Electronics Forum: tried (Page 10 of 896)

mpm up2500 PASSWORDS?

Electronics Forum | Mon Jun 18 10:10:56 EDT 2007 | swag

You might try: User (no password) Super "ADMIN" Maint "SVC" F.S. "QMPM" Not sure if these are default but worth a try.

Temperature Probes for Reflow Profiling

Electronics Forum | Fri Jul 27 08:49:03 EDT 2007 | samir

d0min0: I will try to email you the file from this site. Sometimes SMTNet's email utility does not work. Or, try to email me directly: samirpaperjam@gmail.com

PCB Warpage in Reflow

Electronics Forum | Fri Jul 13 04:58:01 EDT 2007 | pavel_murtishev

Good afternoon, Heating/Cooling rates contribute to warpage most of all. Try to tweak you profile so that heating/cooling rate would be minimized. Try to switch cooling blowers off maintaining required peak/TAL. Check copper balance for this PWB, by

MCS30 Problem

Electronics Forum | Sun Sep 09 22:07:13 EDT 2007 | jepoy

After you tried the procedure, what the MCS error indicate? If you try to format the PC, all data stored will be erased.

MPM AP25 Squeege Pressure not Set

Electronics Forum | Wed Sep 19 19:48:16 EDT 2007 | simmcircuits

Yes, but it does not continue, it tried to weigh the squeegee but then after trying several times it would come up with an error that the Squeegee Left is not Free (up). Cheers

PCB Through Hole Size for Lead Free

Electronics Forum | Thu Nov 08 10:05:04 EST 2007 | pjc

I have not seen hold size as an issue when switching Sn/Pb to Pb Free wave soldering. Trying increasing your dwell time in the wave- typical for Sn/Pb is 2 to 3 seconds. Try 5 seconds to see what you get.

Affordable Inspection Microscopes?

Electronics Forum | Tue Jan 15 18:47:14 EST 2008 | operator

Funny you mention this. I tried this first. I have one now I am trying to sell for $87 dollars on EBAY. I am sure it could be useful for something other than electronics inspection. For electronics inspection of completed circuit boards it BLOWS!

Solder wetting to ENIG pads

Electronics Forum | Wed May 14 09:40:55 EDT 2008 | realchunks

Try running the second side first on a board. If it wets well, it points towards your board house. Run a blank board thru your oven and then try your normal process. If you see issues with the first side now - it definitely points towards your boa

Voiding issue

Electronics Forum | Fri Jul 25 07:26:45 EDT 2008 | realchunks

From what I can understand, you say this only happens on one type of BGA (?). Try baking this BGA. You may have out gassing during rework. Do you use tacky flux during rework? If so, try a different flux. And last, check your rework profile.

ive solder profiles

Electronics Forum | Mon Aug 11 10:48:06 EDT 2008 | realchunks

Too much flux will spatter and can leave balls on either side. From your pix you may too little flux. Try turning up and see. Also try hand applying your alcohol based flux and running through. Will take away a few question marks.


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