Nikon D50 Teardown & Review *Part 2/4* Electronics - How it works / older Nikon DSLR quality... скачать в хорошем качестве

Nikon D50 Teardown & Review *Part 2/4* Electronics - How it works / older Nikon DSLR quality...

http://www.fixyourcamera.org/nikon-d50 Nikon D50 Teardown & Review * Part 2/4 * Electronics. Let's see how a DSLR electronics work. I'll show you all electronic boards, important parts, explain what they all do and list the most common problems within Nikon D50 and most other DSLR's. I also explan where is ISO adjusted within a DSLR, what ADC chips, SDRAM memory, processors and other parts do... This is always my favorite subject. There are 5 boards within this camera plus the sensor. Let’s see what they do and then I’ll show you the most common problems. Mainboard, and sub-mainboard – and here is, right away, something that I don’t like to see in cameras. This hard nonflexible board to board connector between them. In case of any even minor impact either one or both of these connectors will get detached from the board, often causing a lot of damage. In some cameras with thin plastics this can happen even without any impact. And quite often it’s very hard to repair this kind of problem and rebuild traces so either one or both of these boards have to be replaced. And this can be expensive. There is no such problem with flex cables. I’ll talk about this in future videos, Canon 6D for example has an interesting solution to this problem. Anyway, these 2 boards control most camera functions, buttons, motors, position encoders, focus adjustment data is here and part of firmware is also located here. Flash board. This is the main igbt transistor. Flash capacitor 330 V/280 µF. These rarely fail. The flash controller chip is located on the main board. In this model, which is a bit unusual. And there is a fuse over here. Power board. The main power fuse is here, power management chip, and a bunch of caps and inductors. Again, it’s a power supply that creates many different voltages for the entire camera. 6MP CCD sensor. Yes, it is CCD not CMOS. Also it has a built in electronic shutter. So this camera works slightly different than most other DSLR’s. The mechanical shutter is more like a sensor dust cover. If you set some higher shutter speeds, the electronic shutter takes over. One huge advantage is that you can sync your flash or trobe at extremely high speeds. And some people use this camera just for this reason. So if you need a cheap 50-100 bucks Nikon DSLR with electronic shutter. This could be a good one. And as with most sensors, there is a low pass filter on top of it, the real sensor is on the bottom and there is a rubber seal between these 2 pieces of glass. Okay, now let’s take a look at the digital board. So this is the part where all digital signal processing is happening. And this is probably the most important part on this board – the main processor. It’s like the one in your PC except it has a bit more functions and is application-specific. This part does all the JPEG compression, white balance adjustments, all in camera effects, noise reduction, etc. It’s directly connected to RAM memory, SD card, USB socket and some other things. Next is RAM memory. This is 256 mega bits SDRAM memory, or otherwise 16 mega bytes. And its running at 166 MHz. It’s exactly like a RAM memory in your PC, there are 2 identical chips like this on this board. So in total it’s 512 Mb or 32 MB, not a lot in case of this older camera. And it’s dual channel, having 2 smaller chips instead of one large simply makes accessing the memory faster, again, exactly as in your computer. Some cameras have 4 or more memory chips. Moving on, next is a 16 Mb or 2 MB flash memory. Nikon D50 teardown all parts:    • Nikon D50 Teardown & Review - ALL PARTS   Hi, I'm Mike, independent camera repair tech with over 10 years of experience, working specifically on cameras and lenses. I love it! And from time to time I record a video showing some teardowns, reviews, repair tips of photo gear. Subscribe if you wish, there is more coming soon! All questions are welcome here!!! Although, I definitely don't know all the answers… :) TEARDOWN GALLERIES: http://www.fixyourcamera.org/teardown... Facebook:   / fixyourcameraorg   Twitter:   / fixyourcamera   Flickr: https://flic.kr/s/aHsknv76zU Google+: https://plus.google.com/+Fixyourcamer... http://bit.ly/1SVQc22 - Canon 6D Teardown & Review - All Parts http://bit.ly/1VwwX6d - Nikon D50 Teardown & Review - All Parts http://bit.ly/1WL1Oec - Camera and Lens Repair Tips - Playlist http://bit.ly/1WhKm0s - All FixYourCamera.Org videos    • How to remove soft aluminum LENS NAMEPLATE...   - How to remove nameplates without leaving any marks…    • Lens spanner wrench – how to avoid a disas...   - Lens spanner wrench – how to avoid a disaster…    • How to deal with stuck lens parts without ...   - How to deal with stuck lens parts without causing damage !    • Is Tokina 100mm f2.8 macro lens worth it? ...   - What's inside a Macro Lens - Tokina m100 Teardown & Review - Very Good, but not greasy enough :)