NEC NLT-23WQ user manual Troubleshooting, Problem Check item

Troubleshooting

Problem

Check item

	• Insert the AC power cord plug securely in AC power
No picture on screen and no sound	outlet.
from speakers	• Make sure the set is not in the standby mode
	(The POWER/Standby indicator is red.)
No picture/No picture from AV	• Check the brightness setting of the display.
terminal	• Lamp may have malfunction.
	• Check the sound setting.
Picture is displayed, but no sound	• Make sure the sound is not muted.
	• Make sure a pair of headphones is not connected.
from the speakers.
	• Make sure the connectors of the optional speaker
	system are securely inserted.
Picture is too light	• Make sure COLOR and CONTRAST settings.
Picture is too dark.	• Make sure BRIGHTNESS setting is not set too low.
	• Lamp may have malfunction.
	• Change the batteries.
Remote control does not work.	• Make sure the infrared transmitter window is not
	receiving strong light such as light from fluorescent
	lamps.
	•The reception may be weak.
The picture is not sharp.	• The state of the broadcast may also be bad.
The picture moves.	• Make sure the antenna is facing the right direction.
	• Make sure the outside antenna is not disconnected.
	• Make sure the antenna is facing the right direction.
The picture is doubled or tripled.	• There may be reflected electric waves from
	mountains or buildings.
	• There may be interference from automobiles, trains,
The picture is spotted.	high voltage lines, neon lights, etc.
	• There may be interference between the antenna cable
	and power cable. Try positioning them further apart.
	• Is the unit receiving interference from other devices?
	Transmission antennas of radio broadcasting stations
There are stripes on the screen or	and transmission antennas of amateur radios and
colors fade.	cellular phones may also cause interference.
	• Use the unit as far apart as possible from devices
	that may cause possible interference.

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