
APPENDIX
TROUBLESHOOTING
Before calling your dealer or service center for assistance, check the matters below once again.
1.Make sure you have connected a projector to your computer or video equipment as described in the section "CONNECTING PROJECTOR" on pages 11 ~ 13.
2.Check cable connection. Verify that all computer, video and power cord are properly connected.
3.Verify that all power is switched on.
4.If a projector still does not produce an image, 
5.If an image still does not appear, unplug a projector from your computer and check your computer monitor's display. The problem may be with your graphics controller rather than with a projector. (When you reconnect a projector, be sure to turn the computer and monitor off before you power up the projector. Power the equipment back on in order of : Projector and computer.)
6.If the problem still exists, check the following chart.
| Problem: | Try these Solutions | |
| No power. | ● Plug a projector into your AC outlet. | |
| 
 | ● Make sure READY Indicator lights. | |
| 
 | ● Wait 90 seconds after a projector is turned OFF when turning the projector back on. | |
| 
 | NOTE : After pressing Power  | |
| 
 | follows: | |
| 
 | 1. LAMP indicator lights bright and READY indicator turns off. | |
| 
 | 2. After 90 seconds, READY indicator lights green again and a projector may be | |
| 
 | turned on by pressing Power  | |
| 
 | ● Check WARNING TEMP. and READY indicator. If both WARNING TEMP. and READY | |
| 
 | indicator flashes, the projector cannot be turned on. | |
| 
 | (See "TURNING ON/OFF PROJECTOR" section on page 19.) | |
| 
 | ● Check Projection Lamp. (Refer to page 38.) | |
| 
 | 
 | |
| Image is out of | ● Adjust focus of a projector. | |
| focus. | ● Make sure a projection screen is at least 4.1’ (1.2m) from the projector. | |
| ● Check Projection Lens to see if it needs cleaning. | ||
| 
 | ||
| 
 | NOTE : Moving a projector from a cool temperature location to a warm temperature location | |
| 
 | may result in moisture condensation on Projection Lens. In such an event, leave a | |
| 
 | projector OFF and wait until condensation disappears. | |
| 
 | 
 | |
| Picture is Left/Right | ● Check Ceiling / Rear feature. (See “SETTING” section on page 36.) | |
| reversed. | 
 | |
| 
 | 
 | |
| Picture is | ● Check Ceiling feature. (See “SETTING” section on page 36.) | |
| Top/Bottom | 
 | |
| reversed. | 
 | |
| 
 | 
 | |
| Some displays are | ● Check Display feature.(See “SETTING” section on page 36.) | |
| not seen during the | 
 | |
| Operation. | 
 | |
| 
 | 
 | |
| No image. | ● Check the connection between your computer or video equipment and a projector. | |
| 
 | ● When turning a projector on, it takes about 30 seconds to display an image. | |
| 
 | ● Check the system that you select is corresponding with your computer or video | |
| 
 | equipment. | |
| 
 | ● Make sure the temperature is not out of the Operating Temperature (5°C ~ 35°C). | |
| No sound. | ● Check audio cable connection from audio input source. | |
| 
 | ● Adjust the audio source. | |
| 
 | ● Press VOLUME (+) button. | |
| 
 | ● Press MUTE button. | |
| 
 | 
 | 
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