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The problem is probably not the power button. If you have the AC adapter plugged in but you do not see any lights indicating that there is power reaching the laptop (such as the light that indicates that the battery is charging), chances are that you have a bad motherboard. The other possibility is that you have a broken DC power jack (where the AC adapter plugs into the laptop). Neither the motherboard nor the power jack are user-repairable issues. My advice would be to take this unit to a local professional computer repair center and have it evaluated.
Please 1. unplug the ac adapter, detach the main battery, press the power button for 15 seconds, plug in the ac adapter, and restart your laptop. If the problem persist: 2.unplug the ac adapter, detach the main battery, press the power button for 15 seconds, take out the hard drive, plug in the ac adapter, and restart your laptop. If the problem persist, then it means that the laptop motherboard is dying. Please read your laptop's service manual before you open the laptop's case/body.
Hi. Try to remove the battery, unplug the ac adapter and press/hold the power button for 10 seconds then plug the ac adapter in. do not put thebattery back in yet. turn the computer on and see what will happen.
If nothing happens, your motherboard needs to be replaced.
Turn off the system
remove the AC Adapter and all 3rd party devices if there is?
Remove the battery
press and hold the power button for 1 minute
plugged back in the AC Adapter and battery
turned on the computer
Sorry to tell you this but you may have a problem with the charging system. That will require you to return it to Acer or an Acer service center. You can also try this. I got this from Acers' travelmate support website:
If the notebook does not power on:
Make sure the ac adapter is correctly plugged into the notebook and into the power cord.
If everything is plugged in correctly and it still will not power on, follow these steps to complete a ‘power reset' of the notebook.
Unplug the ac adapter. Keep ac adapter unplugged.
Remove the battery and keep the battery unplugged.
Hold the power button down for 15-20 seconds. (Nothing will appear on the display and none of the lights will light up.)
Release the power button and plug in the ac adapter ONLY. (Please note that a power indicator light should be lit on the ac adapter when it is plugged in).
Normally power on the notebook.
If the unit does not power on, remove the ac adapter and insert the battery into the system.
Plug the ac adapter back into the system, the battery charging indicator light will light up. If the battery charging indicator light does not light up, the ac adapter may not be providing proper power to the unit, and may need to be replaced.
You can aslo google your specific model of Travelmate to see if others are having this issue.
changing or swapping engine should have no effect on ac unit if you have everything plug back in correctly. I replace my engine also and plug everything back in with no problems. when you press the ac button does it light up? if not than you have no power to the switch and to clutch/compressor. take a meter tester to see if any power going to the compressor when the ac button is on position and also to the ac button. if not check your relay see if its good and test the plug where the relay plug in to see if any current flow though it. I suggest to pick up Chilton manual repair book from auto zone or pep boys for schematic.
The problem could be your bezel. Remove the 3 screws from the hinges from the rear and you will be able to remove the black strip above the keyboard (after removing the screws, make sure laptop is layed wide open) once removed, press the button on the motherboard under where the power button is. If the unit still does not power up, then your motherboard is bad and needs to be replaced. If it does power up, you need to replace the bezel.
You know I had a problem like that at sometime back and I found that the CPU unit had come loose I dont how but it did so I pust it back in solid and away everything went. Cost nothing to try just you ego......goodluck