Pismo will not recoginize AC adaptor

Hi, My pismo is not recharging. I have tried two different AC adaptors with no luck. I suspect the AC jack has worked itself loose and needs to be resoldered. ?? Does this sound right?? Is soldering this bit difficult or can you purchase new/use sound AC cards easiely? Is this difficult area to access? I'm not a super user but, I have swapped out LCD screens before.
Any tips would be greatly appreciated!!!
Thanks,
Larry
powerbook g3 500mhz Mac OS X (10.4.2)
powerbook g3 500mhz   Mac OS X (10.4.2)  

If you have banged the plug while it was inserted in the jack, or sometimes "just because" the solder joint can fracture. The repair is a cinch if you can sloder. Getting to it is a minor horror, and does require at least one special tool: a long, slender Torx T-8 driver. Note that a 1/4" adapter bit will not do, it must be longer and more slender than that.
This vendor has posted illustrated guides that make it look easy, in the hopes that you will buy their parts and services.
http://www.pbfixit.com/Guide/
The Power Inlet is on the Sound card, and the procedure has 21 steps. It is not a cinch. If you do not have a calm temperament and deal easily with complexity, I recommend you leave this repair to someone who has experience doing these repairs.
Read carefully and print out the guide before you begin.
The major pitfall with these repairs is that there are a lot of fasteners, and they will all look alike later. You must very carefully and methodically keep track of where each fastener came from.
A second problem is that tiny static charges (far smaller than the Zap from the carpet) can ruin your PowerBook while its guts are exposed -- a grounding strap is essential while performing these repairs. Commercial straps use an internal about 1 megOhm resistance to ground, not a "wired" connection.

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