i was wondering if anyone can give me some advice about removing the ba5815fm and replacing it? i noticed that is was a surface mount which i don't have much experience with but i have tons of soldering experience. i read over the post on "how to replace a ba chip" but i was wondering if there is anything else i should watch out for and also is there another way other then using a hack saw to remove the 2 middle heat sink pins cause it says that desoldering it is too much hassle.
forgot to include
i also forgot to say i am going to get the BA5815FM from a broken playstation 2 so any solutions that do not involve cutting the legs would help..
Getting the chip off without a de-soldering station could be tricky, that is if you want it in one piece :) You could try heating up the legs one by one, but get them hot enough so you actually lift the copper pads off of the board. This will of course damage the board, but as you're removing the chip I presume the board is knackered anyway.
Or you could buy a new BA5815FM :D
i could get a new BA5815FM but since i already have one on the old ps2 might as well try and see if i can use it for spare parts. well gonna try and heat up each leg and try to remove it that way to keep the chip intack to replace the broken one. thanks for you help
No problem, hope it works. Could you let me know how things go? Oh and when you heat the leg try and get the pad off the board using a scalpel or something similar as this should help move the pad once it lifts off the board. I don't think it should be too hard as the pads quite often come off if you doodle for too long while trying to make a join. I think the heat sink legs will be the hardest as they will take a lot of heat away, obviously!
Well i successfully removed the chip from my other PS2 MB without damaging the chip.. all that is left now is installing it
Before you do install this new BA on your working PS2, you better figure out why it burnt, or else you end up with a pair of burnt
BAs. You should check if the optical head has the focus/tracking coils short-circuited. they should measure something arround 5 OHM each. If it is lower than 2 Ohm it will both cause read errors and trouble with overheating on the BA chip. This can be easily noticed if the PS2, before completely stop reding, was working better in the vertical position. Changing the BA while the lenses have shot-circuited coils will end in another burnt BA.
what happened to short out the chip was the cable connecting the MB and the CD came loose and that shorted the chip