5-2 Before Requesting Service
Please check the following before requesting
The monitor screen flickers. |
| Check if the signal cable between the computer and the monitor is securely |
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| connected and tightened. |
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| (Refer to Connecting to a Computer) |
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PROBLEMS RELATED TO SCREEN | ||
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Screen is blank and power indicator is off. |
| Ensure that the power cord is firmly connected and the LCD monitor is on. |
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| (Refer to Connecting to a Computer) |
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<Check Signal Cable> message |
| Ensure that the signal cable is firmly connected to the PC or video sources. |
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| (Refer to Connecting to a Computer) |
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<Mode Not Supported> message |
| Check the maximum resolution and the frequency of the video adapter. |
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| Compare these values with the data in the Preset Timing Modes Chart. |
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Picture rolls vertically. |
| Check if the signal cable is securely connected.Connect it again securely. |
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| (Refer to Connecting to a Computer) |
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Image is not clear. Picture is blurred. |
| Run Frequency <Coarse > and <Fine> tuning. |
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| Turn on again after removing all accessories(video extension cable, etc.) |
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| Set resolution and frequency to the recommended ranges. |
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Picture image is unstable and vibrates. |
| Check if the resolution and frequency set for the computer video card falls |
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| in the range supported by the monitor. If not, reset them referring to the |
Ghost images are shown in the picture. |
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| current <Picture> under the monitor menu and Preset Timing Modes. | |
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The image is too light or too dark |
| Adjust the <Brightness> and <Contrast> |
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| (Refer to the <Brightness>, <Contrast>) |
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Screen is blank and the power indicator light |
| The monitor is using its power management system |
blinks every 0.5 or 1 seconds |
| Press a key on the keyboard |
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The screen is blank and is blinking. |
| If you see the <TEST GOOD>message on the screen when you press the |
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| [MENU] button, check the cable connection between the monitor and the |
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| computer to ensure that the connector is properly connected. |
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| PROBLEMS RELATED TO AUDIO | |
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No sound |
| Ensure that the audio cable is firmly connected to both the |
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| your monitor and the |
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| (Refer to Connecting to a Computer) |
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| Check the volume level. |
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The sound level is too low. |
| Check the volume level. |
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| If the volume is still too low after turning the control to its maximum, check |
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| the volume control on the computer sound card or software programme. |
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PROBLEMS RELATED TO REMOTE CONTROL | ||
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The remote control buttons do not respond. |
| Check the battery polarities |
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| Check if the batteries have been exhausted. |
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| Check if the power is on. |
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| Check if the power cord is securely connected. |
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| Check if a special fluorescent or neon lamp is on in the vicinity |
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Troubleshooting |