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 Post subject: Yet another dead SB28
PostPosted: Tue Apr 17, 2018 7:45 pm 
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Hey everyone,

Had another death of SB28s. For reasons unknown my sensor triggered my camera for 500 shots last night, each at 1 second intervals just in case this very thing happened. Flash power at 1/8. Yet the SB28 is now dead, refusing to power on. I'm getting tired of these units dying.

Is there any way to fix them? Especially as no camera manufacturer has yet made anything with a better capacitor?

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PostPosted: Tue Apr 17, 2018 8:02 pm 
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My SB28's have survived similar events. I use standard eneloops for power. Perhaps you are using lithium and they run hotter and longer?


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PostPosted: Tue Apr 17, 2018 8:06 pm 
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Or perhaps I am lucky because night time temps are cool here.


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PostPosted: Tue Apr 17, 2018 10:13 pm 
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Last night was fairly cold. I am using Eneloop Pros.

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PostPosted: Tue Apr 24, 2018 5:50 pm 
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Are you using a wired sync connection? I used to fry LumoPro LP 160 flashes because the sync cable would get stress on it and jiggle around a little and make the flash fire constantly. Same thing with optical triggers and SB 28's. Something weird is going on if you are frying your SB-28's at 1s intervals at 1/8. Can you program in a pause, like it shoots 3 shots, then stops for 20s? Can you put a snoot on your PIR to stop the false triggers?
J

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PostPosted: Sat Apr 28, 2018 7:12 am 
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Using a simple PC Sync wire. The PIR is in a snoot too, there was a runaway issue with the flash resetting the day/night switch that caused it. If I knew what part burns out, I MIGHT be able to fix it...

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