JVC DT-V1710CG, DT-V1910CG manual Troubleshooting contd, Irregular colour

TROUBLESHOOTING (cont'd)

Problems	Points to be checked	Measures (Remedy)	Reference
			pages
Irregular colour	Is the monitor placed or moved close to	Move the device away from the monitor.
	a speaker or any other device	Press the DEGAUSS button on the front panel to
	incorporating a magnet?	degauss the screen.	4
	Has the position of the monitor been	When degaussing, wait more than 30 minutes for
	changed with the power on?	maximum effect.
Wrong picture	Has the picture position, size or	Adjust the picture size (H. SIZE, V. SIZE) or
position, wrong	distortion been changed?	position (H. POSITION, V. POSITION) in the
picture size		[SIZE/POSI. ADJ.] item in the <SETUP MENU>
		screen.
		Adjust the picture distortion (PINCUSHION, PIN.
		BALANCE, TRAPEZOID and PARALLELOGRAM)	21
		in the [DISTORTION ADJ.] item in the <SETUP
		MENU> screen.
		It may not be possible to expand the picture due
		to the selected input mode. In this case,
		adjustment is impossible.
	Have the UNDER SCAN or ASPECT	When the UNDER SCAN or ASPECT button is	5
	button been pressed?	lit, press each button to invalidate each setting.
Front panel	Has the CONTROL LOCK function	Set the CONTROL LOCK function to OFF.	22
buttons and	been set to ON?
knobs do not
	Has the monitor’s setting been	Change the setting of the external control to
function
	changed to enable control from an	control the monitor locally.	23, 24
	external unit via the REMOTE
	terminals?

The following are not malfunctions:

●You may see two horizontal lines on the monitor. They are the shadows of the “damper lines” that are necessary for composing the monitor. These lines are not a malfunction.

Damper line

(Front view of DT-V1910CG shown)

●About CRT tube reflection (when Zoom mode is used.)

The screen might appear as brownish white. This is due to a reflection of part of the image on the CRT caused by certain signal sources, and it is not a malfunction.

●When a bright still image (such as a white cloth) is displayed for a long period, it may appear to be coloured. This is due to the structure of the cathode ray tube and will disappear when another image is displayed.

●You may sometimes experience a mild electric shock when you touch the picture tube. This phenomenon is due to a normal buildup of static electricity on the CRT and is not harmful.

●The monitor emits a strange sound when the room temperature changes suddenly. This is only a problem if an abnormality appears on the screen as well.

●If two or more monitors are operated next to each other, their images may shake or be distorted. This phenomenon is due to mutual interference; it is not a malfunction. Move the monitors away from each other until the interference disappears or turn the power off on any monitor that is not being used.

When black vertical lines appear on the screen

Black vertical lines may appear on the screen if the aperture grill is tilted as a result of being shaken or jolted during shipment.

In this case, try tapping the monitor on the side. If this does get rid of the lines, follow the procedure below.

1.Display a white screen, so that the problem area can be seen clearly.

2.Maximize the “CONTRAST” and “BRIGHT” adjustments, then place a bright white rectangle on the area.

3.After a while, the lines should disappear.

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