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My Blueray just died!

jasturbo02

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Just thought I'd share that my blueray diode from the Dr. Lava group buy just died. I built the 7805 circuit that Rog was using and set mine to 37ma with DX RCR123 batts. It lasted for about 5 minutes before it died and man was it beautiful! I feel very sad right now as I had just finished the housing for it. :'( It's a wonder it even worked in the first place, as I had a very hard time gettingi t pressed into the module. I've pressed tons of DVD reds into Aixiz modules, but this one gave me a fit. I bent the pins a little getting it pressed in. Not sure if it was that or my circuit was over driving it. Oh well, better luck next time I guess.
 



drlava

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sorry to hear that, I've found them more difficult to mount in those cases than the reds, too. does the red laser in it still work?
 

toked323

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yea same here i built that same circuit it didnt last long so i bought an ns102 driver
 

jasturbo02

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@Dr. Lava... I didn't try the red. Is it powerful enough to mess with? I don't even get purple LED light with the violet when it went out, just no output at all.

So I wonder what the best circuit is for these in reagrds to diode longevity? And Dr. Lava... when you doing another group buy? I'm going to buy 2 diodes this time from whoever does the next GB. That violet beam was so beautiful and I'm hooked. Definitly my fav color so far.
 

Tallaxo

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Are you really sure it is dead? I would recheck your soldering incase you have a short to the case or another pin, this will result in load but no optical output. The reason I say this, is you should really still be getting some sort of optical output at 37ma

Maybe de solder and re solder the +ve wire back to the violet pin, after all you have nothing to loose.

jase
 

jasturbo02

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Just checked and the red works but nothing from the the violet pin...sob sob... it's dead. :'(
 

MarioMaster

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at least yours broke after gettng to use it for a little bit, i snapped the pin off mine :(
 

jasturbo02

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LOL Man, that does suck! Sorry to hear about your mishap. Yeah, I didn't realize that the connection ribbon was actually a small circuit board soldered to the back of the diode so I tried to press it into the module with that still attached. It smashed all my pins together but I was able to use a hobby knife to spring them back out. I usually cut that ribbon all to shreads with a hobby knife and it falls right off. That way I don't risk overheating it trying to de-solder. .... a bit of a surprise when I saw it was circuit board and not ribbon! I pretty sure I overdrove mine. I set it to 37ma like someone else on here had done, and now I'm reading more that each diode has its own personality and you should stop turning the pot right after lasing begins. I thought it was awefully bright! I feel like an idiot now! lol
 

MarioMaster

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i pretty much did the same thing, and was what made the pins so brittle, next one that i get i am leaving the small pcb on and drilling out the module so it fits much easier
 

chimo

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I would recommend leaving the flex circuit board on the LD. Just cut off the excess flex and solder wires to the proper pins. The remaining pins provide support for the others.
 

LarryQ

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chimo said:
I would recommend leaving the flex circuit board on the LD.  Just cut off the excess flex and solder wires to the proper pins. The remaining pins provide support for the others.

DITTOS!!!!!!!

Save yourself a LOT of headache!!!!!

LarryQ
 

Greyfox

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chimo said:
I would recommend leaving the flex circuit board on the LD. Just cut off the excess flex and solder wires to the proper pins. The remaining pins provide support for the others.
LarryQ said:
DITTOS!!!!!!!

Save yourself a LOT of headache!!!!!

LarryQ
I triple that one. I had a hell of a time with repairing the pins on one of those Blu-ray lasers. Leaving the board on (but cutting and removing the trace copper) left it far more stable. Now, I have to finish up the somewhat more complex power supply for a TEC-cooled magenta laser. :D
 




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