I have no idea, but at least you made the right choice of Mac over PC.
It is very simple to change the keyboard on this model. The Acer 5720z is a fairly good laptop having a good life. First: Remove Battery Remove the 3 M2.5x4 screws as this will allow you to remove the top cover at the rear of the keyboard allowing you easy access to the keyboard. Be careful when prying off the cover as to much pressure will break the plastic. Once the rear cover is removed, remove the keyboard and pull out the ribbon cable attaching the keyboard to the motherboard. Install the keyboard and put it back together.
Make sure you have no power going to the laptop, remove the power adapter and battery before starting. You'll need a Phillips screw driver, to remove the old keyboard. Unplug the old keyboard and plug the new one in making sure the groves match up. screw the keyboard screws and you are done.
The panel where the regulator is detachable. You will be able to remove it very easily. When you remove the panel you will see the way how the regulator can be replaced.
Remove the wires from the starter. Remove the retaining bolts. The starter will easily come out. Reverse the process to install the new starter.
You can't.
Just remove sidings from the door (inside), then remove all bolts you will see, i think 6 pcs. then you can easily figure it out how you will remove the motor from the door shell.
The cam shaft position sensor is located under the distributor cap. You can replace this easily by undoing the screws holding on the distributor cap, remove and replace the sensor, then just replace the distributor cap.
remove the radiator expansion tank (no need to remove water hoses ). pump is now easily removed by pulling straight up.
First, remove the windshield wipers. Then you can remove the cowel just in front of the windshield. There are a bunch of screws connecting it to the firewall. Once you remove this, close the hood. Now everything is easily accessible and the rest is intuitive. Replace everything by using the opposite procedure.
To replace a deck lift cable on a cub cadet lawn mower you can easily remove the two bolts underneath the deck that hold the lift cable in place and then replace the cable.
Find the idler tensioner pulley and retract it. You then will be able to easily remove and replace the belt.
It taps into your bell housing, behind where the motor meets the tranny, it is right above your cross member, you can remove the cross member and get to it very easily, you do not have to remove it to replace it though