The place to start is dealing with the liquid damage. If you don't have the residues from that cleaned up you are going to chase ghost and really can't actually determine if any parts are bad. Remove all power sources from your laptop. Push the power button for 10 seconds to help dissipate the capacitors. Then let it sit for an hour to ensure the capacitors have lost their charge. Next remove your motherboard and clean both sides of it 90% or better rubbing alcohol or distilled water and a tooth brush. All are obtainable from your Pharmacy. Be liberal with the distilled water or alcohol let it flow underneath the chips to wash away what is under them etc... Dry it off with paper towels and let it sit for a day to dry the parts you can't reach, like under ICs. You can use a hair dryer on no heat or a fan to expedite drying, but still let it sit over night. [guide|4314|Aguide for removing your motherboard is here.] My background is electronics. I am not an Apple guru. Reassemble your laptop give it a try. If this didn't solve your problem do what mayer is asking you to do.
+
The place to start is dealing with the liquid damage. If you don't have the residues from that cleaned up you are going to chase ghost and really can't actually determine if any parts are bad. Remove all power sources from your laptop. Push the power button for 10 seconds to help dissipate the capacitors. Then let it sit for an hour to ensure the capacitors have lost their charge. Next remove your motherboard and clean both sides of it 90% or better rubbing alcohol or distilled water and a tooth brush. All are obtainable from your Pharmacy. Be liberal with the distilled water or alcohol let it flow underneath the chips to wash away what is under them etc... Dry it off with paper towels and let it sit for a day to dry the parts you can't reach, like under ICs. You can use a hair dryer on no heat or a fan to expedite drying, but still let it sit over night. [guide|4314|A guide for removing your motherboard is here.] My background is electronics. I am not an Apple guru. Reassemble your laptop give it a try. If this didn't solve your problem do what mayer is asking you to do.
The place to start is dealing with the liquid damage. If you don't have the residues from that cleaned up you are going to chase ghost and really can't actually determine if any parts are bad. Remove all power sources from your laptop. Push the power button for 10 seconds to help dissipate the capacitors. Then let it sit for an hour to ensure the capacitors have lost their charge. Next remove your motherboard and clean both sides of it 90% or better rubbing alcohol or distilled water and a tooth brush. All are obtainable from your Pharmacy. Be liberal with the distilled water or alcohol let it flow underneath the chips to wash away what is under them etc... Dry it off with paper towels and let it sit for a day to dry the parts you can't reach, like under ICs. You can use a hair dryer on no heat or a fan to expedite drying, but still let it sit over night. [guide|4314|Aguide for removing your motherboard is here.] My background is electronics. I am not an Apple guru. Reassemble your laptop give it a try. If this didn't solve your problem do what mayer is asking you to do.