Electronics Forum | Thu Apr 17 10:44:24 EDT 2008 | rculpepp
I'd suspect contamination also, possibly from the board supplier. Sr. Tech's post mentioned what looks like a blister on the board, in the upper right of the Q19 photo. This could very well be a contaminate from the PWB fab shop. I've seen similar pr
Electronics Forum | Fri May 02 18:40:03 EDT 2008 | jlawson
Has anyone tried a PS-800E made by OKi Metcal? I > have been looking at them, it looks like a good > Iron, but I would like to know how these are > actually working in the field not just some sales > pitch by someone getting a > commision. Thank
Electronics Forum | Wed Jun 18 07:49:06 EDT 2008 | more_sunshine
hi i'm not experienced in creating pcbs but i have good background, and i have a bunch of questions. i have no access to world wide known pcb chemicals but i managed to get a cramolin positiv spray and i don't know if it is still usable or not? (di
Electronics Forum | Thu Jul 03 09:32:32 EDT 2008 | realchunks
Well, when facts and data become "complaining' and "scare-tactics", it's pointless to carry on a conversation. You might as well twist tin whiskers so that it becomes a GOOD thing. "Just say YES and we'll move on!" http://www.funnyordie.com/vide
Electronics Forum | Thu Jul 03 19:27:54 EDT 2008 | proy
5 Zone HVA70 Oven Board 6 layer, 10" x 13" lots of space, most critical is 100 pin QFP AIM Water Soluble 487 Tin Lead paste on SN100C HASL boards This board is giving me disproportionate grief! I am running 23 in / min which gives me about 3.1 mi
Electronics Forum | Thu Oct 02 16:22:46 EDT 2008 | davef
Not all paste formulators offer suggestions on handling the storage of opened paste jars, but some do. Here's a couple. Storing Opened Solder Paste Containers * Once a jar or cartridge has been opened it should not be re-refrigerated. If solder past
Electronics Forum | Mon Dec 15 16:16:42 EST 2008 | davef
J-STD-001 requires that solderable surfaces of components and connectors be degolded prior to soldering. As proven methods for removal of the gold plating and replacing it with tin/lead, MIL-STD-2000 and J-STD-001 endorse[d] either: * Double dip (two
Electronics Forum | Sat Mar 14 09:12:59 EDT 2009 | davef
First, there is no good justification for getting solder on gold fingers. Second, it is well known that solder on gold fingers is unacceptable. So, shipping boards with that condition indicates sloppy quality practices at your CM. Third, that being
Electronics Forum | Fri Sep 18 11:23:32 EDT 2009 | isd_jwendell
I know nothing about Xbox specific rework, but have a lot of experience with PCB repairs. "...maybe think its a bad idea now not knowing what im doing" Don't get discouraged, it's a learning process. If it was that easy everyone would be doing it.
Electronics Forum | Fri May 07 00:52:24 EDT 2010 | boardhouse
Hi Derek, just curious of one thing - are the vias within the BGA's the only vias covered or are all vias on the board covered. Just trying to figure out what is making this area different from the rest of the board. Regarding leaching, I do not be