I can’t say what would be making your board shut down, though there are a couple of reasons the camera won’t turn on. It will not turn on if there is a wire or other internal component unplugged or unseated. The other I am aware of is when the battery door isn’t closed all the way. There’s a small lever that gets pressed when the door closes, telling the camera it’s closed and to allow power. I hope this helps.
Hi Steve. What pins are you trying to unsolder? You shouldn’t need to unsolder anything. Which step are you on?
I’m sorry, I don’t have access to a Mk II. If I do, I’ll post something up.
That’s great, Mathieu! I’m glad you were able to find and fix the problem. Enjoy your repaired camera!
I’d go through the menu first and make sure the shutter button is set up properly. Make sure the shutter activation hasn’t been set to another button on the camera or disabled. I’m not sure if that’s possible with the mk iii, but it should be a quick and easy check. Double check the revision of your replacement board. Where did you get it from? It’s possible it’s incompatible with your specific camera. Recheck all the connections, something may be amiss. Are any other errors showing up on the top lcd panel or the rear screen?
No, but you must be careful on the revision of the replacement board. It must match the board you’re replacing or your camera has a very good chance of not working right or at all. That happened to one of the cameras I tried to fix and now I just use it for spare parts. Good luck!
Check the card slot door. Near the top is a very small black plastic lever. If this is broken or bent back into the camera, the camera will not turn on. Everything on the camera is designed so that if a single cable, connector, etc. is not in place, the camera won’t even power on. This includes the battery door and card slot door.
Hi Franzkekko, sorry for the late reply. If you broke the little black plastic toggle, then no. You will need to replace the entire part. Without that toggle, the camera will not power on. It’s a safety feature to make sure the card reader door is closed.
Possibly. I wouldn’t mind working on a mkIV. The trouble is, I don’t have one to work on, yet. Thanks for the support!
Matteo, I haven’t had to remove the shutter before, so I’ll have to dig into one and get back with you. If nothing else, take a close look at the PDF attached to this guide with the parts blown up.
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