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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: shaf on February 18, 2004, 03:07:55 PM
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Hello all,
A question for people who have repaired A4000's.
How easy is it to replace one of the FastRam Sockets
using a standard 25 Watt Soldering Iron ?
A friend asked me to repair his A4000 when I looked at it
the pins and side clips on the Fast Ram Socket closest to the Chip Ram Socket wre broken.
I have repaired older Amiga up to the A3000 but never done boardwork on the A4000.
Cheers
Shaf
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I don't know, but I will be attempting the same repair very soon! I'll be finding out!
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Post your findings! My spare 4000 has this problem, as well. I just rigged the chip in for temporary use, and thought to myself that I'd fix it the right way, later. ;-)
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My a4000 has all sockets except the chip ram socket broke I think the chip ram socket must have been replaced when a previous owner had it repaired by analogic.will be a slow repair lots of soldering. :-)
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I like to use a really-low-temp solder to make it easier to remove stuff, especially the power/ground plane points that are harder to desolder. I use stuff called ChipQuik for this, you basically solder it to the existing solder joints so that it mixes into the existing solder and reduces the melting point.
Now, grab a good desoldering tool and start sucking out all the solder, should be easier this way than without the low-temp mix stuff, reduces chances of lifting traces, and proceed as normal.
When soldering the new socket into place, use regular solder. The really low-temp stuff is just for removal, not for normal use.