Question about Sigma EF-500 DG for TTL Flash

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I can not get the power to turn on. I believe it may have corrosion form leaving batteries insdie the flash.

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Clean as much corrosion as you can from the contacts. If you've already done so then the corrosion has spread to the wires connected to them and will need to be replaced. This means opening up the unit and unsoldering the old wires between the contacts and the circuit board and replacing them with new ones.

You'll need to take great care as a flash capacitor can store a lethal charge, and you'll also need good soldering skills to both ensure that the new joints are sound and that you don't put too much heat into the circuit board causing damage.

The actual repair though just costs a couple of pieces of wire and a bit of solder, so is very cost effective if you have the tools and skills.

Posted on Sep 03, 2010


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