Troubleshooting - JVC DT-V21G11 Manual De Instrucciones

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
Cannot turn on the unit.
No picture with the power on.
No sound.
"Out of range" appears.
"NO SYNC" appears.
Wrong color, no color.
The picture becomes blurred.
Wrong picture position, wrong
picture size.
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
menu.
Buttons on the monitor do not
work.
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.
26
Probable cause and corrective action
●
Press the button to turn it on.
● Plugs should be firmly inserted.
●
Turn on the AC power switch on the back of this product.
● Select the correct input using the INPUT SELECT buttons.
●
Connect the signal cable firmly.
●
Turn on the power of the connected component and set the output correctly.
● Check whether the input signal format is acceptable on the monitor.
●
Adjust the volume level.
●
Deactivate the muting function.
● Connect the signal cable firmly.
●
Turn on the power of the connected component and set the output correctly.
●
Input a signal compatible with the unit.
● Select the correct input using the INPUT SELECT buttons.
●
Connect the signal cable firmly.
●
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 "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 appropriate.
●
Adjust the items of "WHITE BALANCE SET." in the SET-UP MENU. Or, perform "reset" in "WHITE
BALANCE SET."
●
Adjust the picture contrast or brightness by using the adjustment knobs on the front panel.
Or, adjust "CONTRAST" or "BRIGHT" of "PICTURE SUB ADJ." in the SET-UP MENU.
●
Check whether the setting of 1:1 is appropriate.
●
Check whether the input signal format is acceptable on the monitor.
● 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.
●
The items controlled by the MAKE system do not appear on the menu.
● Set "CONTROL LOCK" in the SET-UP MENU to "OFF."
●
You cannot use the buttons for the items controlled by the MAKE system. Disable the external
control.
Page
10
8
8
10
8
—
29, 30
9
9
8
—
12, 29,
30
10
8
—
9, 19
10
19
9, 19
10
29, 30
—
22
20
22, 23