Electronics Forum | Wed Sep 12 15:28:25 EDT 2001 | devajj
I have been asked to find a way to clean pc-boards (telecom)equipment covered with the dust and dirt from the Twin Tower destruction. Any Ideas??
Electronics Forum | Wed Sep 12 17:53:52 EDT 2001 | ksfacinelli
There is a company I used call disaster recovery specialists when we a water leak in a moisture controlled environment as well as insurance a clamn customer had during a fire. If it is just dust that typically can be cleaned if it is smoke or mois
Electronics Forum | Mon Jul 01 20:44:17 EDT 2002 | davef
Actually, the white res were caused by the water carrier in your Lonco 23F reacting with the res from the nc flux used to solder the component in place. Comments are: * Some nc flux res are cleanable, some are not. Your supplier [Alpha?] can probab
Electronics Forum | Wed Sep 27 20:11:19 EDT 2006 | davef
Help us understand your question better by answering the following: * What is a 'used PCBA'? [Are these boards returned from a customer?] * What is on these boards that needs to be cleaned? * How clean do the boards need to be? How is this cleanline
Electronics Forum | Mon Feb 19 22:56:20 EST 2007 | davef
Russ We agree with your comments on plugging from one side only. But... We believe that it IS possible to trap process chemicals [technically, not flux] in a blind [or any other] via. This can be done by plating the via closed, rather than pluggi
Electronics Forum | Fri Jun 03 04:16:27 EDT 2005 | Bryan She
Background: We use a thermal boards to setup/profiling the reflow oven for pilot run.and then daily verify the reflow profile with this thermal board.Now we phased into LF production,and the LF thermal board can only withstand 25~30 times reflow excu
Electronics Forum | Thu Oct 23 15:23:28 EDT 2025 | sarason
~100 mV on logic rails can break comms. • Inspect and reseat edge and ribbon connectors; clean oxidised contacts; verify chassis ground and shield continuity. 3. Comms layer sanity check • Trace the cable from the CPU/HMI to the module: many o
Electronics Forum | Thu Apr 03 09:27:04 EST 2003 | davef
First, welcome to SMTnet. On your question, are you talking about control charts? If so, here's some background on control charts http://deming.eng.clemson.edu/pub/tutorials/qctools/ccmain1.htm What are you plotting: * Independant variables? * De
Electronics Forum | Thu Nov 10 23:04:47 EST 2005 | davef
Background * The Facilities Manager�s Guide To ESD Flooring Materials http://www.conformity.com/0311the.pdf * Taking The Mystery Out Of Selecting ESD Flooring http://www.conformity.com/0212taking.pdf
Electronics Forum | Sun Oct 05 03:30:03 EDT 2003 | christ
Hi all, We found there were some non-clean residue left on the PCBA,in all likelihood,they were rosin which couldn't be soldered enough,so I wish all of you can give me hints how to clear them out during soldering by correct reflow profile. BEST
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