Electronics Forum: led rejection] (Page 1 of 2)

static issue on 0603 led tape and reel

Electronics Forum | Wed Oct 13 08:37:49 EDT 2010 | denisp

we have a static problem with 0603 led when removing the plastic retainer from the tape and reel. same problem with the feeder causing reject and bad placement. is there someone having the same problem? and how to fix it. thank you

LED rejection driving me nuts

Electronics Forum | Thu Apr 11 09:21:57 EDT 2013 | ericrr

Hi All, sorry to bug you, the attached picture of a LED is driving me nuts,

LED rejection driving me nuts

Electronics Forum | Thu Apr 11 15:09:20 EDT 2013 | ericrr

Thank you for that Phil, we have more LED coming.

LED rejection driving me nuts

Electronics Forum | Mon Apr 15 13:29:22 EDT 2013 | cyber_wolf

The laser height can be changed to any level you want regardless of the algorithm you select.

LED rejection driving me nuts

Electronics Forum | Thu Apr 11 13:50:26 EDT 2013 | jimmyboz

I don't know Juki machines, but I assume it is using vision. On these components I have sometimes called the leads the body and the body the leads. I'll make a picture if this sounds like it will help.

LED rejection driving me nuts

Electronics Forum | Fri Apr 12 10:27:20 EDT 2013 | dontfeedphils

No problem. I attached a little visual aid that I use to remember the different laser algorithms that the machine uses.

LED rejection driving me nuts

Electronics Forum | Thu Apr 11 11:32:16 EDT 2013 | markhoch

It might help to investigate the error code provided for the rejected parts. It could help point your troubleshooting methods in the right direction. (Example, if it's failing for vision errors, you may need to make adjustments to your vision file di

LED rejection driving me nuts

Electronics Forum | Thu Apr 11 14:11:10 EDT 2013 | dontfeedphils

If it's using the laser alignment try changing the part type to "SOT" instead of chip, and then enter the dimensions for only the body of the component. The "Chip" setting will measure the part half way down the body, the "SOT" setting will measure

Specification for LED

Electronics Forum | Sun Nov 15 21:18:11 EST 1998 | Pattana Sirivunnasan

I would like to know about specification for accept or reject LED which have defect such as,chip ,crack ,etc. this type of LED is surface mount device type. Thank you for your help.

Dull Solder

Electronics Forum | Thu Nov 11 21:10:41 EST 1999 | Edmund

I experience dull solder at the reflow station runing some SMD LED. It is a reject for dull solder. Is there anything wrong in the setting of the oven temperature? Temerature too high or too low? Pls advise. Thank You Rdgs.....

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