Options

(Post-logic board cleanup) PRAM issue Santa Rosa

So, after a liquid spill resulting in a completely nonfunctioning laptop, I dissected my late 2007 Santa Rosa white Macbook. I cleaned it all up, alcohol 91% as described on this site. Upon reassembly, Magsafe lights up, front white led lights up, fan runs, HD makes slight noise, USB has power, but no display or chime. The one problem I had was I accidently removed PRAM battery cable attachment from board. I glued (yeah, I know) it back on in its proper spot to keep it out of the way. The prongs are intact and possibly solderable (?) I'm unsure whether my board is toast or the PRAM issue is the source of my problem. Any fixes or should i just plan on replacing board? TIA.

Answer this question I have this problem too

Is this a good question?

Yes No
Score 0

5 Comments:

I'd start by fixing the PRAM issue first. Remove the glue and solder it, then determine what functions and what does not:-)

by

Thanks for your input, oldturkey. I've never soldered a board before, so not sure where to start there. Can you use any old soldering gun? Any special type of solder? I guess the root of the matter is: Can the lack of an intact connection there be the cause of the symptoms described above or are the two possibly unrelated? Is the lack of a functioning PRAM a hardware issue or a software issue as far as the machine having the capability to boot? Is there a hard and fast test to determine whether the board is gone? I found one list on this site, and some of them applied and some of them didn't. Sorry for so many questions, this is the first time I've tackled something like this. This is where my brain explodes. :) TIA again, Lor

by

Not sure how unrealted the PRAM setting is to your issue. Information stored in NVRAM / PRAM includes:

Speaker volume

Screen resolution

Startup disk selection

Recent kernel panic information. So looking at the schematic I would imagine that if the circuit is not properly closed, you may have trouble. I would definitely try to solder it first. No quick and dirty test to determine if it is the board. Unless one has the proper diagnostic tools and can measure the proper test points. Post an image of your damage with your question and lets see what is going on. It may help if we see what you see.

by

Not much to see. I pried up the PRAM battery cable connection from the wrong side and it lifted off the board with the base that it attaches to. That is, I pulled up the cable AND the piece that attaches to the board instead of just disconnecting the cable. No other damage to the board. The PRAM battery is intact on the opposite side of the board. Any suggestions on the soldering? I'm willing to give it a try, but thinking maybe should pay a pro for that part

by

If you have never soldered on a logic board before, it might be a good idea to get somebody to do that for you:-)

by

Add a comment