hehe. speaking of not using a 25watt soldering iron.. i did.. i wound up soldering off the c721 connection for the 9001 psx model.. the one to the right of it works too, i soldered it off too. so i wound up tracing where it went to the chip near it and soldered it on to it. a VERY minute solder at that, my best accomplishment in soldering history.

use a FINE TIP 15watt soldering iron.