Electronics Forum | Mon Nov 22 10:29:18 EST 1999 | Boca
Hany, Chartrain has some good points, if you product is expensive, what does the cost of a UPS amount to? Remember, you don't want to 'back up' the heating zones, just the controller and conveyor drive system so product doesn't get stuck in the oven
Electronics Forum | Wed May 04 22:04:55 EDT 2005 | davef
First, you cannot determine if this is "black pad" by looking at it. You must do laboratory analysis, either microsectioning or EDS. [But it sure sounds like "black pad."] Second, if it is black pad, it was created by the company that fabricated t
Electronics Forum | Mon Dec 04 18:29:47 EST 2006 | SWAG
Some production problems we've faced: 1) Delamination; 2) Reflow fixture distortion; 3) Obsolete parts; 4) Failure of blower motor bearings in older reflow ovens; 5) Poor toe fillets with miniSOTs on thicker PCB's; 6) Lack of updated component data s
Electronics Forum | Tue Jun 02 18:38:13 EDT 2009 | joeherz
Nicoleta, We're a CM and have produced many millions of solder joints with ENIG boards with no failure attributed to this surface finish. This represents several boards houses. Another poster is correct that any supplier you choose should have a c
Electronics Forum | Thu Jul 25 16:20:59 EDT 2019 | bobpan
Top red led is on or off depending on version of tep board. The green leds light when the transport sensor that it communitcates with is seeing a board over it. Tep controller init failure can be one of the following. 1. Check reseat tep card and
Electronics Forum | Thu Mar 24 23:34:55 EDT 2022 | glasscake
My Koh Young 3030VAL errors on the homing routine. The "DTool" "MCS" gives me an error "Before homing, X-AAxis already checked negative limit..." "Before Hoking, Y Axis already checked negative limit..." "Please turn off the control-power-switch, an
Electronics Forum | Thu Aug 08 11:04:48 EDT 2019 | btfonseca
Hi everyone, I was recently trying to troubleshoot a bad floppy driver on our QSV-1, which actually worked, I was able to read floppy drives but for some reason it all went downhill when one of the green LED's turned off and another red LED turned on
Electronics Forum | Mon Nov 22 17:32:34 EST 2004 | davef
Assemblers often assume that the board and component suppliers provide them with clean product. This was not a problem when everyone used water washable fluxes, because the water washing used to clean the flux residues also cleaned the board and com
Electronics Forum | Mon Jun 26 20:34:14 EDT 2000 | Dave F
Gary: Allow expand on this topic a bit. Back in the gray skied past when people wore calculators on their belts, rather than pagers n Palms, and didn�t drink California spill, they used HASS that you mentioned and HALT (Highly Accelerated Life Test
Electronics Forum | Tue Jun 12 18:06:17 EDT 2001 | davef
The criterion you use will depend on the test method you select. For minimum requirements, look at J-STD-001C, Para 8, "Cleanliness Requirements". I figure that you�d measure the residues on a lot of your current product, measure the res on a lot o
