Epson Powerlite 7850p Multimedia Projector Users Guide

							Solving Problems181
If you’re using a PC laptop:
■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 
laptop’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 video card, you might need to use 
the Display utility in the Control Panel to make sure that both the 
LCD screen and external monitor port are enabled. See your 
computer’s documentation or online help for details.
If you’re using Macintosh OS X: 
1. Open 
System Preferences.
2. Double-click 
Displays.
3. Make sure the 
VGA Display or Color LCD dialog box is selected.
4. Click the 
Arrange or Arrangement tab.
5. Make sure the 
Mirror Displays checkbox is selected.
If you’re using Macintosh OS 8.6 to 9.x:
1. From the Apple menu, select 
Control Panels, then click 
Monitors and Sound
.
2. Click the 
Arrange icon.
3. Drag one monitor icon on top of the other. This lets you display 
on the projector screen as well as the LCD screen.
4. If this option isn’t available, click the 
Monitor icon. 
5. Select one of the listed 
Simulscan resolutions. (Allow a few 
seconds for the projector to sync up after making the selection.) 
						

							182Solving Problems
The message Not Supported is displayed.
■Make sure the correct Input Signal is selected in the Setting 
menu (see page 137).
■Make sure your computer’s resolution doesn’t exceed UXGA 
(1600 
× 1200), and the frequency is supported by the projector 
(see page 204). If necessary, change your computer’s resolution 
setting as described on the following page. 
Only part of the computer image is displayed.
■Press the Auto button on the remote control.
■Make sure the image Position setting is correct on the Video 
menu. See Chapter 6 for more information.
■Make sure your computer’s resolution setting is correct. Ideally, it 
should be 1024 
× 768 to match the projector’s native resolution. 
If this option isn’t available, select one of the other compatible 
video formats listed on page 204.
■Windows:
Right-click the desktop, select 
Properties, click the Settings 
tab, and select a different resolution. 
■Macintosh OS X:
Open 
System Preferences, double-click Displays, and 
then select a different resolution.
■Macintosh OS 8.6 to 9.x:
On the Apple menu, choose 
Control Panels, then click 
Monitors and Sound. Select a different resolution. 
■You also may need to modify existing presentation files if you 
created them for a different resolution. See your software 
documentation for specific information. 
						

							Solving Problems183
The image isn’t square, but keystone-shaped.
■If the top or bottom of the image is broader, press the Sync + or 
Sync - button on the projector until the image is square.
■If the projector is angled toward the screen from the left or right, 
the image will be broader on one side. Center the projector in 
front of the middle of the screen, facing the screen squarely. If this 
doesn’t work, press the 
Tracking + or Tracking - button on the 
projection until the image is square.
■If the image has no parallel sides, use Quick Corner. Press the 
Menu button, select the Setting menu, then select Keystone. 
Finally, select 
Quick Corner and make your adjustments with the 
 pointer button. See page 37 for details.
The image contains static or noise.
■Make sure the correct Input Signal is selected in the Setting 
menu (see Chapter 6).
■If you’re using a computer cable longer than 6 feet (2 meters), or 
an extension cable, the image quality may be reduced.
■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 laptop 
computer and the projector, turn off the laptop’s LCD display.
The image is blurry.
■There may be dirt or smears on the lens. Clean the lens as 
described on page 168.
■Adjust the focus using the focus ring.
■Make sure the lens is not fogged by condensation. You may need 
to wait before using the projector after moving it from a cold 
environment to a warm environment. 
						

							184Solving Problems
■Adjust the Sharpness setting on the Video menu (see 
Chapter 6). When you change video settings, you should 
be able to see the effect on the screen immediately. If you’re 
projecting from a computer, you may also need to adjust the 
tracking and sync as described in the next section. If you don’t 
like the new settings, you can always select 
Reset to return to 
the factory default settings.
You see vertical bands, or the image still looks blurry after 
trying the solutions in the previous section.
■If you’re projecting from a computer and displaying an image that 
contains a lot of fine detail, you may notice one or more vertical 
bands, or some of the characters may look heavy or blurred. Press 
the 
Auto button on the remote control. This resets the projector’s 
tracking and sync settings.
■If further adjustment is needed, you can fine-tune the Tracking 
and 
Sync settings manually using the Video menu as described in 
Chapter 6.
1. Fill the screen with an image containing fine detail when 
making these adjustments. For example, in Windows you can 
select a pattern to appear as your desktop background. If this 
option isn’t available, try projecting black text on a white 
background.
2. Adjust the 
Tracking to eliminate vertical bands.  
						

							Solving Problems185
3. Adjust the Sync setting to increase the sharpness of the 
image. 
The colors of the image are not right.
■If you’re displaying a computer image, use the Color Mode 
option in the projector’s Video menu to adjust the color. If you’re 
displaying video, adjust the 
Color, Tint, and Color Mode 
settings on the Video menu.
■Try changing the Color Adjustment setting on the Advanced 1 
menu.
■Check your computer display settings to correct the color balance.
There is no sound.
■Make sure the A/V Mute button is not enabled.
■Try adjusting the Volume setting in the Audio menu (see 
page 131).
■If you’re using a VCR or other video source, make sure the 
volume is not turned all the way down or muted. Also, make sure 
the cables are connected correctly, as described in Chapter 3.
■If your presentation includes computer audio, make sure the 
volume control on your computer is not turned all the way down 
or muted. If you’re using the audio cable, make sure it is securely 
connected to both the projector and your computer’s   
headphone jack or   audio out jack.
■Make sure the Windows volume controls on your computer are 
not turned all the way down or set to Mute. You may be able to 
check this by clicking the volume control in your Windows 
System Tray (lower right corner of the screen).
note
Because of the different 
technologies used, your 
projected image may not 
exactly match the colors on 
your laptop or computer 
monitor. 
						

							186Solving Problems
Solving EasyManagement Problems 
You don’t see your projector in the EMP Monitor window.
■Make sure that you’ve connected the projector to the network and 
configured it correctly; see page142 for information about setting 
up the projector for a wired network, or page 70 for information 
about setting it up for a wireless network. Also, make sure you’ve 
registered the projector with EMP Monitor. See page 144.
■Make sure that Standby Mode in the projector’s Advanced 1 
menu is set to 
Network ON.
■If the computer you are using is running Windows XP or 2000, 
you must be logged in as the Administrator.
■Try restarting your computer.
You can’t connect to the projector using NS Connection.
■Make sure you’ve installed the EPSON 802.11b card correctly in 
the projector; see page 68 for instructions. If you have to reinstall 
the card, restart NS Connection or the program will not be able to 
detect the projector.
■Make sure your projector and computer are configured correctly. 
See page 70 (Ad Hoc mode) or page 77 (Access Point mode) or 
details.
■Make sure that you have sufficient wireless signal strength (above 
50 per cent). If you have a Macintosh, check the AirPort icon on 
the Macintosh menu bar. For Windows, see the documentation 
for your computer’s wireless card or adapter for details.
■Make sure you aren’t projecting one of the EasyMP configuration 
screens. (You should see a message that the projector is ready to 
connect.) If you have to exit a configuration screen, restart 
NS Connection.
■If the projector is configured for Access Point mode and you’re 
using DHCP, allow a minute or two for your projector to appear. 
Sometimes it takes the server a little while to pick up the IP 
address. 
						

							Solving Problems187
■If you’ve changed any settings for your projector or network, or 
you’ve restarted your computer, allow a minute or two for the 
connection to appear. If you’re using AirPort, you may have to 
turn AirPort off and then on again.
■Make sure that you’re trying to connect to the right network. In 
Windows, verify that you’ve enabled your computer’s connection 
to the access point (see page 85) or that your wireless card or 
adapter is enabled and its SSID is set to match the projector’s 
ESSID (see page 75). In Macintosh, click the AirPort icon at the 
top of your Macintosh desktop to make sure AirPort is turned on 
and the projector’s ESSID or your AirPort network is selected.
■If you have an access point or AirPort base station and you’re not 
using DHCP, check your projector’s IP address on the Access 
point mode advanced settings screen. The first three segments of 
the IP address should be identical to the first three segments of the 
IP address for your access point or base station. The last segment 
of the projector’s IP address should be close, but not identical, to 
the last segment of the IP address for your access point or base 
station. 
■If you’re not using DHCP, check your projector’s Gateway 
address on the projector’s Access point mode advanced settings 
screen. It should be identical to the IP address for your access 
point or AirPort base station.
■If you’re using a projector keyword, it changes each time you turn 
the projector off and then on again, or remove and reinsert the 
802.11b wireless card. Check the projector’s keyword on the 
EasyMP Network screen and enter it at the prompt.
■If you’re using AirPort, check the configuration of your AirPort 
network. Start the AirPort Admin utility, select your base station, 
click 
Configure, then click Show All Settings. Finally, click the 
Network tab. If you set up your projector to connect in DHCP 
mode, 
Distribute IP Addresses and Share a Single IP 
Address 
should both be on. 
■If you’re using AirPort and DHCP is turned off on your 
projector’s Access point mode advanced settings screen, make sure 
Distribute IP Addresses is deselected.  
						

							188Solving Problems
■If you’re using Access Point mode and you’re connecting to the 
wrong network, you may be experiencing signal interference from 
another network. Try resetting your access point or base station, 
then restart NS Connection.
■If you’re using AirPort, the projector’s ESSID should match the 
AirPort network name, not the name of the AirPort base station. 
To check the network name, start the AirPort Admin utility, 
select your base station, and click 
Configure. Then click Show 
All Settings
. The network name appears on the AirPort tab.
■Try setting your AirPort Extreme card to operate in 802.11b only 
mode. To access this setting, start the AirPort Admin utility, 
select your base station, click 
Configure, and then click Show 
All Settings
. Finally, click the Network tab.
■If you’re prompted for a password when you connect, enter the 
WEP encryption key if you’re using WEP encryption.
■Try connecting using IP Connect Mode. See page 95 for 
instructions.
■Restart your computer.
An image displayed with EasyMP appears distorted.
Because of their resolution, some JPEG images cannot be displayed 
correctly. Some JPEG files from digital cameras cannot be previewed. 
Files with a high compression ratio may appear blurry.
In EMP SlideMaker, PowerPoint files don’t appear in the 
file window.
EMP SlideMaker does not support PowerPoint 95. Files created 
in this version of PowerPoint must be opened and resaved in 
PowerPoint 97 or later. 
						

							Solving Problems189
In EMP SlideMaker, your PowerPoint files don’t display 
thumbnails and can’t be pasted into scenarios.
If you use PowerPoint 97, make sure the MS Office JPEG converter 
has been installed. Run the Office 97 installer, display the 
Converts 
and Filters
 option, and install the JPEG filter. Also, make sure 
PowerPoint is installed on the computer you’re using to build the 
scenario.
You can’t edit scenario files in EMP SlideMaker after they 
have been transferred to the memory card.
When scenario files are transferred, they are converted to the .SIT 
format. You can only edit scenarios before they are transferred (in the 
.SIC format). Open the scenario files saved on your hard drive, make 
any desired changes, then transfer the scenario again to your memory 
card.
You can’t transfer your slideshow to the memory card 
because you aren’t able to see the card’s drive letter.
You must insert the memory card in your computer’s PCMCIA slot 
before you select 
Send Scenario from the Scenario Option(s) menu. 
If you don’t, you won’t be able to see the card’s drive in the drive 
selection window. If this happens, close and restart EMP SlideMaker. 
Make sure your card is inserted before you select 
Send Scenario.
You can’t play your movies on the projector.
The projector only supports MPEG2 files. It does not support 
MPEG1 files.
EasyMP is unable to see the image files on your camera.
Make sure your camera shows up on your desktop as a drive letter 
when you connect it to your computer. If it does, it is probably a USB 
mounted device and will work with your projector. The projector does 
not support TWAIN-compliant digital cameras. 
						

							190Solving Problems
Solving Problems with the Remote 
Control
The projector doesn’t respond to remote control commands.
■If you’re using the remote control for the first time, be sure to 
push up on the 
ON/OFF switch, as shown on page 19.
■The remote control’s batteries may not be installed correctly or 
may be low on power. To change the batteries, see page 34. 
■Make sure your remote control’s ID is set to 0, or to the 
projector’s ID. See page 135.
■Make sure you are within about 30 feet (10 meters) of the 
projector, and within range of the projector’s front or back sensor 
(approximately 30° to the left or right and 15° above or below).
■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.