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ArcticMyst Security by Avery
My first build, a fail!
- Thread starter Antracith
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Antracith said:
Before I could answer this question, you'll need to post some pictures of your setup and elaborate a bit about the process you went through to complete the build. Once you elaborate a bit, then people will be able to answer your question..
Ok, you're right.
I am building a Jayrob Pocket pal. First I harvested the lpc815 diode from the sled and this went really well. The diode seemed completely undamaged. Then I put the diode into the aixiz module the classic way by using the rear end of the housing and a bench vice. Then I Put the module into the heatsink before I began to solder. I also did the plastic cut away thing on the lens. Then I soldered the diodes on to the flexdrive and I never touched the diode with the soldering pen more than 2 maybe 3 seconds. Then I soldered the flexdrive to the positive and negative point of the host. The flexdrive was set at 450 mA by drlava. Then I attached 3 AAA 1.5 V batteries to this and turned it on. Unfortunately I can' post any pictures right now.
I am building a Jayrob Pocket pal. First I harvested the lpc815 diode from the sled and this went really well. The diode seemed completely undamaged. Then I put the diode into the aixiz module the classic way by using the rear end of the housing and a bench vice. Then I Put the module into the heatsink before I began to solder. I also did the plastic cut away thing on the lens. Then I soldered the diodes on to the flexdrive and I never touched the diode with the soldering pen more than 2 maybe 3 seconds. Then I soldered the flexdrive to the positive and negative point of the host. The flexdrive was set at 450 mA by drlava. Then I attached 3 AAA 1.5 V batteries to this and turned it on. Unfortunately I can' post any pictures right now.
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Everything that you've said there seems right, except for proper ESD protection. Due to the fact that electrostatic discharge season is upon us (fall/winter) I'd say that static discharge is the likely culprit.. My advice to you is that before you remove the next diode from its original heatsink you first short the pins of the diode out by temporarily soldering a wire between the positive and negative diode pins. This will protect the diode from ESD until you're ready to attach the driver. Then you just remove the jumper and connect the driver.
jayrob
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Also, check that you have the voltage from your battery pack! Especially if you didn't cut the tabs that I show in my tutorial. Easy to check voltage. Maybe.... just maybe, you are just not getting enough voltage to the FlexDrive...
Jay
Jay
"Cut the tabs" 
I totally missed that part... what was that for?
When I check the batteries I get 4.6 V, that should be enough right?
I harvested all my red diodes at once, I really hope my other two are not broken as well. I will replace the diode later today.
When I get this weak red light, there is still pretty much IR radiation right? Is this a LED now?
I totally missed that part... what was that for?
When I check the batteries I get 4.6 V, that should be enough right?
I harvested all my red diodes at once, I really hope my other two are not broken as well. I will replace the diode later today.
When I get this weak red light, there is still pretty much IR radiation right? Is this a LED now?
jayrob
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Look very carefully at the picture I have of the battery holder in my tutorial:
http://www.laserpointerforums.com/forums/YaBB.pl?num=1213338268/0
You will see a line pointing to the tiny tabs that I am talking about.
Some batteries will hit the tab, and not let the positive battery contact make a solid connection. Or, it may be intermittent or week contact.
This may not be your problem, but it is good to check this...
Jay
http://www.laserpointerforums.com/forums/YaBB.pl?num=1213338268/0
You will see a line pointing to the tiny tabs that I am talking about.
Some batteries will hit the tab, and not let the positive battery contact make a solid connection. Or, it may be intermittent or week contact.
This may not be your problem, but it is good to check this...
Jay
jayrob
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It may not be your problem...
Just trying to tell you that it can be 'intermittent' (sometimes giving voltage, sometimes not). I have had this problem before. That's why I showed it in the tutorial...
Jay
Just trying to tell you that it can be 'intermittent' (sometimes giving voltage, sometimes not). I have had this problem before. That's why I showed it in the tutorial...
Jay
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Antracith said:Today I replaced the diode with another of the same kind and it works!!!!!!!!! Me so happy me so happy me so happy!!!!!
It is so freaking cool!!!!
I did it!!!
Awesome! Congratulations. That makes me think that your other diode was in fact killed by ESD. Follow my pointers above and you shouldn't ever lose another diode to static discharge..
