Epson Projector Powerlite 1720 User Manual

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If you’re using a PC notebook: 
■Hold down the Fn key on the keyboard and press the function 
key that lets you display on an external monitor. It may have an 
icon such as  , or it may be labelled 
CRT/LCD. Allow a few 
seconds for the projector to sync up after pressing it. Check your 
notebook’s manual or online help for details. 
On most systems, the   key lets you toggle between the LCD 
screen and the projector, or display on both at the same time.
■Depending on your computer’s...

82Solving Problems
■If projecting from a computer, press the Auto button on the 
remote control. Also make sure the image 
Position setting is 
correct in the Signal menu (see page 55).
■Check the projector’s Resolution setting (see page 54). Select 
Normal or Wide, depending on the size of your computer’s 
display panel.
■Make sure your computer is not set to display an extended 
desktop.
■Press the Esc button on the remote control to cancel the E-Zoom 
function.
■Make sure your computer’s resolution...

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■Keep your computer and video cables away from the power cord 
as much as possible to prevent interference.
■The video signal may be split between the computer and the 
projector. If you notice a decline in the projected image quality 
when the image is displayed simultaneously on your notebook 
computer and the projector, turn off the notebook’s LCD display.
■Make sure the correct input signal is selected in the Signal menu 
(see page 55).
■If still images are jittery, turn on the...

84Solving Problems
■If further adjustment is needed, you can fine-tune the Tracking 
and 
Sync settings manually using the Signal menu, as described 
on page 55.
1. Fill the screen with an image containing fine detail, such as 
black text on a white background.
2. Adjust the 
Tracking to eliminate vertical bands. 
3. Adjust the 
Sync setting to increase the image sharpness. 
The image is too light or dark, or colors are incorrect.
■Press the Color Mode button to select a different color mode (see 
page...

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There is no sound, or the sound is not loud enough.
■Press the   button on the projector or remote control to increase 
the volume.
■Make sure A/V Mute is not enabled. (The A/V Mute button on 
the remote control may have been pressed.) 
■Make sure the A/V Mute slide is open.
■Try adjusting the Volume setting in the Setting menu (see 
page 56).
■If you’re using a DVD player or VCR or other video source, make 
sure the volume is not turned all the way down or muted. Also, 
make sure the...

86Solving Problems
■Dim the room lights and turn off any fluorescent lights. Make 
sure the projector is not in direct sunlight. Strong lighting, 
especially fluorescent lights, may affect the projector’s infrared 
receivers. Also, turn off any nearby equipment that emits infrared 
energy, such as a radiant room heater. To avoid interference, you 
can also turn off the projector’s front or back sensor with the 
Remote Receiver setting (see page 57), but this may limit where 
you can use the remote...

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Where To Get Help
Epson provides these technical support services:
Internet Support 
Visit Epson’s support website at www.epson.com/support and select 
your product for solutions to common problems. You can download 
utilities and documentation, get FAQs and troubleshooting advice, or 
e-mail Epson with your questions.
Visit http://www.presentersonline.com to access tips, templates, and 
training for developing successful presentations.
Speak to a Support Representative
To use the...

88Solving Problems
Purchase Supplies and Accessories
You can purchase screens, carrying cases, or other accessories from an 
Epson authorized reseller. To find the nearest reseller, call 
800-GO-EPSON (800-463-7766). Or you can purchase online at 
www.epsonstore.com (U.S. sales) or www.epson.ca (Canadian sales). 

89
A
Projector Installation
This appendix provides guidelines on installing the projector in a 
permanent location, such as a theater or conference room.
The projector can be installed for four different viewing setups: front 
projection, ceiling projection, rear projection onto a semi-transparent 
screen, or rear/ceiling projection, as shown: 
To project from overhead, you’ll need the optional ceiling mounting 
hardware; see page 12 for ordering information. You’ll also need to 
select 
Front/Ceiling or...

90Projector InstallationIf you’re mounting the projector on the ceiling and you place it above 
screen level, you’ll have to tilt the projector down to position the 
image on the screen. This causes the image to lose its square shape. 
You can correct the distortion using the 
Keystone function in the 
projector’s menu system (see page 56).
If you place the projector so that the base of the lens is level with the 
bottom of the screen, the image should be square and you won’t have 
to adjust it. If you...