John,

We have 4 Electrovert solder fountain systems, but suspect we would first
try using good old vacuum desoldering systems to remove the part, and
traditional soldering irons to replace it. The solder fountain systems may
be useful if the leads have heavy ground plane connections, but setup and
preparation for the solder fountain system may take longer that the
desolder/hand solder method.

You can see a little more about solder fountain rework on our website at:
http://www.circuittechctr.com/guides/8-1-2.htm


Jeff Ferry
CEO
Circuit Technology Center, Inc.
www.circuittechctr.com
[log in to unmask]
978-374-5000

Sign up for our Free E-mail Newsletter at:
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-----Original Message-----
From: John Fahey [mailto:[log in to unmask]]
Sent: Tuesday, October 23, 2001 12:33 PM
To: [log in to unmask]
Subject: [TN] Through Hole Oscillator Removal


Good Morning.

I have a PCB assembly where I need to remove a 4 pin through hole
oscillator and replace it with a different date code. (@5K units)

AirVac recommends that this removal be done by heating the bottom side via
a solder pot system to reflow the solder, remove the component, and replace
it with a new one.. Unfortunately, there are 3 capacitors on the bottom
side which lie in the vicinity of the through hole leads which would
necessitate a specially designed zozzle.

Does anyone have ANY other advice/recommendations for a system to
remove/replace through hole components from a PCBA. I am particularly
interested ina ny systems that can be leased as this is a one time usage
requirement.

As always, I appreciate your excellent advice.

Rgds,
John

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