Electronics Forum | Thu Oct 20 19:23:18 EDT 2011 | eadthem
As far as the buttons go, White = pause for inspection when depressed, lit when active Green = pass after inspection when lit you need to press the button, when flashing its waiting for the upline machine, Yellow/orange = when flashing indicates
Electronics Forum | Tue Sep 01 10:55:41 EDT 2015 | emeto
Hi, 1. Take a multi meter and measure the voltage - I assume it is a DC motor(probably 24V). If you don't, check power supply,cable, relays and Driver for the motor. If you do have voltage, check sensors(sometimes sensor activated may stop your con
Electronics Forum | Mon May 03 18:47:50 EDT 2021 | ttheis
One of our gsm machines has recently started activating the upline conveyor while the machine is working causing boards to double load. Has anyone seen this before or have suggestions where to start before I dig into schematics? Thanks
Electronics Forum | Fri May 28 12:57:16 EDT 2021 | cbart
does it only do this with one assembly or panel config? i have seen this when the sensor shoots through a hole in the pcb/panel. the machine sees the panel come in, but it either overshoots or moves slightly into the open area. if i remember correctl
Electronics Forum | Tue Dec 23 19:27:01 EST 2003 | davef
A more active flux may help, but if the nickel underplate on the component body is corroded [and not soldering], if could require a VERY active flux. Just an off-the-wall thought, are you sure that your heat recipe activates the flux properly? Slow
Electronics Forum | Thu Oct 28 11:41:21 EDT 2004 | Steve Stach
Hello Loz, Blue residues on circuit boards can be caused by copper corrosion, component body deterioration, marking permanently, and adhesive break down. In this case, a more subtle mechanism appears to be possible. This is a no clean application
Electronics Forum | Wed Aug 31 17:12:23 EDT 2016 | ttheis
Yeah, it's set to use SMEMA for down line. I have the conveyor conected to downline fmi on up500 (right side of machine,) but the Upline Ready light is activated on the up500 when the conveyor is ready and not the downline like I would expect to see.
Electronics Forum | Thu Jul 17 20:46:55 EDT 2008 | davef
Which type? * Solder beads (mid-chip solder balls, attached to the waste line of your chip caps and resistors) This is more paste volume related. * Solder balls that tend to be more randomly scattered (as in spattered)? This tends to be more profile
Electronics Forum | Wed Aug 31 09:45:36 EDT 2016 | ttheis
I have a smema conveyor connected to the downline fmi connection on my up500 but the fmi sugnals show the coneyor ready signal going ro the upline ready input (screenshot). The downline ready output is activated qhen a board is output from the printe
Electronics Forum | Tue Aug 21 08:44:48 EDT 2001 | caldon
A) The standoff height of some uBGA components does not allow water to penatrate under the component. B)Water soluable may dilute the flux and not remove it all together. This can be tested with Ion Chromatography. C) Water soluable in some cases ne
