Electronics Forum | Mon Feb 05 17:39:53 EST 2007 | flipit
Remember, deionized water is very corosive. If the water is too deionized, 10 mega ohm, it will leach the ions from exposed metals. I had a stencil cleaner where the welds completely dissolved. The stainless steel tank was fine but the welds were
Electronics Forum | Mon Jan 29 20:23:43 EST 2007 | davef
Yes, many ICT can test your RS485 board. You need: * Test program * Test fixture OR you could buy a RS485 tester.
Electronics Forum | Mon Jan 29 07:44:53 EST 2007 | davef
On going from 24v to 18v, try: * Voltage regulator * Resistor divider * Transformer On not generating heat or loosing energy, the laws of physics already are pretty well fixed.
Electronics Forum | Thu Feb 01 16:50:26 EST 2007 | Ricky
A switching regulator should give you upwards of 85% efficiency. National Semiconductors 'Simple Switchers' are pretty good, and they have some good design tools on their site.
Electronics Forum | Mon Jan 29 10:46:14 EST 2007 | geb
What are ghost feeders? I've been creating a feeder for each slot and teaching each one individually before running a job. eg. Using an 8mm tape in slot 20 = "8mm Tapeslot20" or 12mm tape in slot 56 = "12mm Tapeslot56"
Electronics Forum | Mon Jan 29 11:02:29 EST 2007 | jaimebc
You may be creating more problems by teaching feeders. We use one type of 8mm for whatever amount of feeders we have loaded. You shouldn't have to teach 10-8mm feeders with 10 different feeder names. Use only one.
Electronics Forum | Mon Jan 29 11:55:46 EST 2007 | MGC
You might be wise to contact Universal's local office for support and or access to the required kits. http://www4.uic.com/wcms/WCMS2.nsf/index/Contact_Us_53.html#Western
Electronics Forum | Wed Jan 31 08:26:36 EST 2007 | geb
I think it might be the feeder banks, that is causing the problem. I've tried picking a SOT-23 component using head 2 spindles 1-4 from a rear feeder bank and it is picking off centre. Doing exactly the same, but putting the feeder in a front bank it
Electronics Forum | Mon Jan 29 10:41:10 EST 2007 | davef
Many high rel assemblers reball their LF BGA with SnPb balls. In other less demanding environments, SnPb paste with LF BGA produces acceptable reliability.
Electronics Forum | Tue Jan 30 13:26:07 EST 2007 | realchunks
Several paste manufacturers make an interim paste designed for such mixed applications. They work pretty good and give you the strongest joint available.
