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FORUMS Nikon Cameras, Lenses & Accessories Nikon Cameras 
Thread started 11 Feb 2015 (Wednesday) 00:02
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D750 back from service - now screen broke

 
scotchtape
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Post edited over 4 years ago by scotchtape.
     
Feb 11, 2015 00:02 |  #1

Just got it back. Testing it for flare issue.

Put on lens hood. What the hell? Screen stopped working.
Also I did see some flare still, but now I can't confirm. :(

Here is one pic I snapped with some banding still I think.

I hope there is no "impact damage".
Le sigh. I have had this camera for 50% of the time I've owned it.


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scotchtape
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Post edited over 4 years ago by scotchtape. (3 edits in all)
     
Feb 11, 2015 15:47 |  #2

Update: Took it to Nikon Service Center.
Tech said main board needs to be replaced. - $380 job.

Not covered under warranty but "complementary" because I used a third party battery. While I am grateful it was not "impact damage" - I don't think it is the battery.
According to tech, battery might not provide enough power and damage main board. He specifically mentioned Live View drawing more power and being damaged because of it. Doesn't sound right to me but I am not going to argue while I'm there.
Maybe Nikon designed their cameras differently, but I haven't dealt with any electronics failing because of insufficient power (of course I could be wrong - I mean at least not because the battery "couldn't provide enough power").

I have gone through about 20 aftermarket batts and have had basically no problems with any of them (on Canon systems). Maybe 2 died early, but not sure if it was because of the freezing temps I used them in.

Never had one issue with the 10 Canon bodies I've bought and sold (T2i/T3i/60D/6D/5D3).

Owned Nikon for almost one month and been to the Service center 3 times now. Also got "blamed".

I will try to do a test on the battery and purchase an OEM battery and compare.
Admittedly not a battery expert, but assuming if I test the individual cells by recharging and discharging at 1C it should tell me something?
I have a turnigy 6s charger lying around. I think EN-EL15 is 2x 18500 cells?

Min discharge voltage should be around 2.75V right?




  
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DaveKosiba
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Post edited over 4 years ago by DaveKosiba.
     
Feb 11, 2015 16:23 as a reply to  @ scotchtape's post |  #3

We design lithium battery packs at my office. The 1C discharge will measure the capacity of the cells. The capacities will most likely be different as the cells will be different manufacturers. There are many manufacturers of cylindrical lithium ion cells. Min discharge voltage of a cell could be 3V, depends on the system. The battery pack could have a low voltage cutoff, or the camera could be designed to work down to 6V or lower. Never measured them.


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scotchtape
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Feb 11, 2015 17:02 |  #4

Thanks. I will set the min cut-off to 3.2V




  
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smythie
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Feb 12, 2015 02:49 |  #5

How would a battery not supplying enough power cause damage to the main board? Sounds like a bunch of BS to me


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scotchtape
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Feb 12, 2015 10:05 |  #6

Agreed. Fear mongering to get people to buy OEM batts.
Two Nikon D750s in the shop. :(




  
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enginyr
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Mar 05, 2015 20:16 |  #7

Status update?

Are the D750's that unreliable?


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Southswede
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Mar 06, 2015 09:18 |  #8

enginyr wrote in post #17462536 (external link)
Status update?

Are the D750's that unreliable?


Mine is working the way it is suppose to work.




  
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scotchtape
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Post edited over 4 years ago by scotchtape.
     
Mar 06, 2015 10:04 |  #9

Just got call that it is ready for pickup. So it spent another 3 weeks in shop.
Will pickup later today.

I have a battery charger but I did not have power supply.
I bought power supply but since charger has alligator clips I don't know how to make a casing for the battery cells... just tape them on with electrical tape???

Charger is Turnigy Accucel 6

Hopefully that is the end of the issues. Jeez.
Also did you guys see the D750 corrupt images thread on Adobe / FM forums...
I haven't encountered this yet, but one of my D750s has like 100 shots on it so who knows if it has it (the one in the shop!)




  
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D750 back from service - now screen broke
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