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Sony A77ii damage due to corrosion - DIY fix

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chrismighton View Drop Down
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Post Options Post Options   Quote chrismighton Quote  Post ReplyReply Direct Link To This Post Topic: Sony A77ii damage due to corrosion - DIY fix
    Posted: 09 February 2015 at 05:05
I originally posted this on dpreview
http://www.dpreview.com/forums/post/55238101
and several people on the forum requested that I post the info here on dyxum. Hope the info helps some of you out! :)

So, my Sony A77ii got corrosion damage from 2 things.
1. Bringing it to Burning Man and the dust got into places it shouldn't ( risky but totally worth it )
2. The rain and moisture from subsequent camping and hiking in the pacific Northwest

These 2 things created the perfect storm of just enough corrosion to make my camera malfunction.

01/13/2015
I called Sony and they told me to send my camera to Precision Camera Repair. Which I did.

02/02/2015
Precision Camera sends my camera back, exactly the way I sent it to them, no repairs or anything along with a very simple print out stating that the camera is BER which I think means Beyond Economic Repair?? Not really sure. There were no other alternatives or descriptions on the single piece of paper they sent on how to go about repairing or proceeding from there.

Frustrated and without any other alternative, I decided to just start carefully taking the camera apart myself.

( This previous post about someone taking apart the previous A77 model helped me to get to a certain point http://www.dpreview.com/forums/post/50898361

When I got the back panel off of the camera, I saw some slight corrosion on the main board which I used 99% alcohol and a small paint brush to remove as much of the corrosion as I could.

I removed most of the pieces and connections on the camera without damaging or breaking anything, cleaned as much as I could with 99% alcohol, put it all back together, waited a day, then turned it back on but the camera was still not working properly.

2-6-2015
I took my A77ii camera apart again last night and went in deeper to see if I could find anything else that looked like it wasn't working properly. I ended up finding more corrosion under the main circuit board.

photos here
http://www.dpreview.com/forums/post/55245369

2-07-2015
IT'S WORKING!!!!!!!!!!!!

Hi! Great news! All functions of the camera have been restored this morning after gently removing all visible specs of corrosion!

Here's photos of the rest of the process I went through.

http://www.dpreview.com/forums/post/55252332

Everything worked!!!! Aperture wheel, shutter wheel, iso, menu buttons etc all returned to normal for all modes!!

So in conclusion, I can say that this process worked for me. My warranty is clearly void now but after being told by Precision Camera Repair that my camera was "Beyond Economical Repair" I knew fixing my camera by tearing it down and meticulously going through every piece I could was really my only choice.

After learning that it's absolutely possible to restore a camera with a simple tear down and cleaning process with household items, it's clear to me that Precision Camera Repair probably has a policy that says something like "If there's any slight sign of corrosion, don't even attempt to clean, repair or replace anything, just send the camera back immediately with a vague description of why". I understand that businesses like Precision Camera Repair need to adhere to budget and time limitations in order to stay on plan but quick rejections made by them are also why they lose business, trust and cultivate a tarnished reputation rather than gaining respect, trust and appreciation. With all that said, I still love my camera and am incredibly ecstatic to have it back in working order, ( fist of triumph in the air! )

Edited by pegelli - 09 February 2015 at 11:12
 



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Dr. Harout View Drop Down
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Post Options Post Options   Quote Dr. Harout Quote  Post ReplyReply Direct Link To This Post Posted: 09 February 2015 at 08:24
A true grit.
Congrats

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MiPr View Drop Down
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Post Options Post Options   Quote MiPr Quote  Post ReplyReply Direct Link To This Post Posted: 09 February 2015 at 08:37
Thanks Chris for a great contribution.
I'm noise-blind. And noise-about-noise-deaf too ... |   BTW, Dyxum Weekly Exhibitions don't grow on trees ...
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ddd View Drop Down
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Post Options Post Options   Quote ddd Quote  Post ReplyReply Direct Link To This Post Posted: 09 February 2015 at 08:58
No electronics repair center will try to repair a device with signs of fluid water or corrosion inside.

Even if you clean up any signs the device may stop working days or weeks or month later, and a repair center has to give you some warranty, that their repair will work. Your post show that it is a lot of work. Disassembling the top cover is possible, but for payed repair it is cheaper to replace the complete cover assembly. Your pics clearly show why

The reason is that the micro connectors are impossile to clean. Replacing them is expensive and often those parts are not available as separate spare parts.
It is impossible to inspect if a BGA (ball grid array chip) has corrosion between some "pins".

You may get lucky and your cam will work for a long time. If you are able to do it yourself it is worth a try. Thanks a lot for posting the pics
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jkp1 View Drop Down
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Post Options Post Options   Quote jkp1 Quote  Post ReplyReply Direct Link To This Post Posted: 09 February 2015 at 09:36
Well, A77II is a new cam. A trip to Burning Man and a camping trip shouldn't kill such new cam. What about coating of the circuit boards ? Complete coating ?
We had similar story about an A7R lately.

Clearly, Sony need to fix their production and weather sealing generally.
Unused stuff in stock: A700, 24-105, 28-135, Sony A100, beercan, 100-200, Sony 70-200f2.8 + teleconverter
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SnowFella View Drop Down
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Post Options Post Options   Quote SnowFella Quote  Post ReplyReply Direct Link To This Post Posted: 09 February 2015 at 09:41
That fine dust gets into everything though, and the moisture could just aswell of been caused by internal humidity from temperature swings. Add the 2 together and bob's your uncle, corrosion!
 



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IanL View Drop Down
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Post Options Post Options   Quote IanL Quote  Post ReplyReply Direct Link To This Post Posted: 09 February 2015 at 10:58
Originally posted by jkp1 jkp1 wrote:

Well, A77II is a new cam. A trip to Burning Man and a camping trip shouldn't kill such new cam. What about coating of the circuit boards ? Complete coating ?
We had similar story about an A7R lately.

Clearly, Sony need to fix their production and weather sealing generally.


Sony describes the a77II as "weather resistant" - not "weather sealed". It is not designed nor priced for extreme conditions.
Ian
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pegelli View Drop Down
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Post Options Post Options   Quote pegelli Quote  Post ReplyReply Direct Link To This Post Posted: 09 February 2015 at 11:16
Welcome to Dyxum Chris, and thanks for a great contribution. This will be helpful for other members here in case they start experiencing trouble in the future.

We'll probably copy it over to our "knowledge base" part of the forum (but leave a bread crumb trail to this place) so people can easier find it in the future. I've also made the links active/clickable.

You can see the April Foolishness 2021 exhibition here Another great show of the talent we have on Dyxum
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Bob J View Drop Down
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Post Options Post Options   Quote Bob J Quote  Post ReplyReply Direct Link To This Post Posted: 09 February 2015 at 11:25
Thanks for the posting Chris - I think it will be of great interest to others in the community... and welcome to Dyxum!
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Post Options Post Options   Quote MichelvA Quote  Post ReplyReply Direct Link To This Post Posted: 29 April 2015 at 05:01
Welcome to Dyxum Chris.
Impressive article!
Respect Observe Capture Enjoy
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