Electronics Forum: backing (Page 357 of 420)

Capacitor marking

Electronics Forum | Fri Sep 07 16:10:07 EDT 2012 | ericrr

HO what a BIG twit I am, for wasting your time (and a few hours myself trying many options on google). It is not EG84 it must be E684, (I will have another look next time I go back to work) you see I know the value, I thought it was a new secret co

warped boarf after reflowing

Electronics Forum | Mon Sep 17 06:11:41 EDT 2012 | kq702

Hi I did a reflow on a laptop board and after the reflow the board is warped in the area I did the reflow in, and now the laptop screen does not turn on at all when I put it back into the laptop. Original problem was the wifi (I did the reflow more o

SMT voiding

Electronics Forum | Tue Sep 25 15:54:55 EDT 2012 | davef

The more that I chew the idea of outgassing through the pad theory, the less I like it. Why would something, water???, choose to outgass through the pad when moving through the solder mask would be a path of much less resistance? And why wouldn't the

SMT - PCB combo process

Electronics Forum | Mon Oct 15 08:15:41 EDT 2012 | scottp

Is the designer's concern that the parts will fall off when hanging upside down during reflow? We've been doing this for decades and our test if we think a part is marginal is to glue a 2nd (and sometimes 3rd) part to the back and send it through re

safety?

Electronics Forum | Fri Dec 07 12:14:18 EST 2012 | sarason

A few years back I got a splinter of steel in my eye which destroyed my super good eyesight. Which now means it is difficult for me to work in electronics. The pain of steel was difficult to explain but, a year earlier I had a nail shot into my finge

Quad 4c Sequence lead inspection electrical test qa...

Electronics Forum | Tue Mar 12 07:46:26 EDT 2013 | ngineer

bobpan, It only happens with this program. CC ver 7.54, IVC V 3.05 If i leave CC out of it, and edit the sequence using the HHT, it sticks. but if i download from the assembler to CC, it's messed up. if i then fix it in CC, the minute i save

Solder Pot Draining

Electronics Forum | Wed Mar 20 16:10:27 EDT 2013 | woodsmt

Most pots have a drain system, but that is a scary thing to use. I have seen places that have plumbed it nicely with ball valves and such to control the flow into small containers, but still fraught with danger. I use small metal bread pans. I lad

Quad IVc AutoProgram

Electronics Forum | Fri Apr 12 19:20:25 EDT 2013 | microaide

Some progress, now stuck again. I can now generate a pick and place program for two heads that actually runs the head 1 program when loaded into the central controller of machine #1. But all attempts at getting machine #2 to run the head 2 program ha

Quad IVc AutoProgram

Electronics Forum | Wed Apr 17 16:51:55 EDT 2013 | gosswald

I have not been on this site for a while but I was reading your post on Autoprgram. I have had my share of fun with this program getting a Quad 2C to run I purchased a while back. I had originally tried the DosBox approach but ran into all kinds of

Delta T

Electronics Forum | Tue May 21 09:06:03 EDT 2013 | hussman

Delta-T in reflow generally means 2 things - difference in temperature on a product or difference in temperature of your oven. Delta-T on a product is what are your hottest and coolest areas on the board. Larger parts toward the middle of the boar


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