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Forum: General Discussion

Topic: laser help

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ok guys have a kam animation laser and saturday it just would not turn on.checked leads sockect so its defo light.
i have no experience with this sort of stuff so any help please.
ive checked and there is power going into light from mains to the board.
 
Inviato Mon 27 Jun 11 @ 9:12 am
anyone
 
sorry but only thing i could think of is maybe a burnt out laser diode or some fried electronics inside. have you tried calling the company that makes it?
 
Trace the leads from the AC line into the circuit board to see what components are involved. There could be an "in-line" fuse on the circuit board. Check for DC power on the large filtering capacitiors. One side should be ground. The other would be your DC voltage for the board. You might have a blown "bridge rectifier". There would be 4 leads going into this rectifier.

There are a lot of power supply designs. Hopefully you can trace through your components to find the problem. An oscilloscope would come in darn handy right now.

http://www.st.com/stonline/products/literature/an/1707.pdf

Good luck and be careful. Don't get zapped.


Jim
 
jimmy mate cheers for the indept answer.but for me i was lost.ive sent an email to kam so im waiting on reply.
cant even remember where i bought the light and i love the effects i get from it.
its a fscan laser
 
I guess you'll be asking them for a repair center location. Sometimes these facilities charge a flat rate for repairs. Get prepared for a little price shock.

Perhaps they can send you a schematic of their circuitry. Then you can tell if it is a circuit problem, or the laser diode is defective.

Do you hear any fans or motors running ?


J
 
no jimmy there is nothing kicking in.only know i have power on the mains going to board.
fans not even running
 
Well... that could be a good thing. No fans mean no power. Check for fuses. There are many different styles.

Double check to see if there is a screw in fuse located near where the power wire goes into the unit. If not located on the casing of the laser, look inside.

These units require a fuse or circuit breaker to protect them from catching fire in case of component failure. Trace the "hot" lead from your AC wire and you might find a fuse that is blown.

Do you have a multimeter or continuity checker ? Sometimes a fuse looks fine, but is actually non-conductive. Good luck.
 
i will give that a go mate but on looking at the unit no obvious fuse anywhere.i will however recheck when i get a chance.
sent kam an email and the reply was amazing.....have you switched the power source on ...and have you turned the key...psml.
i have tried to bypass the key switch by connecting together so i will have another look.
 


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