The laptop goes off when held by the left hand side

Try holding down the power key to force it to power off. Power it back up again and you should get the Windows Resume Loader with the following options "Continue with resume" and "Delete resume data and continue with startup". I can't remember the exact wording of the options, it may be different but you need to select the later or second option "Delete resume data and continue with startup".

you should check its its inverter board. it may need replacement though.
thanks for using fixya

Bad inverter?

To eject a CD from a Macintosh, start from power-off. Press the power button, and immediately hold down the trackpad button. Continue to hold the button until you hear the optical drive eject, or try to eject. If the CD does not eject successfully, then it is physically stuck, which is a different issue and requires professional service, which may involve replacement of the optical drive.

That is the fan making noise if it is under warranty take to a sony service centre otherwise it is not a difficult job to replace you just need to take out all screws on bottom making sure you note where each goes as there are different types,then fan assy is held in by 6 screws and 1 connector.

Here ya go
http://support.dell.com/support/edocs/systems/latd600/en/sm/hdd.htm#1123687

Press and hold the resume button - the one on the right hand side

open printer. with gloves or unless you don't mind getting your hands dirty, Open top of printer lid, carefully, pull out spongey grey piece at bottom of printer. to your left side is a piece of plastic, pull that off and below it is another sponge. Carefully pull this out as well. Wash and squeeze excess water. replace. YOU MAY WANT TO USE A FLASHLIGHT TO BE SURE YOU CAN SEE WHAT YOU ARE DOING. UNplug printer, hold button. restart, release button - as described above. Keep trying. Then do a bottom plate cleaning. keep trying eventually everything resets and you can continue working. To remove ink from hands and plastic, use alcohol.

then you will need to reset it this works on some canon printers not all

1. Turn off printer
2. Hold down Resume button and press Power button.
3. Keep holding down Power button and let Resume button go.
4. Press Resume button 2 times then let BOTH buttons go.
5. Green lights will flash and then stop blinking.
6. When green lights are solid, press the Resume button 4 times.
7. Press the Power button and the printer should turn off, if not,
press the Power button once more.
8. Your printer should respond as normal..
Good luck

This might work
Error Code 6502 appears generally after chaging a cartridge.

Solution:

1. Unplug the printer.
2. Remove the faulty Cartridge
3. Plug in the printer and press and hold power button
4. Keep it held down. Press Resume twice, and this should reset the fault.

All Best: Pineworks

For error 5100 try the following, I know it works on some Canon printers:
Unplug printer, press and hold "resume" button, press "power" button and hold down, release "resume", press "resume", release and press again. Release both buttons and now press "resume" 4 times. Power off. Re-start.
Hope this helps.
Norman