i fooking hate lasers...

[andy_con]

installed my dual 445 into my projector, doubled checked all connections etc

turn it on with no modulation signal and i got a faint light as expected from the 445's. went to get another psu so i could add 5v to the modulation came back and the 445 was dead.

taken it out and seems both diodes are completely dead no light whatsoever.

just what you need when you have a gig saturday and no spare diodes.

[Lasermad]

ahhh come join the IM A TWAT CLUB

my tale of woes from last weekend , dual blue 445nm

"
Im a twat

I picked up a power supply , keen to see some blue
..it was 12v , 2000ma , perfect i thought for the dual !

Saw some blue light for a second , then nothing :-(

Tried to figure out what went wrong grrrr

then i spotted ........arrrgghhhh

IT WAS AC-AC ...ooops

"


Then a set of galvos next day went , POP , smoke , bang

Whats that £400-£500 equipmnt went pop in a weekend

PHEW !!!!!!


DOUBLE PHEW !!!!!!

[LaNeK779]

any idea what caused this andy?

[andy_con]

lasers are ghay paul!

not a clue thats the annoying thing, i just cant work it out

[flecom]

how the hell did you kill 445 diodes? thats no small task... I smoked one (literally, smoke came out of it) and it still worked after

[badger1666]

lasers= good , snow = ghay

[andy_con]

how the hell did you kill 445 diodes? thats no small task... I smoked one (literally, smoke came out of it) and it still worked after

i just dont know, im sitting in front of my projector trying to work it out.

there was 12v going in but no modulation signal, so they were out putting like 5mw each. came back to em and they were dead.

checked voltage and its 100% 12v.

im using a die4laser driver and lasorbs, so what ever happened went straight through em

[flecom]

are you using a proper power supply or an AC adapter?

[andy_con]

atx supply, that is powering my 1watt green as well

[badger1666]

hey andy you might of killed the die4drives
i had somthing simalar nearly happen to me but i was watching it
and pulled the plug, i did not think the drivers liked 12v ?
and certainly when not being asked to do anything i found the output fet
got super hot ,not so bad at 9v but it still likes the modulation connected to a dac or pulled low to keep it happy.
just my findings from past use, no probs with red drivers though, just the blue ones