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532 "200mw", red LED on Driver Board? Broke?

AquariusLaser

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Oct 21, 2010
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Hey there, I have a "200mw" focusable similar to the Cute Rayfoss style 532 bought elsewhere. Anywho I need to learn my lesson to leave things alone if they work. It was a great laser till I turned the pot to try and boost the current. I have another greenie with the same claimed power and it let me turn the pot while running nonetheless.

Well, I tried it with the one I mentioned above and now when powered up it flashes a tiny glimpse of green then stops, and on the driver pcb, there is a little red LED that lights up, never could get it to go back to the way it was. Anybody know what this little LED is indicating? Possible Diagnosis?
 



udanis

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Aug 2, 2010
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Is the red led on the driver board? Or is it coming out of the apature? Normally cheap chinese lasers don't have diagnosis systems included on them.
 

HIMNL9

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May 26, 2009
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Any pic of the driver ?

Also, in the past, leds was used as "voltage reference" for low current applications (like zeners), maybe it's just the Vref of the driver op-amp ? (just wondering)
 

AquariusLaser

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Oct 21, 2010
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Yeah its actually coming from the driver board...Ill get the pic in soon. But I am assuming the LED and momentary flash means some type of safeguard system for some component. On a $50 laser no less...
 




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