desoldering problems and technique (and amiga 2000 mod)

[Brian Lanning]

On Sun, Jan 3, 2010 at 6:46 PM, Dan Roganti <ragooman at comcast.net> wrote:
> What I do is add extra heat on the opposite side using an extra pencil tip
> solder iron , hold the board vertically[or use a vise], it helps control the
> action this way, and preheat the other side with the desolder iron [with the
> bulb squeezed tightly] for several seconds and then release. This also helps
> with the stubborn power pins on any DIP package.

In this case, there's plastic in the way on the component side.
Adding heat did the trick though.  I went out into the garage and
grabbed my propane torch (1 quart bottle size).  I used it to heat the
tip of the desoldering iron.  That made the process go much faster
since the solder melted instantly.  Then when I tried to pull out the
part, I heated the solder side of the board.  That let the part fall
out.  Works great when you don't care about ruining the circuit board.
 :-)

The 16-bit part of the isa connector was attached to the 8-bit part.
I used a bandsaw to cut through the connectors and free the half I
needed.

Now it's time to solder the isa connectors to the 2000 motherboard.
It's the scary part for me.  :-)

brian