Troubleshooting
Related messages (continued)
Message | Description | |
| The horizontal or vertical wavelength of the inputted | |
SYNC IS OUT OF RANGE | signal is outside of the response parameters of this unit. | |
ON *** fH *****kHz fV *****Hz | Please confi rm the specs for this unit or the signal source | |
| ||
| specs. | |
| The internal portion temperature is rising. | |
| Please turn the power OFF, and allow the unit to cool down | |
| at least 20 minutes. After having confi rmed the following | |
CHECK THE AIR FLOW | items, please turn the power ON again. | |
| • Is there blockage of the air passage aperture? | |
| • Is the air fi lter dirty? | |
| • Does the peripheral temperature exceed 35°C? | |
CLEAN THE AIR FILTER | A note of precaution when cleaning the air filter. | |
Please immediately turn the power OFF, and clean or | ||
POWER OFF FIRST, | ||
change the air fi lter by referring to the “Air Filter” section of | ||
THEN CLEAN THE AIR | ||
this manual. After you have cleaned or changed the air fi lter, | ||
FILTER. | ||
please be sure to reset the fi lter timer. If the same message | ||
AFTER CLEANING THE AIR | ||
is displayed after the treatment, please clean the transparent | ||
FILTER, | area of fi lter cover and the | |
RESET THE FILTER TIMER. | ||
to the following. |
CAUTION ►The transparent area of filter cover and the
1. Turn off the projector, and unplug the power cord.
2. After making sure that the projector has cooled adequately, remove the fi lter cover.
Hold the release buttons of the fi lter cover, while pulling up it.
3. Wipe the transparent area of the fi lter cover by using a swab or a soft cloth.
4. Remove the air fi lter.
Hold the release buttons of the air fi lter, while pulling up it.
5. Wipecloth. the
6. Replace the air fi lter and fi lter cover.
Release buttons
Filter cover
Transparent 
area 
Air fi lter
Release buttons
Dust detecting window
(Rear side)
(Bottom side)
36
