JVC DLA-G20U manual Troubleshooting, English, Symptom, Probable cause, Corrective action, Page

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.	24
	• Is the main power switch turned on?	• Turn on the MAIN POWER switch.	26
	• Is fuse burned out?	• Turn off the main power switch, and	60
		check the fuse. If it is burned out,
		replace it.
	• Is the lamp-replacement opening cover	• Turn off the MAIN POWER switch,	26, 62
	closed correctly?	close the lamp-replacement opening
		cover, and turn on the main power
		switch again.
	• Is the air filter closed correctly?	• Turn off the MAIN POWER switch, fit	26, 64
		the air filter correctly, and turn on the
		main power switch again.
	• Has the lamp life expired? (Has the	• Turn off the MAIN POWER switch,	26, 61, 63
	lamp use time reached 1000 hours?)	replace with a new light-source lamp,
		and turn on the MAIN POWER switch.
		Reset the lamp use time after replacing
		with a new lamp.
Light is not emitted,	• Is the lens cap removed?	• Remove the lens cap.	24
or light level is low.
	• Is the lamp life near its end?	• Check the lamp use time on the menu,	44
		and if the lamp life is near its end,
		arrange for a replacement lamp, or
		replace a little earlier.
With power on,	• Is the air intake or exhaust area	• Turn off the MAIN POWER switch,	6, 8, 15, 26
operation starts but	blocked?	remove any blocking objects, and turn
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	27
appear, or audio		VIDEO and COMPUTER buttons.
sound does not occur.
	• Are connected devices connected	• Connect connected devices correctly.	20
	correctly?
	• 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	47, 49, 54
	Isn’t the wrong source (forced mode) or	the correct dedicated source (forced
	channel selected?	mode) or channel.
	• Is brightness adjusted correctly?	• Adjust brightness on the menu.	40
	• Is volume set at minimum?	• Adjust volume with the remote control’s	28
		VOL. (+/–) buttons.
	• Aren’t video and audio turned off by	• Press the remote control’s AV MUTING	29
	pressing the remote control’s AV	button to turn video and audio on.
	MUTING button?
While playing video,	• Weve adjustments performed correctly	• To have installation adjustments
image is sometimes	during installation?(Have you added	performed, ask the dealer where your
disturbed.	any new device after installation	projector or service senter.
	adjustments?)
Video image dims.	• Is focus adjusted correctly?	• Adjust focus with the remote control’s	28
		FOCUS (+/–) buttons.
	• Is distance too short or too long?	• Set the projector at the correct	16, 17
		distance.
	• Are TRACKING and PHASE adjusted	• Adjust TRACKING and PHASE on the	32, 38
	correctly?	menu.

(To be continued on the next page)

ENGLISH

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