Hitachi PJ-TX100 user manual Related messages, Internal portion temperature is rising

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 dust-detecting window, according
RESET THE FILTER TIMER.
	to the following.

CAUTION ►The transparent area of filter cover and the dust-detecting window should be cleaned for normal operation of the optical dust detecting system. Please pay attention not to remain fiber or fragment of cloth inside the duct.

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 dust-detecting window by using a soft

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)

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