![]() it can only fit in a certain way and you cannot get it wrong. If you cannot get it right the first time, keep trying. In the event this bit falls out and I know this has happened to some of you, the part fits right back to the moulding (left). Pay attention to the quick-release lock button inside which sits a tiny spring that can easily fall out although it’s not difficult to re-assemble. Once these screws come off, the metal foot assembly wiggles and you’ll see the quick-release mechanism and the locking mechanism. The connector only goes in one way so it’s impossible to get it wrong. I recommend disconnecting the cable assembly to make the job of servicing the foot much more convenient. Remove these screws to uncover the last quartet of screws that tighten the metal foot. This set of screws simply secure the cover that protects the circuit board from exposed. Start by removing the first set to second quartet of screws and a wiring connector to remove. There are three quartet of screws to remove in this DIY fix. Unfortunately this new design comes with a caveat as more and more user have discovered. The 580EX II has a heavy duty mounting foot and features a quick release locking mechanism. So, if you’ve landed on this page because your 580EX II is misbehaving: gross overexposure, ETTL switches to TTL and occasionally not firing, welcome to my club-membership is free □ It may be nothing more than just loose contacts that can be fixed quite easily. As far as I’m concerned, communication has always been very reliable-it was not broken and therefore needed absolutely NO fixing. I’ve owned previous models of Canon flashes namely 550EX and the original 580EX none of them had given me any communication problems over the years of hard use (there may be exceptions). When Canon released the Speedlite 580EX II, they made it more dust and water resistant, 20% shorter recycling time and improved communication reliability through direct contacts. I hate it when manufacturers roll out products that not only fall short of their promise but are evidently insufficiently tested. Also, if this is your first time, it helps to make a mental note of the order in which the items are taken apart. Please read Comment 23 and understand the risks before you attempt this DIY Fix. Unfortunately, the flashes problem wasn't so simple.The Road to Victory Begins With a Clean Sensor | SLR Focus Screen and Sensor Cleaning | Cleaning the EOS 5D MK II Viewfinder | Canon Hotshoe Micro-Switch Fix | Canon EF 70-200MM f/2.8 Rattle Fix | Canon Speedlite 580EX-II Flash Custom Function (PDF) I didn't see any evidence ofĬorrosion but, I took a bit of fine sandpaper to all of themĪnyway. That often works, otherwise, a bit of fine wet and dry.Īlways looking for the easy fix, checking the contacts was my first Just twirl the batteries around a few times (if possible). ![]() ![]() Little would stop it working and it may be that they just lookĭull. Have you checked for corrosion on the battery terminals? Even a 50/50 chance it will work if that's all that's wrong with the flash. ![]() Remove the battery, rebuild the flash and try it out. Then get a small 9 volt battery, an old half discharged one will do, and ideally a 1 kilohm resistor in series for protection but you can omit the resistor as there's not much to lose, and connect the battery in the correct polarity (+ to +, - to -) across the biggest capacitor you can see for 24 hours. To try to reform the dialectric in the reservoir capacitor you'll have to take the flash apart first. ![]()
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