Electronics Forum | Tue Jul 29 03:32:19 EDT 2014 | cmchoue
The solder in MB become to yellowish after thermal test (100 oC/12HR) I think the problem that is flux residue and I really want to know the principle that why it color change Thanks!!
Electronics Forum | Thu Jul 31 15:14:59 EDT 2014 | kenkay
Turns out the seal was being broken from poor handling allowing moisture in. Thanks for all the info pointing me in the right direction!!
Electronics Forum | Wed Jul 30 11:55:09 EDT 2014 | matusov
I would consider to have mask in between the leads and have it open a little bit more than the copper Thank you. That is exactly what the NSMD pad is!
Electronics Forum | Wed Jul 30 12:25:38 EDT 2014 | emeto
Yes, but I have seen designs where the whole row of leads has no mask(which is also a NSMD)
Electronics Forum | Wed Aug 27 15:50:11 EDT 2014 | smtdoug
If at all possible, you definately want solder mask defined pads. Without it, you will struggle with solder bridging. This is especially important if you have a larger size board.
Electronics Forum | Wed Jul 30 13:02:56 EDT 2014 | proy
Through hole headers in long strips Anybody know of a tool/manual punch and separate these instead of sidecutters very slow....
Electronics Forum | Fri Aug 08 15:48:58 EDT 2014 | ppcbs
See this video on how to evaluate a BGA Rework Station before you purchase. Dennis has been doing actual hands on BGA Rework for over 20 years. http://youtu.be/MlvHLAbJ-o8
Electronics Forum | Thu Feb 12 17:54:26 EST 2015 | xboxhaxorz
Considering his budget, i dont think the PCB 112 will meet his needs unless he wins the lottery
Electronics Forum | Thu Jul 31 13:52:33 EDT 2014 | jimmyboz
I do not recognize that part. Initially, lets disregard that part and try to troubleshoot. DO NOT loosen any bolts associated with the Nozzle change mechanism, else your day, will get worse.
Electronics Forum | Fri Aug 01 06:54:22 EDT 2014 | tegel
Hi, I don't have any solution to the problem, but the component is an EMI-filter and not part of the machine. // Tegel
