This Hobby Is Actually Useful!
elson at pico-systems.com
Sun Aug 2 10:28:15 CDT 2015
On 08/01/2015 09:40 PM, Chuck Guzis wrote:
> On 08/01/2015 07:05 PM, Jon Elson wrote:
>> When repairing CPU motherboards with bad caps, this is a
>> really big
>> problem. I dilute the lead-free solder with leaded
>> solder, this
>> helps lower the melting point to where two soldering
>> irons (one on
>> each side of the board) can be used to clear out the
>> holes. Those are multilayer boards, and way worse.
> Ever tried using a fusible alloy such as Chip-Quick? That
> can make things very easy to remove without overheating
> the PCB. (I use a plain old PAR38 120W spotlight/reflector
> to heat things up.
Diluting the tin solder with SnPb works quite well, I have
used this trick many times to fix boards with large ground
I don't do these sorts of repairs often, so I would lose
special stuff like Chip-Quick and never be able to find it.
Last batch, my boss volunteered me to re-cap a dozen Dell
PCs they were going to trash at work, WITHOUT consulting
with me first!
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