MS3 processor pins soldered together? (pictures)
#7
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Having removed and replaced one of those processors, I can vouch for there being deliberately bridged pins. They are actually bridged on the board--small traces between the pads. They just happen to be somewhere that solder sticks and wicks up to look like a mistake.
#12
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desoldering wick sucked ***** to remove the whole thing at once. I tried that and also flooding each side with solder to conduct heat but it just made a mess.
I ended up using an exacto and cutting the pins on their vertical section and then desoldering the cut legs from the board with desoldering braid.
Other method would be to use one of the dedicated QFP desoldering dealies. Exacto was cheaper.
I ended up using an exacto and cutting the pins on their vertical section and then desoldering the cut legs from the board with desoldering braid.
Other method would be to use one of the dedicated QFP desoldering dealies. Exacto was cheaper.
#13
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Yeah you don'y use the desoldering wick to desolder the mcu, you apply lots of solder to the newly installed chip then use the wick to get rid of the excess solder and any solder bridging betweens pins. I have a soldering/desoldering station that works well for SMDs but not if the pitch is less than 1/20". You need special **** for that and I'm not that rich.
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Zaphod
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10-26-2018 11:00 PM