Question about Vivitar 285HV Flash

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No 'green' light on bacl of my 'old' Vivitar 285

My Vivitar 285 Thyristor with new batteries whines while re-charging (I believe that noise is normal). However, only the Red light glows. The Green does not come on. Now, it used to go back and forth between Red and Green and have a 'chirp' when the flash was ready (I assumed it was fully charged). Now, it still 'chirps', but only the Red light glows. I set the flash to M for manual and hit the test button -- it flashes. I set the flash on 'Yellow' and then aimed the flash unit at the wall -- hit the test button and it flashes and the Green light (not the charging Green light) came on saying there was enough light. So, is the Flash completely charged and the Green charg light burned out or is there another problem?

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  • OldOne1 Jan 28, 2008

    When left to 'charge' for a lenght of time, the red light blinks while the unit ischirping - just no green light.

  • hobbified May 11, 2010

    If you let it charge for a good while, and it "chirps", does the red light stay on steady, or does it flash?



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Then I'd say it's a reasonably sure thing that the green light is just burned out, The lights are supposed to be off at first, then red when there's a partial charge, then green when there's a full charge, then flashing between red and green when the "battery saver" kicks in. If you're seeing off, then red, then off, then flashing red, then that means everything in the charging circuit is working perfectly, there's just no green light.

Posted on Jan 29, 2008


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Trying to find a replacement for a 30 year old thyristor semi-conductor proved to be fruitless. 

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