SOURCE: Keyboard Sequence for Compaq 4-Port KVM Switch (Series 4115)
Mine uses the "Print Screen" for the menu & "Print Screen" + 1, 2, 3, or 4 for direct access.
SOURCE: when i press power bottom it does not start but
1. Take the battery out of the laptop & try to turn on the laptop using power adapter only. If the computer turns on, then the battery is defective & needs to be replaced.
2. Make sure the power adapter is not defective. Test the output voltage of the power adapter using a voltmeter. Compare the voltmeter reading to the nominal value written on the adapter or the laptop.
3. If you have another processor which is compatible with your laptop's model, try swapping processors & test to see if the laptop will work.
4. The power button could be bad.
5. The motherboard could be defective & needs to be replaced.
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