Forum Index > Projects > LED Pegboard and Matrix Projects
 D1 on Meggy Jr not working
 |  Printable Version
By: Anonymous: LukeCarpenter () on Saturday, February 14 2009 @ 09:15 AM PST (Read 2806 times)  
Anonymous: LukeCarpenter

Hi,
On my Meggy Jr, the second auxiliary LED D1 has mysteriously stopped working.
Any ideas what would of caused it to of stopped working?
I might attempt to remove the LED and put in my spare (if I can find it) but before I bust out the iron, is there anything else I can do to fix it?





       
   
By: Windell (offline) on Saturday, February 14 2009 @ 12:26 PM PST  
Windell

There's nothing particularly special or unusual about that LED, so the first thing to do is to try touching up the solder joint at both points-- the most likely thing is *always* an iffy solder joint. Confused


One other place that there could be an issue is on pin 14 of U3. U3 is the "upper" LED driver chip (by C2), and pin 14 is at the corner opposite C2, and it's not the pin at the very corner, but the one next to that.

If you need a picture of where to look, please e-mail me privately.


Windell H. Oskay
drwho(at)evilmadscientist.com
http://www.evilmadscientist.com/

Forum Evil Scientist
Evil Scientist

Status: offline

Registered: 06/15/06
Posts: 1932
Sunnyvale, CA

Profile Email Website  
   
By: Anonymous: LukeCarpenter () on Monday, February 16 2009 @ 08:21 AM PST  
Anonymous: LukeCarpenter

Thanks
it might be some iffy solder joints as I have got some trouble with a ladyada xbee kit Confused
Thanks for your help, I cant see any solder jumpers on the board
it did work for a very small amount of time but after I restarted meggy it turned off again =/

Thx, Luke






       
   



 All times are PDT. The time is now 03:45 PM.
Normal Topic Normal Topic
Locked Topic Locked Topic
Sticky Topic Sticky Topic
New Post New Post
Sticky Topic W/ New Post Sticky Topic W/ New Post
Locked Topic W/ New Post Locked Topic W/ New Post
View Anonymous Posts 
Able to Post 
Filtered HTML Allowed 
Censored Content 

Evil Mad Scientist Forum Archives — Read only!

Please visit our new forums for new discussions.


DIY Hardware for Electronic Art


The Original Egg-Bot Kit


Octolively
Interactive LED kits


Meggy Jr RGB
LED matrix game
development kit.


Business-card sized
AVR target boards


Peggy 2
LED Pegboard kits

My Account






Lost your password?