Electronics Forum | Fri Jun 15 11:34:49 EDT 2007 | cman
What is the board finish? Did you profile built assy and get the temps on the board with a t/c in the board? DId you drill the BGA and get the t/c at the ball? When the parts came off the board did all of hte solder come off the pads and stay with th
Electronics Forum | Sat Jun 16 02:44:21 EDT 2007 | gsala
Hi Grant, it seams your PCBs are ENIG (Gold)finished, correct? If yes, did you considered the quality of PCB, for istance are you sure are there any black pad evidence on BGA pads? When BGA drops away like that, one of the potential cause can be a
Electronics Forum | Sat Jun 16 07:48:09 EDT 2007 | grantp
Hi, We are using emerson gold, and I have not seen any evidence of black pad, as the pads are clean and gold colored when the part comes off. That is what worried me, as I would have thought that if the solder melted correctly, it would have stuck t
Electronics Forum | Mon Jun 18 10:20:14 EDT 2007 | ck_the_flip
Grant, i have heard of a few cases where the PCB is "reworked" by the PCB house, where the immersion silver that did not wet to the base copper was reworked by just putting immersion silver on top of the non-wetted immersion silver. I know your PCB
Electronics Forum | Sat Jun 16 09:18:56 EDT 2007 | fasterstill
Hi Guys Looking for someone to build me a circuit to drive a piezo. Requirments: up to 30v output from 12v supply, prob tranny on output. frequency range 15-38khz, only one output frequency required at a time but the ability to tune to anywhere betw
Electronics Forum | Sun Jun 17 04:47:09 EDT 2007 | mika
Hi, I understand the need for an authentic verification of a real person posting a thread, but why must one verify it on every posting? Is it not enough to verify ones member e-mail; once and for all? The most irritating is that if I misprint the "tw
Electronics Forum | Mon Jun 18 08:38:41 EDT 2007 | babe7362000
I need the passwords to mpm Up2500 Stencil printer. I have the supervisor one, but my coworker took the rest with him when he left. If anyone could give me the default ones, that would be great. I am trying to get everything done before vacation t
Electronics Forum | Tue Jun 19 11:28:10 EDT 2007 | kpm135
I am fairly new to the MYData machine. The TP11 we have just started generating the following error: W-MIPR-20:System voltage BATTERY measured 14.59V (outside limits). After talking with the operators and reading the manual I believe the problem may
Electronics Forum | Wed Jun 20 07:59:56 EDT 2007 | avalancher
The issue you are seeing is in fact the Battery that is in your machine. It looks like a motorcycle battery. It is usually located somewhere in or around your power supply. It should be reading an output of 18V. This battery is used in the event of a
Electronics Forum | Wed Jun 27 18:10:34 EDT 2007 | kpm135
Just thought I'd let you know the problem was the Batteries. There happened to be three 6 volt 10 Ah batteries hooked in series that were no longer holding voltage. Also we ended up replacing the MI board because there was a fried component on it. Do