Epson Powerlite 7250 Users Guide

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6
Troubleshooting
This chapter describes the problems indicated by the warning lights 
and provides information on how to solve problems with the projector. 
It is divided into the following sections:
❐Problems with the projector. See this section if the projector is not 
working and to find out what the warning lights mean.
❐Problems with the remote control. See this section if the projector 
is not responding to remote control commands.
❐Problems with the screen image or sound. See this section if you 
cannot project an image or if the screen image or sound is not 
good. 
						

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If you have a problem, check the appropriate section and follow all 
suggestions that apply to your problem. You can also check the online 
help by pressing the Help button on the control panel or remote 
control. If none of the suggestions solves the problem, call your dealer 
or contact EPSON as described on page 7.
Problems with the Projector
If you have problems with the projector, first turn it off and unplug it. 
Then plug the power cord back in and turn on the projector. If this 
does not solve the problem, check the warning lights at the top of the 
projector. These lights alert you to problems with projector operation
. 
projection lamp light power lighttemperature light
projector lamp light 
						

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Light Color Meaning
Temperature Flashing orange The projector is hot.
Red The projector is too hot and has turned off 
automatically.
Flashing red There’s a problem with the cooling fan or 
temperature sensor. Call a service 
representative.
Projection
lampRed or
flashing orange and redThe lamp needs to be replaced. (See “Replacing 
the Lamp” in Chapter 5 for instructions.)
Flashing red There’s a problem with the projection lamp, 
lamp power supply, lamp fuse, or a circuit 
malfunction in the projector.
Power Flashing green The projection lamp is warming up.
Flashing orange The projection lamp is off and the projector is 
cooling down.
Green The projector is operating normally.
Orange The projector is in sleep mode.
Off The projector has turned off automatically 
because of internal problems. Contact your 
service representative. 
						

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See the following pages for information on what to do when you see 
these warning lights or encounter other specific problems with the 
projector.
◗The power light is flashing orange and you cannot turn on the 
projector.
The lamp is cooling down. Wait until the light turns off and then turn 
on the projector.
◗The power light does not come on.
Turn off the projector, check that the power cable is connected 
securely both at the power outlet and the projector, and press the 
Power button again. Try removing and reseating the lamp.
◗Projected images get darker or start to deteriorate, or the projection 
lamp light is red.
Replace the projector lamp as described in Chapter 5.
◗The temperature light is red.
The projector is overheating, which turns the lamp off automatically. 
Let the projector cool for a few minutes, then turn it back on. Make 
sure nothing is blocking the ventilation vents.
The air filter may be clogged. Clean it as described in Chapter 5 and 
then let the projector cool for awhile.
If the projector continues to overheat after you clean the air filter, the 
problem may be caused by damage to the cooling fan or internal 
circuits. Contact a qualified service person.
Warning: Except as specifically explained in this User’s Guide, do not 
attempt to service this product yourself. 
						

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147
Problems with the Remote Control
◗The projector doesn’t respond to remote control commands.
Make sure the remote control is turned on. The RC switch, on the side 
of the remote control, should be turned to the On position.
The remote control unit’s batteries may be low on power. Replace 
them.
Make sure the projector’s mouse cable is securely connected to both 
your computer’s mouse port and the projector’s main cable. See 
Chapter 1 for details.
Make sure you selected the correct COM (communication) port for 
the wireless mouse control when you set up the ELP Link IV software. 
If necessary, you can change the COM port from the projector’s 
Advanced menu. See page 97 for more information.
Light that is too strong, or certain types of fluorescent lighting may 
affect the projector’s infrared receivers. Dim the ambient lighting and 
turn off any fluorescent lighting. Move the projector out of direct 
sunlight.
Turn off any nearby equipment that emits infrared energy, such as a 
radiant room heater. 
						

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Problems with the Image or Sound
◗An image does not appear on the screen.
Check that the Power light is on and the lens cover is off. Also make 
sure the cables are installed correctly, as described in Chapter 1.
The correct image source may not be selected. Press the Computer 
button on the control panel or the Comp1, Video, or BNC button 
on the remote control to choose another image source. 
◗Only part of the computer image is displayed.
If the computer’s output resolution setting is higher than 1024
×768 
on the PowerLite 7250 or 7350, or higher than 800
×600 on the 
PowerLite 5350, the image is resized. (See page 70 for information on 
resizing.)
If the computer output is not compatible with this resizing, choose a 
different display setting as follows. 
Windows:
In Windows 3.x, use Windows Setup in the Main program group. In 
Windows 95/98, right-click on the desktop, select Properties, click 
the Settings tab, and use the dialog box to select the resolution you 
want.  
						

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Macintosh:
For a Macintosh, choose Control Panels under the Apple menu and 
then choose Monitors. In the Monitors screen, choose Options and 
make sure Macintosh Hi-Res Display or another 1024
×768 
(PowerLite 7250 or 7350) and 800 
× 600 (PowerLite 5350) display is 
selected. For supported display settings, see “Supported Monitor 
Displays” on page 156.
You also may need to modify existing presentation files if you created 
them for a different resolution. See your software manual for specific 
information.
◗The message NO SIGNAL is displayed.
An image source not connected to the projector is selected, the signal is 
not being output from the computer, or the signal is not reaching the 
projector. Make sure the connectors are securely attached to both the 
projector and the image source. Then check that the image source is 
selected correctly. If your projector is attached to a Macintosh, make 
sure that the DIP switches on your Macintosh desktop adapter are set 
correctly. (See your Macintosh documentation if you need 
instructions.) When NO SIGNAL is displayed, you cannot access the 
Video menu.
◗A blank screen is displayed.
The computer signal cannot be interpreted by the projector. Verify the 
display format (see page 156). When you see a blank screen, you 
cannot access the projector menus. 
						

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◗The image or parts of the image are blurred or not in focus.
Adjust the Brightness and Contrast settings on the Video menu. If 
you’re viewing a computer image, also try adjusting the Tracking and 
Sync buttons on the projector’s control panel. 
There may be dirt or smears on the lens. Clean the lens as described on 
page 136.
◗The image quality is poor on a laptop computer.
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 LCD display.
◗The colors of the image are not right.
The color balance may be incorrect. If you’re displaying a computer 
image, use the Color option in the Video menu to adjust the balance 
of red, green, and blue. If you’re displaying video, adjust the 
Saturation and Tint (NTSC only) settings on the Video menu.
Check your monitor’s color balance if you’re displaying a computer 
image. 
						

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151
◗There is no sound.
First check that the volume setting is not turned all the way down and 
that the audio/video cable is securely attached to both the projector 
and the audio source. Also, make sure that the A/V Mute button is not 
enabled.
The wrong source is selected. Press the Computer button on the 
control panel to select the proper source. 
						

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