Electronics Forum | Fri Jul 19 18:21:17 EDT 2013 | microaide
We recently purchased some used Quad 4C machines. One of them does not seem to keep a stable origin reference point. I teach the nozzle and component pickup coordinates, then suddenly everything seems to be off by .030 to .040 inches in the X axis. I
Electronics Forum | Fri Aug 30 05:34:28 EDT 2013 | bobpan
I would check the following: 1. Make sure the head can move in all axis including z and theta by physically moving each. 2. Check the voltage from the main power supply which is located in the middle of the machine on the top of the main board asse
Electronics Forum | Fri Aug 30 21:54:14 EDT 2013 | nophsem
Well, the error occurs with Mod Code 56 (dispenser enable). Head # 1 has installed this accessory, but we use it very little and it wasn't this time. I probed setting 0,1,2 and 3. I downloaded Mod Codes from controller to assembler, then the error b
Electronics Forum | Mon Jun 16 10:52:02 EDT 2014 | robstarrs
bobpan quick background. I am very new to the Quad machines, I used to "run" one, but I never learned the inner workings of a machine. I just purchased 2 used quad 4cs, I had a training session over the weekend with a very knowledgeable guy and l
Electronics Forum | Fri Jun 05 04:07:15 EDT 2015 | buckcho
There are several way to tech this. I used this machines some time ago and maybe I am rusty, but you can try two ways that I can think of: -use IC package with 4 leads from one side and 1 big from the other. You can play here a lot, for example you c
Electronics Forum | Mon May 12 13:55:19 EDT 2014 | hegemon
It sounds like a bit too much solder on the PWB, caused by too large a pad for the lead it will contain. In that case solder reduction is the way to move forward. What are the options there? 1. New stencil or stencils - (not desirable) 2. Increas
Electronics Forum | Fri Jul 18 03:21:59 EDT 2014 | skipbruce
Hello June The following infomationI find from net for you reference. OSP (Organic Solderability Preservative) 1)Preserves copper surface from oxidation until asse mbly. 2) Very thin coating (100-4000 Angstroms). 3)Applied in a vertical (dip tank
Electronics Forum | Thu Sep 04 03:26:18 EDT 2014 | eurekadrytech
Hi all: Interesting question you have raised as it concerns the rate of absorption by the board material. I represent http://www.EurekaDrytech.com and could assist in resolving the blistering problems you're facing. First some questions. 1. Is the
Electronics Forum | Thu Nov 20 04:02:02 EST 2014 | hhat
PCB layout of the circuit components, to meet the requirements of anti interference design: 1* arranged for each functional circuit unit in accordance with the circuit flow position, the layout of the signal for circulation, and make the signal as m
Electronics Forum | Wed Dec 10 16:58:53 EST 2014 | sreejhu
Hello, yes you are absolutely correct. I agree with your point. Last week,I personally checked out my board on Heller 1088 which is a 8 zone reflow oven (4 on top and 4 on bottom) and the soldering came pretty nice. So comparing with that situation
