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Now I know why the call the White LIGHTNINGS!!!!!!!!
Old 01-28-2004, 05:02 PM   #1 (permalink)
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One of my WL Ultra 600 started "flickering" the strobe, not the modeling lights. The ready light and the dump like where fading in and out and the light wouldn't fire.

I took it apart looked like a copacitor was bad so I replaced it...Still was doing the same thing when I put it back together, took it apart again cleaned some things up went to put it back together maybe not as powerful as a lightning bolt, but definite as loud went of in my face!!!!!!!!!

Scary...!

Anyway does anyone know of a place that works on White Lightnings?
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Re: Now I know why the call the White LIGHTNINGS!!!!!!!!
Old 01-28-2004, 05:53 PM   #2 (permalink)
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ummmm, try

http://www.white-lightning.com/

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Re: Now I know why the call the White LIGHTNINGS!!!!!!!!
Old 01-28-2004, 06:45 PM   #3 (permalink)
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amazing the wealth of knowledge on here sometimes....
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Re: Now I know why the call the White LIGHTNINGS!!!!!!!!
Old 01-28-2004, 07:07 PM   #4 (permalink)
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try the additional knowledge you could have killed yourself.

Stu [img]/ubbthreads/images/graemlins/crazy.gif[/img]
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Re: Now I know why the call the White LIGHTNINGS!!!!!!!!
Old 01-28-2004, 08:36 PM   #5 (permalink)
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That is why I like spending time on this site. I learn so much more from you guys.
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Word to the wise....
Old 01-28-2004, 10:32 PM   #6 (permalink)
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Once upon a time, I had an old Kodak instant camera (the kind that got them sued by Polaroid). It wouldn't work, so I decided to take it apart...see what made it "tick". When I got to the built-in flash area (GN of about 20 for ISO 100), my screwdriver happened to short out the leads of the capacitor. I remember seeing a blue spark about a foot in diameter, the bang of a .25 caliber, and I wound up across the room dizzy as hell.

NEVER work on a large strobe. They'll kill. Period!

David B.
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Re: Now I know why the call the White LIGHTNINGS!!!!!!!!
Old 01-29-2004, 12:00 PM   #7 (permalink)
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Although now I am a little deaf in one ear and half blind in an eye the problem has been solved.

Final assement, a capacitor blew there was some kind of liquid gunk on the board, befor the explosion...I cleaned it with some "electronics stuff" again before the explosion I changed the capacitor.

I put the light together today to ship out and what do you know it works fine?

I am lucky to have my light back, but more importantly I am lucky to be alive!

Moral to the story...don't mess with these lights let a professional do it! Learn from my stupidity.
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Re: Now I know why the call the White LIGHTNINGS!!!!!!!!
Old 01-30-2004, 06:03 AM   #8 (permalink)
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Jeff I'm just curious, and not poking at you, but did you ground the light (and isn't there a way to discharge the caps before tinkering)? I assume that it wasn't plugged in when you were tinkering... [img]/ubbthreads/images/graemlins/tongue.gif[/img]
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Capacitors and safety!
Old 01-30-2004, 09:31 PM   #9 (permalink)
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As an engineer in electronics, let me just give you a brief synopsis on capacitors. Their sole purpose in life is to store voltage and then release it when the circuit meets certain conditions. That is over-simplified but they can hold a charge for a VERY long time if there is something wrong with the bleeder network. A bleeder network is a shunt network that will drain the capacitor when power is lost to the circuit. It's a safety feature mostly. In flashes and strobes, these capacitors carry a very significant amount of voltage...tens of thousands of volts. Yes, they can kill you in the right circumstances and, at best, you'll be "blind in one eye and deaf in one ear" when it lets loose the juice. You could also burn yourself pretty severely.

If you don't know about electronics, don't mess with it. The life you save may be your own. Save it for those who know what they're doing. And for those who don't want to heed my advice, do me just this one favor then when you decide to open up electronic items....TAKE OFF ALL JEWELRY THAT IS METAL INCLUDING WEDDING RINGS. If you short your wedding band across some voltage, you can rest assured you won't need your wedding band any more because your finger will be gone from the ring up. Current carrying capability of a gold band wedding ring is VERY high. Remember the old joke about using a penny to fix a circuit breaker? Well, it does work but causes things to blow up. Gold is a much better conductor than copper, in fact it is one of the best conductors known to man and can be VERY dangerous when worn while working on electronic items.

Didn't want to preach but I don't want to see anyone getting hurt or killed by putting their fingers where they don't belong. [img]/ubbthreads/images/graemlins/smile.gif[/img] Ok?

Have an excellent weekend!

Mike
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