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Neje 30W help please

alb3rto

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Jun 22, 2021
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Hello everybody, I recently purchased a NEJE 30W laser module, connected it to my Makerbase MKS-DLC to the laser output, tested it and after a couple of seconds the laser stopped working, I think a diode on the driver is burned. Measured the voltage on the Laser output of my mks and it is switching between - and + 12v, I don't know why. I opened the laser and found the burned diode, but I don't have his model, can somebody help me finding it? thank you very much.

 





WizardG

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3 leads... SOT transistor? If the thing only lasted a few seconds ping the retailer who sold it to you.
 

alb3rto

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I asked the seller, he is waiting for a reply from the engineer
 

WizardG

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Hmm... Even if you somehow did something to kill the driver they should at least be offering to R&R the beast. Can we know who you bought it from?
 

alb3rto

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Hmm... Even if you somehow did something to kill the driver they should at least be offering to R&R the beast. Can we know who you bought it from?
here www dot aliexpress dot com/item/4001287518270.html

and I think my mks dlc killed it, I connected the laser output of the motherboard to the laser, then after it burned I tested the output pins and realized that there is an alternate voltage on those pins, damn it.

 

davion13

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Sep 10, 2021
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Hallo,

habe auch lange nach dem Teil gesucht. Ist bei mir auch kpl. abgefackelt. Konnte nichts mehr erkennen. Neuen gekauft und nachgeschaut.
Es steht S7 drauf. Sollte so ein SST177 P-Channel sein. 3-2-1 sot23. Hoffe konnte noch helfen. Habe noch nicht gewechselt, da gerade erst den neuen erhalten und gleich zerlegt. Gruß
 





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