[doecraig]

I have a HP zt1000 laptop.. when I plug in the power supply the light turn yellow and orange It will not go to green or turn the computer on... Thank you.. Doe

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Sorry if I'm stating the obvious here, but afetr connecting up the mains lead you must press the round (silver?) power button on the keyboard panel to boot up the laptop.

[pip22]

Sorry if I'm stating the obvious here, but afetr connecting up the mains lead you must press the round (silver?) power button on the keyboard panel to boot up the laptop.

[doecraig]

Yes, I know how to turn on a computer........ It looks like its charging... one yellow light and one orange light!!! So I"m assuming it's getting power!!! But thats all it does.... Thanks.. Doe

[macten]

shutdown, unplug, remove battery.

press power button for 30 seconds and release.

leave the battery out, plug it in

try and boot it up....anything?

[doecraig]

Still nothing.... yellow & orange lights come on..... Thanks.....

[macten]

Well if it were me, I would check the output voltage of the power transformer with a voltmeter. The output voltage should be written on the transformer. For instance...I just checked my Gateway transformer and it says output voltage is 19 volts. I set my voltmeter to DC Volts and placed the red lead (+) in the hole and the black lead (-) on the outside of the 'jack' (whatever you call the part that you push into the laptop). My reading was 19.42 V DC.