Dead Sony a7r: Yesterday I grabbed my Sony a7r for a walk around the neighborhood to see what I could find. Checked to see if I needed a battery, it didn't come on. I tried a new...

saparoo Loc: Atlanta, GA

Yesterday I grabbed my Sony a7r for a walk around the neighborhood to see what I could find. Checked to see if I needed a battery, it didn't come on. I tried a new battery and it still didn't come on. I just used it a few days ago and it performed great. Any Sony users out there with suggestions? Thank you in advance.
Sylvia

dpullum Loc: Tampa Florida

I bought a Sony A65 with intermittent problems... polished the contacts on battery and in camera with a gadget purchased on line... but if needed crocus cloth 2000 grit or greater [Amazon] will do. Not working... polishing contacts is a harmless Perhaps.

dpullum Loc: Tampa Florida

I bought a Sony A65 with intermittent problems... polished the contacts on battery and in camera with a gadget purchased on line... but if needed crocus cloth 2000 grit or greater [Amazon] will do. Not working... polishing contacts is a harmless Perhaps.

Bridges Loc: Memphis, Charleston SC, now Nazareth PA

saparoo wrote:

Yesterday I grabbed my Sony a7r for a walk around the neighborhood to see what I could find. Checked to see if I needed a battery, it didn't come on. I tried a new battery and it still didn't come on. I just used it a few days ago and it performed great. Any Sony users out there with suggestions? Thank you in advance.
Sylvia

Check your battery charger. It may be malfunctioning.

chikid68 Loc: Tennesse USA

dpullum wrote:

I bought a Sony A65 with intermittent problems... polished the contacts on battery and in camera with a gadget purchased on line... but if needed crocus cloth 2000 grit or greater [Amazon] will do. Not working... polishing contacts is a harmless Perhaps.

Where online did you find the gadget or what is it called.

dpullum Loc: Tampa Florida

Sorry, I just hunted again and could not find the source. Where in my chaos is the tool. that is also a big question. It may be one of the short lived products that did not sell well enough to be profitable.

Alternate way.. hold the battery release to allow you to bounce the contacts of SD/battery against the contacts of the camera multi times, just the action of in/out rubbing action will remove oxidative film.

Lightly stoking contacts with pencil eraser may help on contact that can be readily reached.

leftj Loc: Texas

saparoo wrote:

Yesterday I grabbed my Sony a7r for a walk around the neighborhood to see what I could find. Checked to see if I needed a battery, it didn't come on. I tried a new battery and it still didn't come on. I just used it a few days ago and it performed great. Any Sony users out there with suggestions? Thank you in advance.
Sylvia

Better check is the batteries need a charge.

leftj Loc: Texas

Bridges wrote:

Check your battery charger. It may be malfunctioning.

Yeah - that too.

roaddogie

saparoo wrote:

Yesterday I grabbed my Sony a7r for a walk around the neighborhood to see what I could find. Checked to see if I needed a battery, it didn't come on. I tried a new battery and it still didn't come on. I just used it a few days ago and it performed great. Any Sony users out there with suggestions? Thank you in advance.
Sylvia

There is a Canadian product called Stabilant which increases conductivity on any metal mating surfaces and is an insulator on non mating parts. Try it on your batteries and contacts. I have used this for 10 plus years and it has cured many problems. It is not snake oil. Good luck.

alvin3232 Loc: Houston, TX

Time for a call to Sony Tech Support.
https://us.esupport.sony.com/support/s/callback?language=en_US
For assistance: 1-860-272-2100

Precision Camera Service and Repair
Authorized Repair Depot for Sony Electronics Inc.
(239) 768-7547

Alvin

leftj Loc: Texas

alvin3232 wrote:

Time for a call to Sony Tech Support.
https://us.esupport.sony.com/support/s/callback?language=en_US
For assistance: 1-860-272-2100

Precision Camera Service and Repair
Authorized Repair Depot for Sony Electronics Inc.
(239) 768-7547

Alvin

Precision Camera would be the last place I would go to.

rook2c4 Loc: Philadelphia, PA USA

leftj wrote:

Better check is the batteries need a charge.

Yes, with a multimeter. This should be the very first step, as it is the easiest to perform. Every household should have a multimeter! The simple ones are not at all expensive, under $10.

ORpilot Loc: Prineville, Or

dpullum wrote:

Sorry, I just hunted again and could not find the ... (show quote)

I have used the pencil eraser method for decades. It works great. 👍👍👍 Also, I have more than one battery charger just to be sure. Something else that works on laptops also it might work on your Sony. I place the dead laptop in the freezer over night and then try to start it up the next day while still frozen. I had a HP laptop that it worked well on.

BassmanBruce Loc: Middle of the Mitten

Sylvia, sorry I don’t have any ideas besides those already offered but pleas let us know the outcome in this thread.
Fwiw I have had precision camera repair a sony A-77 for me and their work and turnaround was excellent.
Best of luck!

delder Loc: Maryland

CAUTION with crocus cloth etc.
The carborundum dust is an insulation.
As posted, meter your battery.
If open circuit voltage is below rated output, battery or charger is in question.
A new 3rd party battery might be an affordable start or find another camera user who's battery you could try?
As many of my service manuals state, replace with known working part!