Chosen Solution
While using my mac I noticed green light on charger was not lite and sure enough battery has now run out and I cannot power on computer I have tested charger on different computer and tried other charger on my computer and charger seems fine I had read differ posts and thought it may have been the io board so I have installed a new board which I found quite easy thanks to the very detailed description from this site but charging or light has not been fixed I had previously spilt a small amount of water on keyboard but turn it upside very quickly but computer did not fire up at first but I dried out in sun and placed in a bag of rice and eventually computer came good and has been working great for at least a year I have noticed some small green corrosion marks near some connection on board Around the battery connection section of board which I have cleaned up with a fine brush after disconnecting battery Any info would be greatly appreciated as I enjoy trying to fix things but end to get my computer going again Thanks in advance Brad
Doesn’t look good here ;-{ You’ll need to completely remove the logic board to inspect the other side. I suspect the damage is there. If you’re lucky a little careful cleaning might bring your system back otherwise its time for a new logic board. The problem is the MOS-FET transistors which control the charging are likely blown as well as the voltage comparator logic from sorting out due to the corrosion.
