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The Nikon Coolpix B700 is a compact point-and-shoot camera manufactured by Nikon from early 2016. Features include built-in Wi-Fi®, NFC and Bluetooth® low energy (BLE), 20.2 megapixel RAW images, and 4K Ultra High Definition (UHD).

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blank lcd on camera

Nikon coolpix B700 intermittently LCD screen is blank (dark)

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Hi,

When the screen goes dark try shining a torch at an angle close to the screen and check for images on the screen. They will be very faint if they are there at all.

If there are images to be seen then there may be a backlight problem with the LCD display

Here’s the ifixit Nikon Coolpix B700 LCD Screen Replacement guide that may help.

Use it to gain access to the screen so that you can check if the flex cable connections are OK. The smaller cable is for the screen’s backlight power supply.

If the problem is in the screen it will have to be replaced as it cannot be repaired. Search online for Nikon Coolpix B700 LCD screen to get results for suppliers that suit you best

Update (03/09/2022)

Hi,

I’m wondering if the problem is connected to the eye sensor in the EVF - electronic viewfinder

Here’s the section from the user manual that shows what the sensor does.

Try turning the viewfinder setting to off and check if the LCD stays on - see image for details

Block Image

(click on image to enlarge)

Update (03/07/2022)

@Peter Burrows

Not sure where the sensor is but from the image in the manual it may be to the right side of the evf screen (see oval shape in image) and to the left of the monitor button.

I can only suggest that you gently clean the sensor area with a slightly damp Q-Tip (hardly wet at all, definitely not dripping, as you don't want any liquid to penetrate the camera - use clean water or Isopropyl Alcohol) in case a film or coating etc is covering the sensor and so lowering the amount of light available to the sensor somehow, making it more sensitive than it should be.

There isn't a protective peel off clear plastic cover (as per new mobile phone screens etc) over the evf/sensor area by any chance?

If that doesn't fix it, with the EVF setting back to ON, can you turn on the LCD screen when it is off, by pressing the monitor button -see image above for location?

If so you could either leave the setting on and use the monitor button when you want the LCD display or set the setting to off and have a permanent LCD display although it may be preferable to have the LCD display off if not actually using the camera at the time even though camera is on so to speak, so as to prolong the battery as the evf will use less power than the LCD screen.

Presumably there is a display in the evf, you never said?

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5 comentarios:

Thanks for trying to help.

I tried as suggested, and in the process I discovered that the blank lcd suddenly springs back into life if I shine a bright light onto it/the camera itself (I used a lamp rather than a torch).

It seems that brightly illuminating the rear of the camera bring the lcd to life.  Switch off the light and the lcd goes instantly completely dark.

Regards,

peter burrows

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Thats brilliant... you are absolutely right. Having turned off the EVF I now find the lcd screen works consistently. Is there an easy fix or shall I just leave the EVF permanently Off? In practice I virtually never use anything except the screen. I can live without the viewfinder.

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Marvellous... you fixed it. Yes the elf works normally. By cleaning the oval shaped sensor window with Q-tip and Isopropyl Alcohol) as suggested, I find that with the EVF auto setting turned back to ON, the camera works normally. Thank you SO much for your helpful advice. Its my first time with iFixit...How do I reward you?

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@Peter Burrows

Glad that it was fixed.

You may have to keep a check on it in case it happens again sometime in the future. It could be something as simple as perspiration from your fingers (depends how you hold or operate the camera perhaps) or face (if using evf) getting onto the sensor window. If never cleaned, the build up over time would be enough to cause the problem

You can select my answer as the Chosen Solution, click on Accept Answer in the answer box. That way I get a few extra reputation points but more importantly others can see what the solution to the problem might be by the green Chosen Solution box that my answer/comments will be in. Here's How To Accept an Answer on ifixit

Cheers

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I also tried this method with the evf off and it corrected itself (must be in the switch) but have it on now and both evf and screen work perfectly in synch.

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