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Author Topic: DCS-932L artifacts and noise fix  (Read 6672 times)

KoRnflakez

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DCS-932L artifacts and noise fix
« on: January 14, 2016, 02:22:36 PM »

Hello together!

On my DCS-932L I had some bad issues concerning noise and artifacts during night-mode with WLAN turned on. So I read a lot about fixing those errors in this forum and decided to try the method described in this thread http://forums.dlink.com/index.php?topic=52839.0.

I also noticed that there are kinds of board layouts which differ from my 932L Rev. A1. In the thread mentioned above the two points to solder the 470 uF capacitor on are named differently, but the arrangement on my board seemed to be the same. So I soldered the capacitor on the downside of L6 (-, negative) and the upper side of C98 (+, positive). And I can remark: It works better as I expected it would (see pictures). Another user with the 930L Rev. A1 had no success with this method, but in my case it seems to have an effect on the picture at night. There are some of the white lines left and the picture seems a little less sharp than before, but in the end it works.

By the way, with exactly the same settings and mounting position, motion detection doesn't detect and record the noise lines as an event anymore. Before this was a huge problem, even with low sensitivity adjusted in the settings of the camera, it recorded lots of fail events by detecting the noise as a real movement.

The first picture (recorded a few days ago) shows the old status, the second shows the status after soldering the capacitor onto the board.
https://drive.google.com/file/d/0B781NtxhLv_eeDI4czAtM24zd0k/view?usp=sharing
https://drive.google.com/file/d/0B781NtxhLv_eOHF1bXJCRGlxWDQ/view?usp=sharing
« Last Edit: January 17, 2016, 12:42:16 AM by KoRnflakez »
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FurryNutz

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Re: DCS-932L artifacts and noise fix
« Reply #1 on: January 19, 2016, 09:06:39 AM »

Awesome information, glad the modification worked for you.
Hope this helps future users.  ;)
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photogd

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Re: DCS-932L artifacts and noise fix
« Reply #2 on: March 21, 2016, 10:00:22 AM »

Bump because I need to do this and the pictures in the original thread are broken. Anyone can make a video or take pics?
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FurryNutz

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Re: DCS-932L artifacts and noise fix
« Reply #3 on: March 21, 2016, 10:05:12 AM »

Links are working from this thread.

Bump because I need to do this and the pictures in the original thread are broken. Anyone can make a video or take pics?
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photogd

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Re: DCS-932L artifacts and noise fix
« Reply #4 on: March 21, 2016, 08:09:25 PM »

Links are working from this thread.

Bump because I need to do this and the pictures in the original thread are broken. Anyone can make a video or take pics?

the pictures only show the before/after results of the video feed.

They don't show where or what to solder. Those pictures are missing now, link broken.
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FurryNutz

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Re: DCS-932L artifacts and noise fix
« Reply #5 on: March 22, 2016, 06:38:32 AM »

I would PM the OP and see if he is still around.
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photogd

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Re: DCS-932L artifacts and noise fix
« Reply #6 on: March 24, 2016, 02:30:52 AM »

I actually figured it out, fixed my camera.

Because the steps in this thread aren't totally clear and a lot of pictures are missing, I made a YouTube video for anyone that wants to do this fix. Maybe a mod can put my video in the sticky?

https://youtu.be/haLfYZp0glw

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