Electronics Forum | Mon Aug 31 19:53:17 EDT 2020 | inspiredmorris20
thank you both, We removed the connections and cleaned them. unfortunately no success, we are testing the conveyor interface board to see if we have a bad board. additionally we found that power supply #3 and #4 do have 110v going in but do not have
Electronics Forum | Thu Oct 22 22:16:32 EDT 2020 | kumarb
The flat ribbon cable for the floppy drive is keyed and respectively, the RED STRIPE denotes pin # 1 on the Floppy Drive Connector. Do check that that is correct. As a simple test, remove the floppy drive and power up without the drive connected. D
Electronics Forum | Wed Mar 10 08:08:49 EST 2004 | paul_bmc
I am having issues with a CS-400E that I thought I might ask if anyone has any suggestions. The machine may run fine for a while then out of the blue the cutters stop responding or start responding erratically, you have to hit the esc key after ever
Electronics Forum | Thu Aug 30 13:22:47 EDT 2001 | arzu
180deg More important are the preheat and soakzones and temp ramps. How to check: I used to do it as follows: use a TEST-PCB with fixed thermocouples and connect it to the mole. Print the profile on transparant paper. do it again e.g. each week and
Electronics Forum | Mon Jun 11 21:56:41 EDT 2001 | davef
Continuing, I�ve optioned about the uselessness of shear testing of solder connections on this forum previously. So, the points that you make about the elusiveness of developing a standard for measuring solder connection strength is well taken. I�l
Electronics Forum | Mon Jan 15 14:25:54 EST 2001 | davef
Let me make several points on this issue � POINT 1: Let�s be basic � Soldering and welding are examples of process that the quality types call "special processes". Special process. The results of special processes cannot be verified fully by subs
Electronics Forum | Fri Aug 08 11:37:09 EDT 2008 | pjc
Yes, sure. In fact in some applications ICT is coming back. Mainly due to the fact that more and more SMT discrete components have no markings, so AOI cannot tell you if you have the correct value on the PCB. Fixed pin or flying probe ICT is a valuab
Electronics Forum | Wed Aug 23 09:05:38 EDT 2000 | Dave F
Dr. Lee: In using environmental screening tests to assess solder joint reliability, what are the effects that make low temperature vibration effective in screening of poorly wetted solder connections? What temperature and vibration profile are effe
Electronics Forum | Wed Mar 10 14:05:29 EST 2004 | dougt
The 400E has a computer on the bottom of the cabinet with a a Serial/Keyboard Card installed in it. J1 pins 19/20 are the cutters transmit/receive lines on this card, they go through a transition brd and on to the Cutter/Processor brd on the side do
Electronics Forum | Sat Dec 24 19:39:43 EST 2011 | dontfeedphils
I've reflowed many different size BGA's in an effort to better the connection and to help the board pass functional test. Using a middle of the road liquid flux and a convection spot rework machine and almost every time I would reflow a failed board
