JVC DT-V21G11Z User Manual

26

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.

●

 Press the 

 button to turn it on.

●

 Plugs should be firmly inserted.

●

 Turn on the AC power switch on the back of this product.

10

8
8

●

 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.

10

8

—

29, 30

●

 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.

9
9
8

—

●

 Input a signal compatible with the unit.

12, 29, 

30

●

 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.

10

8

—

●

 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.”

9, 19

10
19

●

 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.

9, 19

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.

●

 Check whether the setting of 1:1 is appropriate.

●

 Check whether the input signal format is acceptable on the monitor.

10

29, 30

●

 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.

—

22

●

 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.

20

22, 23

●

  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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