| PROBLEM |
| CHECK TO SEE: |
| No Display. |
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| Is the power cord is firmly plugged in the socket. |
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| a) Power indicator does not light up. |
| Is the power switch is turned on. |
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| Is the AC outlet is OK. Please check using another piece | |
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| of equipment. |
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| Is a blank screen saver is active, use the keyboard or |
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| mouse to activate. |
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| Increasing the CONTRAST and/or BRIGHTNESS to |
| b) Power indicator is green. |
| display an image. |
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| Is the computer is ON. | |
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| Is the signal cable is properly connected at both ends. |
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| Is the signal timing of the computer is within the spec of |
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| the monitor. |
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| Is the power management mode is activated, use the |
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| keyboard or mouse to activate. |
| c) Power indicator is amber. |
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| Is the computer is ON. | |
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| Is the signal cable is properly connected at both ends. |
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| Is the signal timing of the computer is within the spec. |
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| Is the video output level of the computer within the spec. |
| Display is too dark or too bright. |
| (assuming the CONTRAST and BRIGHTNESS controls |
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| has no effect.) |
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| Display is not in the center. |
| Is the signal timing of the computer is within the spec. |
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| Some graphic cards have their own positioning controls. | |
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| Display is shaking. |
| Is the power voltage is within the spec. |
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| Is the signal timing of the computer is within the spec. | |
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| Is the signal cable is properly connected at both ends. |
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| Is the signal timing of the computer is within the spec, or |
| Display is not synchronized. |
| there is a graphic card failure |
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| Is the video output level of the computer is within the |
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| spec. |
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Page 11
