Electronics Forum | Thu Dec 22 16:12:51 EST 2005 | chunks
Off the Cuff Answer: Wow, nice big ugly connector! Thought we were the only ones using these things designed during the Korean war. Actually it really depends on the customers print. If they want conformal coating, they should know exactly where
Electronics Forum | Mon Dec 02 10:33:46 EST 2013 | sarivong0914
Hello all, We have a Samsung CP45FV Neo, and I'm having problems with the operating software. I have a PCB with 2 different rev's. Rev. A boards was programmed to run Vertical. Then Rev.B boards are horizontal but was programmed to run vertical.
Electronics Forum | Mon Apr 18 06:17:58 EDT 2016 | smtsparescn
If there are too many components on the board and many components are standing near the board edge,to use a depaneling machine is a simple way,but a machine is needed, another possible way is to design and make a simple fixture,it holds the board fi
Electronics Forum | Fri Feb 21 11:33:47 EST 2003 | Jaime
Call your glue manufacturer. It sounds to me that the epoxy is not curing properly. You should also test for shear strenght. How many pounds of pressure does it take to "pop" a cured component after it comes out of the oven? What type of oven do you
Electronics Forum | Wed Sep 16 07:18:20 EDT 1998 | smd
We're getting new SMT equipment! A flex machine and conveyors to boot. We have Simplimatic equipment now but I'm wondering about Lynx (I have the strong impression that Philips wants to deal) or this D-pace company? What's the 411 on these guys? Equ
Electronics Forum | Fri Jan 24 17:05:17 EST 2003 | Hoss67
DDave, I do not have the benefit of having the old machine here for comparison unfortunately. Comparing topside wetting to old sample boards run on the older machine show similar results. No solder balls. I have a thermal profiler and have run ma
Electronics Forum | Thu Aug 20 08:23:23 EDT 2009 | ratsalad
One diagnostic tool that I have found useful in the past is the "hot plate test". Place suspect components and/or PCB's on a hot plate and turn it on High. Then observe. Granted the conditions on the hot plate are not the same as in a reflow oven,
Electronics Forum | Mon Jul 13 06:30:59 EDT 2009 | hcarrasco
1.- Check your vacuum a.- Check filters b.- Check air flow (the vacuum is generated by a Ventury using air flow, not air pressure) c.- Vaccum vias (Possible linth inside the vacuum lines) 2.- Check the nozzle condition (Probably broken o
Electronics Forum | Fri Oct 23 03:29:24 EDT 1998 | TONY B
| | We currently using the Panasert SMT machine where PCB flow | | direction were from right to left, & we are planning to move | | in the FUJI -CP3 & CP4-2 in line where standard PCB | | flow direction were left to right. | | Any comment on FUJI mac
Electronics Forum | Fri Oct 08 14:01:27 EDT 1999 | C.K.
We've recently encountered this problem where one of our .050" pitch BGA's were reflowing at the wave thus causing shorts... The board was profiled with probes stuck to a QFP solder joint, an 0603, and one of the BGA joints. There was an almost 70
