I recently bought a new battery and power supply for my iBook G4. But shortly after using the new equipment, the battery stopped recharging and I had to hold the power supply connector at an angle to the computer (or the DC-in board).
I replaced the DC-in board using the guide. Went very smoothly.
I don't open up my computers too often...Usually there aren't too many problems. I don't know much about the tape that is used inside these laptops. A friend said to use non conductive tape. I used some artist tape that I have...it isn't supposed to leave any gunk behind. Beats me if that is right or not but it made sense to me.