Electronics Forum: pass (Page 46 of 142)

Motherboard become NO POST when humidity increase to 90%

Electronics Forum | Fri Nov 20 14:50:13 EST 2009 | davef

One of our instruments has a high impedance front-end. We: * Passed functional test in the environmentally controlled shop. * Failed test, on the same unit, while carrying it to burn-in chambers in an uncontrolled part of the plant. Solder flux resi

Mixing No-clean and water soluble processes

Electronics Forum | Thu Feb 25 15:24:58 EST 2010 | jdumont

We use the OM-5100 and wash it with relatively good results. Just dont let it sit longer than a few days before wash. We've used Zestron AC200 and A-250 in a batch cleaner set to 140 wash temp for 8-10 min @ the recommended concentrations. We have h

PCB Surface Question - Picture attached

Electronics Forum | Wed Mar 24 00:03:20 EDT 2010 | boardhouse

Hi Itzik, it looks like you receive a board from your manufacture that they did solder mask rework on. it looks like they stripped tried to strip the mask off the board. Was this the only board that was like this or did the whole order look like th

I need an Oven

Electronics Forum | Fri Apr 23 10:18:48 EDT 2010 | spitkis2

Graham, When performing such a temperature variation test, do you attach the thermocouples so that they are in contact with the PCB's pads or are they reading the air temperature? If they are attached to the PCB, I take it you reposition the board

Contact System C5 Question

Electronics Forum | Thu Apr 22 10:21:16 EDT 2010 | remullis

I am looking for anyone who has a C5 or equivalent that has successfully been able to pass large QFP parts that require 4 lead sets. The part I am working on is 31.75mm. The vision system takes four snapshots of the part and stitches the information

PCB bows after wave soldering

Electronics Forum | Tue Jun 29 14:44:26 EDT 2010 | rgduval

There are some good suggestions here...reflow pallets, and copper balancing. We would also suggest verifying that your problem is not caused by moisture. How much time passed between first side and second side reflow, and how humid is the environme

GemLine ED ver.3.13 Please Help !!!!!!!!

Electronics Forum | Wed Jul 07 03:23:39 EDT 2010 | propox

Hi, I have two Philips Assembleon lines and hard drive form computes was broken, I am looking GemLine ED ver.3.13. Assembleon told me that the software you are asking for is obsolete and not available anymore. The machines have passed the status of

nozzle level (low) out of tolerance (universal HSP)

Electronics Forum | Wed Aug 04 08:37:24 EDT 2010 | keiths487

Just to get the simple stuff out of the way. Make > sure that no one has changed the machine nozzle > data to a different type. Then try actually > changing the nozzle data and putting that type > into the head. If this passes it will at least >

Fuji CP-743 Quality expectations?

Electronics Forum | Tue Oct 26 10:10:03 EDT 2010 | kapa

We are currently using Mydata (12 and 15) and are now looking at Fuji CP-743 and IP-3, what quality expectation can I have? I am looking for First Pass Yield data from your production with CP-743 and IP-3 machines. Please state type of products you p

0402 Cap tombstoning strange behaviour

Electronics Forum | Thu Oct 28 10:06:12 EDT 2010 | d0min0

We saw this idea in older posts, but - we don't want tombstone elsewhere :) - rotating the boards before oven is complicated, so it could give more problems than the tombstoneing :) the issue is not 100%, it is 10 to 50 boards with component up per 3

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