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well, count me among the heat gun wielding unlucky. i have a small dog garage sale ibook that had the logic board issue which i could fix with a shim under the video chip. however, i wasn't satisfied with that solution long term. so i got myself a heat gun and was as careful as i knew how to be and - no go. previously a bit of pressure brought the ibook into fully working order but now it appears that the display is permanently out. my mistake? perhaps i heated the video chip too quickly but i'm just guessing.
anyone have a 700mhz ibook logic board thats looking for a home?
(didn't think so)
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Hate it when that happens. Probably best to just part it out.
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My guess would be that you didn't get it hot enough for a long enough period of time to reflow the solder.
I would say take another crack at it and don't be affraid to get the chip hot enough that you can smell the flux.
You have nothing to lose at this point by trying again...
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nah, its dead. definitely dead. grar. oh well.
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sell it to harbourmaster!
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>>did you insulate the rest of the board from the heat in any way?
yep. aluminum foil
>>Did you warm the board first so that rapid expansion wouldn't crack any components?
I tried to slowly lower the heat gun which should solve that issue. i don't believe any components cracked unless they cracked without my knowledge.
>>Did you use a conductor to focus to the heat on the specific spot that you wanted to heat up?
uhhhh....i didn't read about any method of doing that.
>>How did you ensure that the softened solder would flow into the joint?
the idea is that the soldier is already there and you just need to soften it to seal any cracks.
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> uhhhh....i didn't read about any method of doing that.
You missed the tea light story?
> the idea is that the soldier is already there and you just need to soften it to seal any cracks.
While it's possible that the issue is cracking, my understanding is that in many cases, the solder has actually separated from the board -- in which case it must liquefy and flow into the joint.
