19 Nov
2006
19 Nov
'06
1:35 p.m.
At 8:01 PM +0000 11/18/06, Gordon JC Pearce wrote:
Chuck Guzis wrote:
I've used a propane torch to preheat the board, then whack it solder
side down to blow the solder off, then flip over and whack on the
component side to remove most of the ICs.
Not the best, but it IS fast and usually results in recoverable ICs.
John :-#)#
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On 16 Nov 2006 at 13:44, Chris M wrote:
I've always found that if the board isn't important but the chip is,
a quick blast with the hot-air paint stripper will desolder it quite
well.
Often you can just pull the chip out with your fingers, because it
stays fairly cool. If it really doesn't want to come out, tap it on
a piece of wood and it will drop out.
Gordon. Or desolder it from a CGA card or any other IBM
compatible with built in video. I recommend a cool
water wave tank for the process.
You know, when desoldering a chip such as a 40-pin DIP like the
6545, I've never gotten the chip body anywhere near being too hot
to touch. As a matter of fact, I'd worry that the water would
conduct too much heat away from the chip to allow the PCB solder to
melt quickly.