Electronics Forum | Mon May 26 10:40:25 EDT 2008 | aj
Hi , The dirt you are seeing are fibres from the wave solder pallet. Clean the underside of the pallets aswell as cleaning the Pot. aj...
Electronics Forum | Wed Mar 24 15:10:23 EST 2004 | davef
Without a proper picture, I'd reject the parts that you describe based on IPC-A-610, 7.2, which says words to the effect: Defect - Class 1,2,3 - Dirt and particulate matter on assembly, eg, dirt, lint, dross, metallic particles, etc. Absence or pres
Electronics Forum | Thu Jun 23 10:36:04 EDT 2005 | stepheniii
I think the single most important thing will be to maintain positive pressure in the room. All the air filtering will not be able to keep up if dirt is blown into the room everytime a door is opened. The next would be to control as much as possible,
Electronics Forum | Thu May 26 09:21:37 EDT 2016 | bobpan
Everytime I have seen an offset like that it was dirt on the quad-align lens.....try cleaning it off with alcohol and a lint free cloth. If this does not fix it....you may have dirt inside the quad align itself. I am assuming you have checked to ma
Electronics Forum | Mon Sep 22 12:46:17 EDT 2003 | cyber_wolf
We had two of these machines. I have worked on many different types of equipment, and these machines were by far the most frustrating to work with. The calibration is a pain in the butt and it does not seem to do what it is supposed to. Also, the sof
Electronics Forum | Mon May 26 07:52:06 EDT 2008 | kenshiikeda
Hi mates, I encounter a problem on PCB after going thru the LeadFree Solder Wave. It shows so much dirt or dross on the PCB surface. I have attached the picture for more details. I have tried to scope out suspected solder dross and oxidedized solde
Electronics Forum | Thu Aug 16 14:29:00 EDT 2012 | bobpan
Sounds to me like a dirty quad-align. If you have cleaned the lens and have the same results then you may have dirt on the inside of the quad-align. The only fix is to replace it or blow it out with an air gun. Unfortunately it is not easy to tell if
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 | Thu Nov 01 13:01:16 EST 2001 | dave231
Ditto for what most people have said. If you have good equipment/ good data / 3 or more fiducals..everything should be OK. Maybe dirt or something got bang'd. tweaking is evil,but if nothing else works??? dave
Electronics Forum | Thu Jun 23 10:31:36 EDT 2005 | davef
We asked a similar question here on SMTnet a month or so ago. Major sources of dust and dirt are: * People * Packing materials * In-bound materials
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