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How to test the logic board?

I've got a 2008 white macbook, I believe is the Penryn series processor. It will not power up in any way shape or form. I have tried to jump the power points on the logic board hoping it was just a power button, did not work :( I do get a bright green light on the magsafe adapter, and it will charge the battery, but that is all. I am an amateur with a multimeter, but when I use it on the power solder points, i do get a reading. I've tried a few of the other points and some give me readings, some do not. There are no burnt or otherwise damaged looking spots on the board itself. I was trying to see if someone had a schematic of the board that I could try a few points with the meter to see where the problem is? Or if anyone could just give me a few points to start checking, and what my readouts should read. Any help would be appreciated, would love to be able to solder a fix versus a $250 board repair. Thanks!

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4 Comments:

I'm stuck in the same place, but I'm not looking to try and test the voltage. Unlike yours, my battery won't charge.

I was just about to send my logic board out for repair and then noticed the MagSafe DC-In Board.

Now, I'm wondering if that can be the root of the problem. At $30, it's a lot less than a logic board repair.

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not to be mean but do you have a good electronics background? If you don't know what these components already are and how to find out if they are good or bad your wasting your time. Chip level repairs on any board require a strong background in electronics you'd be spinning your wheels to buy a new magsafe to find out there is also a resistor or capacitor that requires fine solder and having to buy a another board as a pull to fix that then to find out some other ic is damaged that you can't find a replacement for. Schematics won't get you to fix the board careful inspection and the right tools to tell you values and what kind of component it is will.

== Update ==

I included the answer

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John, I'm new here and the author of the original post stated he's an amateur. 

You opened by saying, "not to be mean", yet I didn't see anything helpful from your post. You simply pointed out what we were doing wrong. 

While I can't speak for the original poster, I would personally love help or constructive criticism when I post instead of just putting me down for my idea. 

While I appreciate you responding, 

please remember, we were all beginners once. 

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I stated that careful inspection of the board and having the right equipment to identify the component and wether it's good or not is the way to fix it, you need look closer to the answer.

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