JVC DLA-M4000LU operating instructions Troubleshooting, Clean the filters, Reinstall the filters

Filter Maintenance and Light-Source Lamp Replacement (Cont.)

Cleaning and Replacing the Filter (Cont.)

4 Clean the filters.

Wash the filter in water with neutral detergent, and dry it in the shade.

Troubleshooting

Solutions to common problems related to your projector are described here. If none of the solutions presented here solves the problem, unplug the projector and consult a authorized dealer or service center.

Symptom	Probable cause	Corrective action	Page
Power is not supplied.	• Is the power cord disconnected?	• Insert the power cord (plug) firmly.	23
	• Is the main power switch turned on?	• Turn on the MAIN POWER switch.	25
	• Is the correct power voltage used?	• Check that AC220V is supplied.	3, 65
	• Has the breakertripped open?	• Check that the breaker is closed.	––––
	• Has the lamp protective function	• Wait until the lamp has cooled down.
	activated? (This can occur if the power	(Turn on the main power sand let the
	is shut down due to a power failure,	fans cool the lamp.)	––––
	etc.)	About 10 minutes later, press
		OPERATE on the remote control.
Light is not emitted,	• Is the lens cap removed?	• Remove the lens cap.	23
or light level is low.
	• Is the lamp life near its end?	• Check the lamp use time on the menu,
		and if the lamp life is near its end,	41, 59
		arrange for a replacement lamp, or
		replace a little earlier.

No.51666

5 Reinstall the filters.

To reinstall the filters to the projector, reverse the procedure for removing . Finally, be sure to reinstall the filter covers.

Notes

•Install the filters correctly; otherwise the projector will not operate normally.

•If the filters and/or filter holders are damaged, the projector may fail to operate. Then, replace with new parts.

CAUTIONS

•Put on rubber gloves when using neutral detergent.

•After you have washed the filter in water, make sure the filter is completely dry before reinstalling it. Otherwise, electric shock or malfunction could occur.

•Do not clean the filter using a vacuum cleaner. Since the filter is soft, it may be sucked into the vacuum cleaner or damaged.

	• Has the projector been moved from its	• Check the installed position.	––––
	installed place?
With power on,	• Is the air intake or exhaust area	• Turn off the MAIN POWER switch,
operation starts but	blocked?	remove any blocking objects, and turn	8, 9, 16
stops in a few minutes.		on the MAIN POWER switch again.
Video image does not • Is the correct input selected?		• Select the correct inputs with the AV	26
appear.		and RGB buttons.
	• Are connected devices connected	• Connect connected devices correctly.	20, 21
	correctly?

About Light-Source Lamp Replacement

The light-source lamp has its service life. It is approximately 1000 hours.

When the light-source lamp approaches the end of its service life, its degradation progresses rapidly. When the lamp’s used hours exceed 900 hours, the projector’s LAMP indicator comes on. Also, at the start of projection (lamp energized), the message “REPL.-LAMP” appears on the projection screen for about two minutes. Then, the light-source lamp needs to be replaced. When lamp’s service has reached 1000 hours, the projector’s LAMP indicator starts blinking. The specified lamp replacement period is 1000 hours, but depending on use conditions, the replacement period may vary. If video image is dark and its color tint is extraordinary even after you have adjusted color tint and brightness, replace the light-source lamp a little earlier.

For replacing the light-source lamp, consult the dealer where you purchased your projector or a local service center.

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	• Are signals being supplied from the	• Set connected devices correctly.	––––
	connected devices?
	• Are input signals (scanning frequency,	• Check if the signal is correct as input	19
	etc.) appropriate?	(scanning frequency, etc.).
		Input the appropriate signal.
	• Is the source setting correctly selected? • Set the source setting to AUTO or to		44, 46
	Isn’t a wrong source (forced mode)	the correct dedicated source (forced
	selected?	mode).
Video image dims.	• Is brightness adjusted correctly?	• Adjust brightness on the menu.	38, 40
	• Is focus adjusted correctly?	• Adjust focus with the remote control’s	27, 30
		FOCUS (+/–) buttons.
	• Is distance too short or too long?	• Set the projector at the correct	18
		distance.
Color is poor or	• Are TRACKING and PHASE adjusted	• Adjust TRACKING and PHASE on the	30, 36
unstable.
	correctly?	menu.
	• Is picture quality (color density, etc.)	• Adjust picture quality on the menu.	38, 40
	adjusted correctly?
	• Is the correct CLAMP selected?	• Select the correct CLAMP on the	41, 42
		OPTION MENU.

(To be continued on the next page)

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DLA-M4000LU DLA-M4000LE