Electronics Forum | Sun Jan 25 17:40:16 EST 2009 | cuperpeter
Hello All, I have a problem with nonwetting Au finish after second cycle of reflow soldering doublesided boards. Solder nonwetted pcb pads (is wicked to component terminations) Either these pads or some of non component pads became discoloured from
Electronics Forum | Tue Feb 03 16:42:50 EST 2009 | cuperpeter
Hello All, > > I have a problem with nonwetting Au > finish after second cycle of reflow soldering > doublesided boards. Solder nonwetted pcb pads (is > wicked to component terminations) Either these > pads or some of non component pads became
Electronics Forum | Thu May 14 22:45:46 EDT 2009 | davef
You're correct. It's a peculiar looking defect. With measling, we expect to see discrete white spots or crosses just below the surface of the base material. We don't see that here. We do see a similar condition at almost every PTH in the picture, a
Electronics Forum | Thu Nov 04 19:55:49 EDT 2010 | eadthem
The best method i have for the few lifted/bent lead issues we have is i use a ic/bridge inspector with all its default options to check for bridges and solder at the tip. then i add a solder inspector but this time accrost all pins at the downslope o
Electronics Forum | Wed Oct 20 07:59:34 EDT 2010 | gallionc
After 16 years in the industry, I have honestly never heard of putting wax in a solder pot. Anyway, I do have some experience with Treiber wave solder machines, and as I recall, the air-driven pumps are a nightmare to service. First of all, make su
Electronics Forum | Thu Oct 21 10:50:27 EDT 2010 | methos1979
I had a benchtop Yestech demo until for a couple weeks. It was a very good machine. I particularly liked the RGB light system which gave a good visual representation of solder fillets. There was software that allowed you to evaluate based on the p
Electronics Forum | Fri Jan 07 01:36:46 EST 2011 | jeffr
David, Assuming your machine has a WHITE controler, not a SILVER controler, there is a floppy drive inside the front panel of the controler. (Remove the top cover to reach the 50pin cable.) If Tom offers you a disk to try in the machine, go ahead. T
Electronics Forum | Fri Aug 12 08:13:12 EDT 2011 | rway
The only thing I see that might be a fuse is the green vertical axial leaded component next to the third from the bottom white 4-pin header. It's labeled ?718 or 710. I don't know if this is a resistor or a pico fuse. You can try to ohm it out. An
Electronics Forum | Mon Nov 07 19:33:10 EST 2011 | swag
We have four pick and place machines all exibiting a residue that seems to build up over time on wiring and electrical components. This residue appears as a white haze on wiring, caps and fuses (these are the components where it is most obvious). Y
Electronics Forum | Mon Jan 16 00:47:47 EST 2012 | ngineer
I have two new quad feeder bases and feeders (my machine came with none to start, and I can't find any electrical information on them. I have 4 pins at the each end (total of 4 connectors. And are in a 4 pin connector which looks identical to a sta
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