34TROUBLESHOOTING
TROUBLESHOOTING
ENGLISH |
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Nothing is displayed on the screen. | |||
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| Is the monitor's power cord plugged | yy Check if the power cord is correctly plugged in to the power outlet. | |
| in? |
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| Is the power indicator on? | yy Check the power cable connection and press the power button. | |
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| Is the power indicator displaying | yy Check that the connected input is enabled (Menu - Input). | |
| red? |
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| Is the power indicator blinking? | yy If the monitor is in | |
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| key on the keyboard to switch the display on. | |
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| yy Check if the computer is turned on. | |
| Is the "OUT OF RANGE" message | yy This occurs when signals transferred from the PC (video card) are out | |
| displayed? | of the horizontal or vertical frequency range of the monitor. Please see | |
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| the "Product Specification" section of this manual to set the appropri- | |
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| ate frequency. | |
| Is the "CHECK SIGNAL CONNEC- | yy This is displayed when the signal cable between the PC and the moni- | |
| TION" message is displayed? | tor is missing or disconnected. Check the cable and reconnect. | |
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The "OSD LOCKED" message is displayed.
Are some functions unavailable when pressing the Menu button?
yy The OSD is locked. Go to Menu > Settings and set "OSD Lock" to Unlock.
The screen retains an image.
Does image sticking occur even when the monitor is turned off?
yy Displaying a still image for a prolonged time may cause damage to the screen, resulting in the retention of the image.
yy Use a screen saver to protect the screen when using the monitor for a prolonged period of time.
NOTE
yyVertical Frequency: In order to display an image, the screen must be refreshed dozens of times per second like a fluorescent lamp.
The number of times the screen is refreshed per second is called vertical frequency or refresh rate and is represented by Hz.
yyHorizontal Frequency: The time it takes to display one horizontal line is called the horizontal cycle. The number of horizontal lines displayed in one second can be calculated by dividing one by the hori- zontal cycle. This is called horizontal frequency and is represented by kHz.
