JVC DLA-M4000LU When the emergency indicator starts blinking, Troubleshooting Cont, No.51666

No.51666

Troubleshooting (Cont.)

Symptom	Probable cause	Corrective action	Page
During video replay,	• have Installation adjustment been	• For installation, consult the dealer
video image	performed?	where you purchased the projector or a	––––
sometimes is		local service center.
disturbed
Image color is poor or	• Is picture quality (color desity, etc.)	• Adjust picture quality on the menu.	38, 40
image is disturbed	adjusted correctly?
	• Is the correct broadcast system (color	• Set the broadcast system (color	34
	system) selected?	system) to AUTO.
	• Are signals (scanning frequency, etc.)	• Check if the signal is appropriate	19
	to connected devices appropriate?	(scanning frequency, etc.), and input
		the appropriate signal.
	• Is the source setting correctly selected?	• Set the source setting to AUTO. If the
	Isn’t a wrong source (forced mode)	problem still persists, set it to the	44 ~ 46
	selected?	correct dedicated source (forced
		mode).
Specific colors fail to	• Are specifications of the signal being	• Check specifications of both signal
be displayed	input matching those of the video input	being input and video input card.	––––
	card?
	• Is the input cable connected correctly?	• Check cable connections.	21
	• Has the lamp's life come to its end?	• Check the used lamp hours on the
		menu, and if the lamp life is near its	60
		end, consult the dealer where you
		purchased the projector or a local
		service center.
The upper part of the	• While computer system signal is input,	• Input separate sync signals for vertical	10
video image bows or	isn’t a sync signal for composite sync	sync (V) and horizontal sync (H)
distorts.	(Cs) or G on sync being input?	signals.
	• Isn’t signal with much jitter or skew	• Input signals with little jitter or	––––
	distortion being input to a video deck?	distortion.
	• Is the source setting correctly selected?	• Set the source setting to AUTO. If the
	Isn’t a wrong source (forced mode)	problem still persists, set it to the	44 ~ 46
	selected?	correct dedicated source (forced
		mode).
	• Have the channel's setup contents	• Check the setup contents been	47 ~ 51
	been changed?	changed.
The projection	• Have the channel's setup contents	• Check the setup contents of the	47 ~ 51
position on the screen	been changed?	channel and correct them if necessary.
has shifted.
	• Is sync signal being input correctly?	• Check sync signal and related	10
		connection.
	• Has the projector been moved from its	• Check the installed position.	––––
	installed place?
Video image suddenly	• Aren’t video turned off by pressing the	• Press the remote control’s AV HIDE	12
go out.	remote control’s AV HIDE button?	button to turn video on.
	• Are all color video signals being input?	• Check signals and connections.	19 ~ 23

Troubleshooting (Cont.)

Symptom	Probable cause	Corrective action	Page
Lens shift adjustment	• Is the shift center lock pin for shipment	• Remove the shift center lock pin, and
is not possible.	left attached?	then make adjustments. (For how to
		remove the shift center lock pin,	16
		consult the dealer where you
		purchased the projector or a local
		service center.)
Remote control unit	• Are batteries installed correctly?	• Match the polarities of batteries
does not work.		correctly (+ to + and - to -).	13
	• Are batteries exhausted?	• Replace with new batteries.	13
	• Is there a shielding object between the	• Remove any shielding objects.	––––
	remote control unit and the remote
	sensor?
	• Is the distance too long?	• Use the remote control unit at a nearer	22
		point.
	• Is the remote control's LENS	• Set the remote control's LENS
	LOCKÔUNLOCK switch set to LOCK?	LOCKÔUNLOCK switch to UNLOCK?	12

■When the emergency indicator starts blinking:

Refer to the CAUTION and NOTES on page 24.

*This projector is equipped with a microcomputer that may operate abnormally due to interference from external components. If this happens, turn off the main power and disconnect the power cord from the wall AC outlet. Then reconnect the power cord to AC outlet and turn on the main power again.

(For the turning on and off the power, see pages 25)

DLA-M4000LU DLA-M4000LE

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