JVC DT-R17L4D, DT-R24L4D user service Troubleshooting

Troubleshooting

Solutions to common problems related to the monitor are described here. If none of the solutions presented here solve the problem, unplug the monitor and consult an authorized dealer or service center.

Symptom			Probable cause and corrective action	Page
	•	Press the	button.	10
No power supply	•	Firmly insert the AC power plug.		8
	• Turn on the POWER switch on the rear panel.			8
	• Select the correct input using the INPUT SELECT buttons.			10
No picture with the power on	•	Connect the signal cable firmly.		8
	• Turn on the power of the connected component and set the output correctly.			—
	•	Check whether the input signal format is acceptable on the monitor.		26, 27
	•	Adjust the volume level.		10
No sound	•	Deactivate the muting function.		10
	•	Connect the signal cable firmly.		8
	• Turn on the power of the connected component and set the output correctly.			—
“OTHERS” or “Out of range” appears.	•	Check whether the input signal format is acceptable on the monitor.		11, 26, 27
	• Select the correct input using the INPUT SELECT buttons.			10
	•	Connect the signal cable firmly.		8
“NO SYNC” appears.	• Turn on the power of the connected component and output video signals. Or, check			—
		whether the video output of the component (video output setting of the VCR or
		graphic board of the computer) is set correctly.
	•	Adjust each picture adjustment knob on the front panel or adjust the items of		10, 15
		“PICTURE SUB ADJ.” in the SET-UP MENU. Or, perform “reset” in “PICTURE SUB
		ADJ.”
	• Check whether the setting of COLOR OFF or SCREENS CHECK buttons are			10
Wrong color, no color		appropriate.
	• Select the proper color system (“COLOR SYSTEM”) in “FUNCTION SETTING” of			15
		the SET-UP MENU.
	• Adjust the items of “WHITE BALANCE SET.” in the SET-UP MENU. Or, perform			16
		“reset” in “WHITE BALANCE SET.”
	•	Adjust the picture contrast or brightness by using the adjustment knobs on the front		10, 15
The picture becomes blurred.		panel. Or, adjust “CONTRAST” or “BRIGHT” of “PICTURE SUB ADJ.” in the SET-
		UP MENU.
	•	Check whether the setting of 1:1 is appropriate.		10
	• Check “AUTO ASPECT” “MANUAL ASPECT” and “SD4:3 SIZE” settings in MAIN			13
		MENU.		26, 27
Wrong picture position, wrong picture	•	Check whether the input signal format is acceptable on the monitor.		16
size.	• Adjust the picture size (H SIZE/V SIZE) or position (H POSITION/V POSITION) of
		“SIZE/POSI. ADJ.” in the SET-UP MENU.		—
	•	For some signals, the picture cannot be displayed fully in the effective screen area.
		There is no sure method to solve this problem.
Some items do not appear on the	•	The items which are not available for the current input or the current input signal are		—
		not displayed on the menu. Change the input or the input signal.
menu.
	• The items controlled by the MAKE system do not appear on the menu.			18
	• Set “CONTROL LOCK” in the SET-UP MENU to “OFF.”			17
Buttons on the monitor do not work.	• You cannot use the buttons for the items controlled by the MAKE system. Disable			18, 19
		the external control.

The following are not malfunctions.

•When a still image is displayed for a long time, it may remain indistinctly on the screen after the picture has changed. Though the remaining picture will disappear after a while, there may be a case that it remains for a long period depending on the length of time the still image was displayed for. This is due to the characteristics of the LCD display and is not a malfunction.

•Red spots, blue spots and green spots on the panel surface are a normal characteristic of LCD displays, and not a problem. The LCD display is built with very high precision technology; however, be aware that a few pixels may be missing or constantly lit.

•The following symptoms are problems only when pictures or sounds are not played back normally.

–A slight electric shock occurs when you touch the monitor.

–The top and/or rear panel of the monitor becomes hot.

–The monitor emits a cracking noise.

–The monitor emits a mechanical noise.

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