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A700 power switch

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Post Options Post Options   Quote fxcarden Quote  Post ReplyReply Direct Link To This Post Topic: A700 power switch
    Posted: 19 January 2019 at 20:41
Hello (it has been a long time since I have visited - sorry)

My trusty A700 has developed a problem with the power switch where it is extremely hard to turn on and off.

Googling around I found and tried a trick (warm it up with a hair drier) and when I do that it does get softer but still doesn't feel right.

I was wondering if anyone has run into this or can suggest any solutions. Not sure if this camera is repairable anymore, and I cannot afford a new body.

Thanks.
FC
 



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stiuskr View Drop Down
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Post Options Post Options   Quote stiuskr Quote  Post ReplyReply Direct Link To This Post Posted: 19 January 2019 at 21:23
Should be an easy fix but you'll need to disassemble the camera to get to the switch so you can scrub it clean and relube it, and with the switch being in the top plate every other body plate will have to come off first. Years ago I replaced the switch block on my a700 and although tedious it's not that hard to do, all you'll need is a good fitting small philips screw driver, a flat blade screw driver to lever the ribbon connectors apart and flat bladed tweezers to reconnect them and of course the Service Manual which can be downloaded from the following link to rovhazman's Dropbox. One more thing though is to make sure that every screw goes back to it's original place, they may look the same to the naked eye but there's different thread pitches on some of them, take a piece of corrugated cardboard and draw all the cover plates on it and poke a hole to place the screws on the drawings as they come out.

https://www.dropbox.com/s/kd8mlyxwiozdlgh/SONY%20DSLR-A700%20SERVICE%20MANUAL%20LEVEL%202%20VER%201.4%202008.10%20REV-2%20%289-852-212-35%29.pdf

Edited by stiuskr - 19 January 2019 at 21:26
Rob Suits Jr.
a99M2 a99 a77 a700 KM7D|Min24/2.8 Min35/2 So50/1.4 So50/2.8 Min85/1.4G Tam90/2.8 Tam180/3.5|Tam17-50 CZ24-70G2 KM28-75D So70-200G1 So70-300G So70-400G1| SonyF60 AD200R2
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fxcarden View Drop Down
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Post Options Post Options   Quote fxcarden Quote  Post ReplyReply Direct Link To This Post Posted: 20 January 2019 at 18:51
Thank you sir.   I will look into this.
FC
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carusoswi View Drop Down
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Post Options Post Options   Quote carusoswi Quote  Post ReplyReply Direct Link To This Post Posted: 03 February 2019 at 03:47
I posted on this problem some time ago. I do not remember which brand or type of lube I purchased, but did my best to make certain it would not eat my cam's body plastics. One drop of lube on a toothpick applied to the switch fixed the problem, and it remains fixed to this day.

Look for my post. My problem is exactly as you describe. No need to disassemble the camera.

Good luck.

Caruso
A1/7//900/Sony1870/Sig50mmf2 .8DGMacro/Tam1118 DII/Tam200500/Tam60mDIIIF2Macro/F56AM/Viv283/Max9000/Minolta4000/Min3570/Max9/Min1002.8 D/Sony50m1.4/Min85 1.4/MinAF35105/Min AF500F8
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Post Options Post Options   Quote carusoswi Quote  Post ReplyReply Direct Link To This Post Posted: 03 February 2019 at 07:41
I checked on the type of lube that I used. A simple silicon spray. Of course, you don't want to spray directly from the can onto your camera, even with the little "straw" nozzle attached, as so much product will spray out as to go everywhere.

Use a toothpick, put just enough lube onto the toothpick that you get a small bead of lube showing at the tip (ready to drip off) and direct that bead onto any edge of the switch. The lube will "bleed" its way around and under the switch to get the job done. It will take all of five seconds of your time.

The switch is just a sliding mechanism whose parts are all either topside of the top plate, or just below the top plate's surface. No need to attack this problem from inside the camera.

Report back. I'd love to hear that it worked out for you.

I've never before experience a switch seizing up as this one did, and I remain curious to this day as to the cause.

Again, best of luck.

Caruso
A1/7//900/Sony1870/Sig50mmf2 .8DGMacro/Tam1118 DII/Tam200500/Tam60mDIIIF2Macro/F56AM/Viv283/Max9000/Minolta4000/Min3570/Max9/Min1002.8 D/Sony50m1.4/Min85 1.4/MinAF35105/Min AF500F8
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Post Options Post Options   Quote fxcarden Quote  Post ReplyReply Direct Link To This Post Posted: 04 March 2019 at 13:50
I just saw this....thank you.......I will try that.


Would you happen to remember the actual spray you used?
FC
 



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stiuskr View Drop Down
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Post Options Post Options   Quote stiuskr Quote  Post ReplyReply Direct Link To This Post Posted: 04 March 2019 at 14:30
Nothing special about silicone sprays but I'd recommend the CRC brand, go to your local auto parts store and grab a can but they're not cheap. But it is winter so grab a cloth towel, spray some silicone on it and wipe down your car's rubber weatherstrips to keep them from freezing shut.
Rob Suits Jr.
a99M2 a99 a77 a700 KM7D|Min24/2.8 Min35/2 So50/1.4 So50/2.8 Min85/1.4G Tam90/2.8 Tam180/3.5|Tam17-50 CZ24-70G2 KM28-75D So70-200G1 So70-300G So70-400G1| SonyF60 AD200R2
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fxcarden View Drop Down
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Post Options Post Options   Quote fxcarden Quote  Post ReplyReply Direct Link To This Post Posted: 04 March 2019 at 22:05
Well................IT WORKED !!!!!

Thank you so much for the suggestion. I got it to "good enough".   I may repeat the process down the road to get it perfect.

Think of all the money I didn't spend on a new A77ii, or an A7Riii like my coworker was talking me into buying.....

My bank account/beer fund thanks you.    
FC
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