Troubleshooting
If the picture quality is poor or there is some other problem, check the adjustments, operations, etc., before requesting service.
Symptom | Checks | Remedy | |
Mechanical sound is heard. | • Maybe the sound from the cooling fans used to prevent over heating. | ||
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The unit emits a crackling sound. | • Are the image and sound normal? | • If there are no abnormalities in the image | |
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| and sound, the noise is caused by the | |
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| cabinet reacting to changes in humidity. This | |
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| will not affect performance. | |
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Picture is disturbed. | • Is a connected component set directly in | • Leave some space between the display and | |
Sound is noisy. | front or at the side of the display? | the connected components. | |
Remote control operates erroneously. |
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The remote control does not work. | • Are the remote control’s batteries worn | • Replace both batteries with new ones. | |
| out? |
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| • Is IR REMOTE set to ON? | • Set IR REMOTE OFF on OPTION3 menu. | |
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| • Has an ID number been set for the main | • Set an ID number with the ID SELECT | |
| unit? | button, or set the ID number to ALL. | |
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Monitor’s power does not turn on | • Is the monitor’s power cord plugged into | • Plug the monitor’s power cord into a power | |
when the remote control’s power | a power outlet? | outlet. | |
button is pressed. |
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• Are all the monitor’s indicators off? | • Press the power button on the monitor to | ||
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| turn on the power. | |
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| • Are the remote control’s batteries worn | • Replace both batteries with new ones. | |
| out? |
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| • Is IR REMOTE set to ON? | • Set IR REMOTE OFF. | |
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| • Has an ID number been set for the main | • Set an ID number with the ID SELECT | |
| unit? | button, or set the ID number to ALL. | |
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Monitor does not operate when the | • Is the remote control pointed at the | • Point the remote control at the monitor’s | |
remote control’s buttons are pressed. | monitor, or is there an obstacle between | remote control sensor when pressing | |
| the remote control and the monitor? | buttons, or remove the obstacle. | |
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| • Is direct sunlight or strong artificial light | • Eliminate the light by closing curtains, | |
| shining on the monitor’s remote control | pointing the light in a different direction, etc. | |
| sensor? |
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| • Are the remote control’s batteries worn out? | • Replace both batteries with new ones. | |
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| • The remote cable is plugged into the | • Unplug the remote cable from the monitor. | |
| REMOTE IN terminal (Wired). |
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The front panel buttons of the main | • The front panel buttons do not function | • Set the Control Lock to OFF. | |
unit do not function. | during Control Lock. |
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No sound or picture is produced. | • Is the monitor’s power cord plugged into | • Plug the monitor’s power cord into a power | |
| a power outlet? | outlet. | |
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Picture appears but no sound is | • Is the volume set at the minimum? | • Increase the volume. | |
produced. |
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• Is the mute mode set? | • Press the remote control’s MUTE button. | ||
| • Are the speakers properly connected? | • Connect the speakers properly. | |
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| • Is AUDIO INPUT set correctly? | • Set AUDIO INPUT on the AUDIO menu | |
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| correctly. | |
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Poor picture with VIDEO signal input. | • Improper control setting. | • Adjust picture control as needed. | |
| Local interference. | Try another location for the monitor. | |
| Cable interconnections. | Be sure all connections are secure. | |
| Input impedance is not correct level. |
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Poor picture with RGB signal input. | • Improper control setting. | • Adjust picture controls as needed. | |
| Incorrect 15 PIN connector pin | Check pin assignments and connections. | |
| connections. |
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Tint is poor or colors are weak. | • Are the tint and colors properly adjusted? | • Adjust the tint and color (under PICTURE). | |
Nothing appears on screen. | • Is the computer’s power turned on? | • Turn on the computer’s power. | |
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| • Is a source connected? | • Connect source to the monitor. | |
| • Is the power management function in the | • Operate the computer (move the mouse, | |
| standby or off mode? | etc.). | |
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| • Is LOOP OUT set to ON? | • Set LOOP OUT OFF. | |
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Part of picture is cut off or picture is | • Is the position adjustment appropriate? | • Adjust the IMAGE ADJUST properly. | |
not centered. |
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Image is too large or too small. | • Is the screen size adjustment | • Press the WIDE button on the remote | |
| appropriate? | control and adjust properly. | |
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Picture is unstable. | • Is the computer’s resolution setting | • Set to the proper resolution. | |
| appropriate? |
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POWER/STANDBY indicator is | • Horizontal and / or vertical sync signal is | • Check the input signal. | |
lighted in red. | not present when the Intelligent Power |
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| Manager control is on. |
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POWER/STANDBY indicator is | • The temperature inside the main unit has | • Promptly switch off the power of the main | |
blinking in red. | become too high and has activated the | unit and wait until the internal temperature | |
| protector. | drops. See*1. | |
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POWER/STANDBY indicator is | — — — — — — | • Prompty switch off the power of the main | |
blinking in green and red, or green. | unit. See *2. | ||
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