Electronics Forum | Wed Aug 08 14:27:00 EDT 2012 | hegemon
Vapor soldering has some advantages for heavy boards, especially in energy transfer to the board and solder. The soldering temperature is fixed by the boiling point of the liquid used, and will not exceed that temperature, another advantage. The tr
Electronics Forum | Mon Aug 27 12:31:04 EDT 2012 | rway
Its no my turn to give some advise. My first > question would be can you put the boards into a > carrier of some sort. There are many wonderful > companies that make carriers that are ment for > running down a smt line. This can be expensive > u
Electronics Forum | Tue Sep 25 05:58:16 EDT 2012 | bobpan
I believe the Led's should flash 3 times when the card is booting up/ powering up normally. There was no board troubleshooting back in the day and we just replaced the card. Make sure the metal cover is grounded to the machine.....this sometimes caus
Electronics Forum | Tue Sep 25 13:03:19 EDT 2012 | saduquette
Thanks bobpan. As we're a real small shop, I'd like to try and repair the board myself. Does anyone know where I can get a set of maintenance/repair manuals for a Quad 4C? At least the schematics for the Quad Align board would help for
Electronics Forum | Sun Sep 30 07:39:00 EDT 2012 | saduquette
Hi bobpan, Just wanted to follow up on my problem. With a bit of reverse engineering, I was able to troubleshhot my board to a faulty trace between the EEPROM and DSP chip. Since it was an 'inner layer' trace I had no choice but to 'green wire' i
Electronics Forum | Wed Sep 26 14:18:50 EDT 2012 | tank
Wondering how good the software is for the Quad QSA 30 is. Is it a pain to program? We have panels with 100 boards... 1500 parts, I hope you don't have to manually teach the whole panelized board. Any other info you can provide is welcome. We
Electronics Forum | Thu Jan 31 11:09:38 EST 2013 | emeto
Hello folks, we would in certain cases run a PCB second time through reflow. I never trusted a board that is reflowed multiple times and I wonder am I really right? Can we reflow boards multiple times? What are the limits? Does it depend on the PCB
Electronics Forum | Fri Feb 01 14:49:52 EST 2013 | emeto
Thank you guys. You keep adding valuable information here. I think we will try to stick with the 3 times reflow(if we count the BGA repair as 2 reflows). However sometimes we will run the board second time through the oven(just flux the suspect part
Electronics Forum | Thu Feb 07 13:53:38 EST 2013 | hegemon
I would consider wave solder as a cycle, in that for the most part the entire board is subject to the wave. Selective Solder is a gray area in that regard, since you will be hitting one or more locations, that in total do not comprise a large percen
Electronics Forum | Wed Feb 20 13:24:56 EST 2013 | dyoungquist
If you stop when the first completed PCB of the next run goes in the oven, wouldn't you be including the loading time for that PCB in your change over time? Wouldn't change over time be from the time your p-n-p machine stops loading the last board o