Repairing Ram Sockets on the A4000

[shaf]

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

[redrumloa]

I don't know, but I will be attempting the same repair very soon! I'll be finding out!

[Ilwrath]

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.  ;-)

[amigamad]

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. :-)

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.