JVC LCT2505-001A-H Manuale Utente

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

] Is the correct input selected (see page 10)?

] Connect the signal cable firmly.

] Check if the input signal format is acceptable 

on the monitor.

] Are the devices connected correctly (see page 

6)?

] Are signals being input from the connected 

devices?

] Is brightness adjusted correctly (see page 13)?

] Is the volume set at minimum (see page 10)?

] Is the muting function activated (see page 10)?

] Is “AUDIO ASSIGN” set correctly (see page 

13)?

] See page 28 for details.

] Is the power cord connected (see page 6)?

] Is the main power switch (POWER) turned on 

(see page 10)?

] Are the batteries installed correctly (see page 5)?

] Are the batteries exhausted?

] Is the front end of the remote control pointing toward the 

remote sensor?

] Is there any object blocking the path between the remote 

control and the remote sensor?

] Is the monitor too far away from you?

] Are the functions of motion sensor set to “ON”?

Power is suddenly turned on 
or off.

•  The Power-on/off Timer is activated. Deactivate it.

17

•  “AUTO POWER” of “MOTION SENSOR” is set to “ON.” 

Deactivate it.

19

The picture becomes blurred.

•  Adjust “CONTRAST” or “BRIGHT” of “PICTURE 

SETTING.”

13

•  For RGB input, adjust “DOT CLOCK” and “CLOCK 

PHASE” on the main menu.

13

•  If the connection cable used for the RGB IN terminal is 

long, set “SYNC TERM.” to “LOW.”

16

Color is abnormally bright or 
dark.

•  Adjust the picture quality on “PICTURE SETTING” of the 

main menu.

13

•  If “TEMP. OVER” is displayed, follow the procedure 

described on page 28.

28

Color is poor or unstable.

Select the correct color system.

14

The picture is cut or shifted 
toward one side.

•  Input signals (scanning frequency, etc.) are not 

appropriate.

8

•  Adjust the size and position properly.

13

Some items cannot be selected 
on the menu.

Items not available for the current input or signal format 
cannot be selected. Change the input or signal format.

—

“PLEASE ENTER PASS ID” 
appears when trying to turn on 
the monitor.

The Security Lock is activated. Enter the password to turn 
on the monitor, and then deactivate the Security Lock.

15, 17

Buttons on the main unit do not 
work.

•  The Control Lock is activated. Deactivate it.

16

•  You cannot use the buttons for the items controlled by the 

external control. Disable the external control.

—

•  You cannot use the buttons for the items controlled by the 

motion sensor. Deactivate the control by the sensor. 

19

The motion sensor does not 
work.

If the detection parts (lens) of the sensor is dirty, the 
sensing level decreases. Wipe the lens with soft cloth.

—

•  The motion sensor does not work when all the motion 

sensor settings are “OFF.”

19

The motion sensor does not 
detects the human in the 
detection area.

•  The sensor will not detect a human who is not moving.
•  The detectivity of the sensor decreases when the 

temperature difference between a body and environment 
is small.

—

The motion sensor works while 
no human is in the detection 
area.

In the following cases, the sensor detects the motion and 
makes the monitor perform the specified operation.
•  Animals such as dogs and cats are moving around the 

monitor.

•  Clothes (such as curtain) or plants swaying in the wind is 

around the monitor.

—

GM-F470S_EN.indd   26

GM-F470S_EN.indd   26

08.12.26   10:35:53 AM

08.12.26   10:35:53 AM