Electronics Forum | Thu Mar 01 00:29:08 EST 2007 | Muhammad Haris
Hi, I believe ,do the BGA side first and then use glue from dispensor for the connector side. THIS CONDITION CAN BE FOLLOWED IF & ONLY IF UR CONNECTORS DO NOT BURN OR LOOSE THEIR PHYSICAL STATES. OR SIMPLY REDESIGN THE
Electronics Forum | Mon Apr 29 12:35:13 EDT 2024 | radek
Fuse was ok but the resistor which feed optocoupler was burned out. After replacing resistor everything is working fine. Now I've got error: "Infeed disbaled" - but this is configuration error ? BTW I have one more question - can I use this machine
Electronics Forum | Sat Mar 20 06:18:58 EST 2004 | agp
I haven't heard of anybody yet who have done smt and reflow after thruhole and solder wave. Thru hole components usually have low resistence to heat and could easily burn when subjected to the 210deg-245deg.C reflow temperature. For pc boards with co
Electronics Forum | Sat Jul 08 12:33:07 EDT 2017 | dleeper
As others have mentioned, using your P&P machine is as accurate as any other solution and has the advantage of using equipment you already have. Most, if not all, P&P machines should have some sort of teach mode where you center the camera over the f
Electronics Forum | Tue May 26 11:13:49 EDT 2009 | xinxi
Is the components on the top or on the bottom of the pcb? Have you checked whether the temperature on pcb are too high when it pass through SW that it exceeds the limit that the components can take? Do check with the component manufacture for the te
Electronics Forum | Mon Sep 05 01:38:12 EDT 2005 | plcc
I hv a PCB (mtrl is RF35). After going thru' reflow, we found yellowish stain on the solder pad (solder mask). It looks like burn-marks. The reflow temp use is 245oC. We tried running bare pcb under 220oC, there's minimum stain found (acceptable),how
Electronics Forum | Thu Sep 23 09:28:49 EDT 1999 | Earl Moon
| | Hiya, | | | | Could anyone please suggest recommended manufacturers of | | IR rework stations for the removal of various SMT comps. | | | | Cheers | | | Why IR ? Ok, I�ve seen only one but that thing burnt the PCB before the solder was meltin
Electronics Forum | Fri Sep 24 13:44:06 EDT 1999 | Eric Lee Williams
| | The machine is a Universal 6796 DIP inserter. The driver card for the X axis burned a couple of resistors and a trace, probably a couple of power transistors too. I had a spare card and put it in. Now on powering-up the machine, the X-Y table
Electronics Forum | Mon Apr 12 10:39:48 EDT 2004 | Ron Herbert
Correct preheating of the assembly is critical. Check with your flux manufacturer regarding the recommended topside pcb temperature as it enters the first wave. It is important that this temperature be achieved without burning the flux on the bottom
Electronics Forum | Thu Nov 10 13:55:25 EST 2005 | 1st Article
Milroy, Another thing to look at is your wave profile. Check speed and pre-heat, if flux gets burned off before reaching the wave then bridging is expected, a common way to check for speed is to time the point of first contact through the sub-merge
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