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p.3 #11 · Warning for A7R Users regarding water damage | |
I have been lurking around in FM for years, I feel this is some contributions from me...
What happened:
That display is still alive. Judging by the fact shutter speed and etc are visible, display interface to main board is still active, also means display driver IC is alive. The passive component on LCD is most likely damaged by water/moisture. My guess would be analog front short in a way that LCD gamma control is gone, white screen indicates liquid crystal is stuck open.
Why it happened:
The main body of camera is most likely ok. Moisture got into the gap between the display flex (the black cable) and display rear housing. Now, it seems like a huge gap there, but I am 100% sure there is pressure sensitive form adhesive there, but it is not water proof. Given enough water, it will make their way into read housing of display.
Why it is so expensive to replace:
It is actually not Sony's greed. The display module itself probably worth $30 max. That said, display is laminated onto front glass, the glass is LDA onto display chassis/read housing. The whole thing is attached onto another plate. BOM are not expensive, but labor and logistics do add cost, plus labor to exchange them.
Did you say that Sony provided a damaged body for YOU to replace by yourself? If so, pay special attention to seals, tapes, forms, they are there for a reason. After that, I would never take camera out in a foggy day. Doesn't matter how careful we are, we are not operators in production line, it will never be as good.
With above mentioned, I had designed display in product with open port (USB), it is still functional under 3 feet of water. I don't understand why Sony couldn't go extra mile to better protect these parts, nor they passed ALT in these state. water resistance (IPX7, not waterproof) is not hard to do, nano-coating, gasket... These techniques are out there, and Sony have $400 products on market right now with water resistance. I don't understand why they can't adopt that in $3000 camera.
With all good advises from others, please open up display and make sure there is no water BEHIND LCD. The front of LCD is sealed with LDA, the rear housing is place we should worry about. I had used my A7R in constant rain, not an issue after cleaning in and out, even with my shirt in public... 
Cheers...
 
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