adjust the...

104Troubleshooting Your Projector
TEMP light is solid amber  The projector has overheated. The display 
automatically shuts down. Turn the display on 
again after the projector cools down. If the 
problem persists, contact Dell™.
TEMP light is blinking amber If the projector fan fails, the projector will 
automatically shut down. Try to clear the 
projector mode by pressing and holding the 
Po w e r button for 10 seconds. Please wait for 
about 5 minutes and try to power up again. If 
the problem...

Troubleshooting Your Projector105
Guiding Signals
Projector Status DescriptionControl Buttons Indicator
Po w e rTEMP
(Amber)LAMP 
(Amber)
Standby mode Projector in Standby mode. Ready to power 
on.BLUE
FlashingOFF OFF
Wa r m i n g  u p  
modeProjector takes some time to warm up and 
power on.BLUE OFF OFF
Lamp on Projector in Normal mode, ready to display 
an image.
 Note: The OSD menu is not accessed.BLUE OFF OFF
Cooling mode Projector is cooling to shutdown. BLUE OFF OFF
Cooling before 
Pow e r Savi ng...

106Troubleshooting Your Projector
Changing the Lamp
 CAUTION: Before you begin any of the procedures in this section, follow the 
Safety Instructions as described on page 8.
Replace the lamp when the message Lamp is approaching the end of its useful 
life in the operation. Replacement suggested! www.dell.com/lamps appears 
on the screen. If this problem persists after replacing the lamp, contact Dell™. For 
more information, see Contacting Dell™on page 115.
 
CAUTION: Use an original lamp to ensure safe...

Troubleshooting Your Projector107
Advanced Setting menu on page 51). When a new lamp module has been 
changed, the projector will automatically detect and reset the lamp hours.
 CAUTION: Lamp Disposal (for the US only)
 LAMP(S) INSIDE THIS PRODUCT CONTAIN MERCURY AND MUST BE 
RECYCLED OR DISPOSED OF ACCORDING TO LOCAL, STATE, OR FEDERAL 
LAWS. FOR MORE INFORMATION, GO TO WWW.DELL.COM/HG OR CONTACT 
THE ELECTRONIC INDUSTRIES ALLIANCE AT WWW.EIAE.ORG. FOR 
LAMP-SPECIFIC DISPOSAL INFORMATION, CHECK...

108Specifications
5
Specifications
Light Valve 0.95 1080p DMD, DarkChip2™
Brightness 5000 ANSI Lumens (Max.)
Contrast Ratio 2500:1 (Natural)
10000:1 (Dynamic)
20000:1 (Static)
Uniformity 85% Typical (Japan Standard - JBMA)
Number of Pixels 1920 x 1080 (1080p)
Aspect Ratio 16:9
Displayable Color 1.07 billion colors (with Dithering)
Color Wheel Speed 2X
Projection Lens F-Stop: F/ 2.6~2.9
Focal length, f=39.12~46.94 mm
1.2X manual Zoom Lens
Throw ratio =1.85~2.22 wide and tele
Offset ratio: 115 ± 5%...

Specifications109
Power Consumption Normal mode: 525 W ± 10% @ 110 Vac
Eco mode: 430 W ± 10% @ 110 Vac
Power saving mode: 

110Specifications
S-Video input: One standard 4-pin min-DIN 
S-Video connector for Y/C signal.
Composite Video input: One Yellow RCA jack for 
CVBS signal.
HDMI input: Two HDMI connector for supporting 
HDMI 1.3. HDCP compliant.
Analog Audio input: One 3.5 mm stereo mini phone 
jack (Blue).
Variable audio output: One 3.5 mm stereo mini 
phone jack (Green).
USB (type A) port: One USB connector for 
Photo/PtG viewer (JPG/PPT format).
USB (type B) port: One mini USB slave for remote 
support and One USB...