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speedlite 580ex II flashes at full power

vencislav95
Contributor

HI, everyone 🙂
I have a canon speedlite 580ex II. But suddenly when I had made photos it started to flashes at full power.  Cat Sad Help me. What could be the problem?

24 REPLIES 24

hi. i have the same problem. howe thit u change it? do you have pictures?

Scott_TCR
Apprentice

It's not an easy repair.  High voltage isn't fun.  Organizing the wires isn't fun.

 

http://z1b.livejournal.com/44638.html

 

 

maybe you can help me.
I am an electronics technician,
I have already repaired 2 times my flash 580ex ii,
once the xenon tube and another time the IGBT. everything was fine.
 
Then following some hummingbird shooting at 1/8000 sec
my flash returned to full power only, manual, automatic, no more strobe, but the hss always founds a full power.
I still changed the IGBT, although it was not logical since the hss worked well, and check the optical cable,.

I always remain at full power.
  Thank you for your help if you are the technician and repairer of these models

 

Midel

Canon technicians do not reply here.

Crissmc
Apprentice
Dear Sir,
I have an 580ex ii canon flash, (with the same problem as yours) i change the IGBT, but does not work. What other elements you change, please?
Kind regards,
Cristian S.
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