PLEASE HELP!

[Changots]

Allright, so here is the problem. I have a green laser (leadlight 105 from vital spirit) where I modded the pot mod and was pretty happy with it. The laser kept going on and off and by moving the pot a little bit and gluing it in place helped it. It was working well until it fell no more than a foot ro two off my desk (onto carpet) and then it started flickering again. I read justed the pot and it kind of helped, but then it slipped literally 2 inches from my hand to my keyboard tray and then it was down hill from there, it went dim, i readjusted it AGAIN, and it worked okay, until whenever i pressed it it would go into a sort of "charge up" phase where it seemed like it had to do just that, it would go from dim to its normal brightness within a short ammount of time. I tried to fix this by just nudging the pot but now nothing works, even when i shake it it doesnt work. does anyone have any suggestions on what it might be? or is my laser dead? /ubbthreads/images/graemlins/frown.gif /ubbthreads/images/graemlins/frown.gif /ubbthreads/images/graemlins/mad.gif

thanks,
logan

 

[Arni]

Hi,
open you laser and look at the pot. Maybe there is some glue between the metal (which u can turn) and the bottom part.

 

[LaserMod]

It's just warming up...

Some of them do that at higher outputs. /ubbthreads/images/graemlins/smile.gif

 

[Changots]

i can have it one for a minute or so turn it off, immediately turn it back on, and it will still do it. /ubbthreads/images/graemlins/frown.gif and i'll look for the glue. thanks

 

[Changots]

ahhhh i'm dying here without my laser, please, any more suggestions?...anyone?

 

[Bengal]

Hmm first documented case of laser withdraw....

 

[bootleg2go]

Open it up and check the circuit board to make sure the red and black feedback wires if it has them are still soldered to the board well. Also closely inspect the pot and see if it has a bad solder connection and last check to make sure the 3 pins of the laser diode itself are still soldered to the circuit board. To me it really sound like just a bad connection somewhere. However the internal of the laser (mirrors and such) are fairly fragile so dropping could easily damage them, but a drop of only 18" onto carpet should not hurt too bad unless it pretty hard carpet without padding and the 18" was really 36-48 inches.

good luck and just have a close look for a bad connection to the circuit board.

Jack

 

[DAZGREEN]

[ QUOTE ]
Bengal said:
Hmm first documented case of laser withdraw....

[/ QUOTE ]

The first /ubbthreads/images/graemlins/confused.gif But not the last /ubbthreads/images/graemlins/wink.gif

 

[deezdrama05]

Them pots can be touchy it doesnt have to be at the exact spot where the pots inbetween getting full power and dimming to nothing. I thought this and set the pot as absolutilly close as I could from not dimming but any slight movement will make it flicker and your power output flucktuates. I just recentlly hooked up my digital meter to my leadlight and adjusted the pot to as far max as it would go and then I backed the pot back down in the way that turns it down - but you can turn it down a whole 1/16 of a rotation before the output power actually starts to drop. So back the output way down and see if it comes on if it does just find the sweet spot close to the end where it is stable. If this dont help listen to bootleg and taker her apart and check all posible solder spots. And if you are good with small electronics have some fun and align the diode and maybee do a resistor mod while you have her apart.But only if your confident in doing it, it is tedious for novices. I just thought of something else try fresh batteries and if that dont work try shorting the pot while holding the button -FOR ONLY A FRACTION OF A SEC. as some crystal sets and/or diodes cant handle 600ma of juice wich is what you will be pushing through her. Hope it helps as I would be very pissed if my leadlight stopped working on me. By the way do you have the 105 or 110?

 

[Changots]

105 (as stated in original post) ughhh, well all solder points are fine, ive turned the pot 5 whole turns either way to ty to get anything out of it and nothing came...before it died it was very touchy...it would wouldnt work but a few violent shakes would put it to full power. well logically it must be the pot, well when i turned the pot, nothing happened. not one thing, not dimmer or brighter (talk about frustrating) would me shaking it have to do at all with its current state of DEAD? /ubbthreads/images/graemlins/poke2.gif the only thing i can think of is that something inside the diode itself is loose or broken. *sigh*

 

[deezdrama05]

Did you try shorting the pot to bypass sum resistors?

 

[deezdrama05]

let me know if you decide to sell it

 

[uncleworm]

Do you see more lines comming out of the pointer?
You can see this with some smoke or when you holding
a white paper direct afther the pointer you see two dots?

 

[deezdrama05]

I recently messed my laser up ,the circuit board was angled cause of pushing the button too hard so I pushed it back up and heard a snapping sound -oh crap- so I pushed it back up and checked everything out and everything still seems secure and in place . I thought I might of broke one of the diode legs but I guess not. But I cant tell wich way the crystal lens goes back in and at one point it was shooting out 2 beams. Any suggestions? It seems either way I flip the crystal lens I can only get 30mw out of it when I had 65mw before this happened.

 

[Changots]

it is absolutely dead, i tested all the resistors solders..the whole 9 yards...still nothing...not even one bit of light.can i buy a new diode or something i hate to see this laser go to waste. /ubbthreads/images/graemlins/frown.gif

 

[Changots]

still not fixed....soooooooooooooooooooo annoying!!!!!! i want my "laz0r" back /ubbthreads/images/graemlins/banghead.gif

 

[Raccoon]

You would be well advized not to power your laser when it is disassembled. The IR emmited is greater than the green you see, and without the IR filter in place you are putting your eyes at risk-- without even knowing it.

(why is everything getting dark? my eyes feel funny.)

 

[Changots]

HOLY CRAP!!!! GOOD NEWS!!! i was fiddling around with my supposedly dead laser when i tried to shake it alot(why not right?) well i get something out of it while i shake it
i could possibly be the batteries but im not sure, if im lucky something seems to fall or lay in the right place and it will give me a steady normal output, otherwise it is extremely dim or it doesnt emit anything. what could it be?

 

[Raccoon]

Could be the crystal assembly I was refering to.. perhaps came unglued from its mount? In which case, you might be putting out a whole lot of IR light which is hazardous to your health.

 

[Changots]

my laser is not disassembled and its not that batteries...if it is the crystal assembly is there anway to fix it?