Delete comment from: Ken Shirriff's blog
Thanks for a very interesting disassembly and debugging session!
Great work.
It saved me from buying parts at ebay that probably wont fix my problem. This was more complicated than I thought. I started to test the charger on an other mac where it worked fine (leds shining bright) and suspected the small magsafe board inside the mac.
It seems to me that this is a very very weak design as so many people have trouble charging their macs including the one I'm trying to fix. I have never had any battery charging issue with a pc of any brand and I have had quite a few, only dead batteries so far.
In my case I bought a new mac battery and realized the magsafe should light during charging. In fact it does charge but very slowly (?) and can be monitored by the 8 led battery status indicator on the side (good Apple feature) and the green led is shining very faint if I take it all to a dark room. The screen tells me that it is not charging at all. Measuring the voltage at the small magsafe board inside the mac gives 17.04V and battery voltage 12.57V fully charged with charger connected (10.95V nominal).
Thanks again!
Bo in Finland
Apr 4, 2016, 1:59:06 PM
Posted to Teardown and exploration of Apple's Magsafe connector