
Troubleshooting
English
Problem | Solution |
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| Display |
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Computer does not turn on. | If using AC power, check that the AC adapter is securely con- |
| nected to the computer and the power cord is plugged into a |
| working electrical outlet. |
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| If using battery power, check that the battery is charged. |
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Computer turns on, but | Confirm that the screen brightness level is not at its minimum |
there is no screen image. | setting. (To increase brightness, press Fn +F7.) |
| If using battery power, check that the battery is installed |
| correctly. |
| If using AC power, check that the AC adapter is connected to |
| the computer and the power cord is plugged into a working |
| electrical outlet. |
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Screen goes blank while | Screen saver may be enabled; touch the touchpad or any key to |
the computer is on. | exit screen saver mode. |
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| If power management is enabled, the computer may have en- |
| tered sleep mode. Press the power button to exit sleep mode. |
| Keyboard |
A number appears when | The numeric lock function is enabled. To disable it, press Fn + |
you enter a letter. | Insert. |
All or some of the keys | Make sure that the external numeric keypad is securely con- |
on the external numeric | nected to the computer. |
keypad do not work. |
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| Sleep/Hibernation Mode |
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The computer enters sleep | Check that the battery is charged. |
mode unexpectedly. |
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Page 22 | Coby Electronics Corporation |
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