Dissected my dead 20D...with photos!

Moderated by: guardian

Visit the FM Store · Image Upload · Buy & Sell
FM Forum Rules
Canon SLRs, primes, and zooms lenses reviews

FM Forums | Canon-mount SLRs | Join Image Upload

3 end

Archive 2006 · Dissected my dead 20D...with photos!

gmr2048
Offline
Image Upload: Off

p.2 #1 · Dissected my dead 20D...with photos!

The toe-tag lists my repair number, name, date and camera type and serial number. Some info has been blurred to protect the innocent.

-gary

Nov 03, 2006 at 11:06 PM

yogi3939
Offline
Image Upload: On

p.2 #2 · Dissected my dead 20D...with photos!

gmr2048 wrote:
The toe-tag lists my repair number, name, date and camera type and serial number. Some info has been blurred to protect the innocentGUILTY.

-gary

Damn that hurts. Looking at that gives me the creepy crawlies. Boy that salt water sure does a number on things doesn't it.

I must be just as big a geek as you though. I have taken dead high tech toys apart to see what makes them tick too.

Nov 04, 2006 at 12:11 AM

YoJoe
Offline
Image Upload: Off

p.2 #3 · Dissected my dead 20D...with photos!

A Pathologist seeks to find what killed a person.
A Photologist seeks to find how the camera died...I was able to see all your pics without passing out(all the gore without the blood!)
Requiem to your camera

Nov 04, 2006 at 12:26 AM

4x4rock
Offline
Image Upload: Off

p.2 #4 · Dissected my dead 20D...with photos!

If only you can put all the pics into an animated GIF. That would be the best animated GIF eva!.

Nov 04, 2006 at 12:55 AM

RGS65
Offline
Image Upload: Off

p.2 #5 · Dissected my dead 20D...with photos!

Cool. Neat to see the shutter.

Nov 04, 2006 at 01:17 AM

racoll
Offline
Image Upload: On

p.2 #6 · Dissected my dead 20D...with photos!

Fascinating display, Gary. Thanks for the 'tour'. It's kind of funny to see the Sony name in the midst of all that Canon hardware, and yes, after looking at all of this I understand why these things cost so much. Sort of.

Andy

Nov 04, 2006 at 01:44 AM

gmr2048
Offline
Image Upload: Off

p.2 #7 · Dissected my dead 20D...with photos!

I've added more photos to the gallery. These are of the Digic chip as well as the front and rear of the circuit board on which it's installed. I've placed them in the series where they belong chronologically.
http://www.pbase.com/gmr2048/20d-dissection

Still gotta see what I can get for the other requested shots. Hopefully this weekend.

--
-gary
http://www.eighteenpercent.net

Nov 04, 2006 at 06:48 AM

Tom_W
Offline
Buy and Sell: On

p.2 #8 · Dissected my dead 20D...with photos!

Ahhh, some digic shots! Thanks, Gary.

Nov 04, 2006 at 10:34 AM

Jae Park
Offline
Image Upload: Off

p.2 #9 · Dissected my dead 20D...with photos!

Applause for a truely bold contribution.

Thanks for sharing the story with us.

Nov 04, 2006 at 11:05 AM

Paradisiac
Offline
Image Upload: Off

p.2 #10 · Dissected my dead 20D...with photos!

Thank you for sharing this with us.

I found it very interesting.

I love to see the inside and workings of electronics. But, I'm not gonna take apart my camera just to quench my curiosity!

Nov 04, 2006 at 12:33 PM

Michael-M
Offline
[ X ]

p.2 #11 · Dissected my dead 20D...with photos!

kinda wierd that the chip in DPR's review says "Digic II", but the one in you pics doesn't eh?...........makes me wonder if we all got what we paid for.

your picture postings are awesome...............let's see you put it all back together..........

thx

Nov 04, 2006 at 01:48 PM

Michael-M
Offline
[ X ]

p.2 #12 · Dissected my dead 20D...with photos!

one question, is the sensor sealed to the frame behind the shutter?

Nov 04, 2006 at 01:51 PM

timnosenzo
Offline
Image Upload: On

p.2 #13 · Dissected my dead 20D...with photos!

That was cool, thanks!!

Nov 04, 2006 at 02:03 PM

nads
Offline
Buy and Sell: On

p.2 #14 · Dissected my dead 20D...with photos!

Unless I'm missing a bit, it looks like there aren't too many critical parts located in the right grip of the body. They should change the form factor of the next rebel to resemble the AE-1. I'd buy one just because it looks cool.

Nov 04, 2006 at 03:11 PM

JohnJ80
Offline
Image Upload: Off

p.2 #15 · Dissected my dead 20D...with photos!

very cool. thanks for this!

Look at that corrosion. Wow. Given the condensation threads that are going on now, this is a great resource. True, this is sort of worst case - a salt water dunking, but very instructive to those discussions as well.

J.

Nov 04, 2006 at 03:42 PM

Xavier Rival
Offline
Image Upload: Off

p.2 #16 · Dissected my dead 20D...with photos!

Ouch!!! Just looking at these pictures hurts. Sorry for the loss. But, as others said, this set of pictures are a nice contribution.

Nov 04, 2006 at 04:41 PM

Tom_W
Offline
Buy and Sell: On

p.2 #17 · Dissected my dead 20D...with photos!

nads wrote:
Unless I'm missing a bit, it looks like there aren't too many critical parts located in the right grip of the body. They should change the form factor of the next rebel to resemble the AE-1. I'd buy one just because it looks cool.

One major critical part inside the right grip - the battery!

Actually, it's quite amazing how much circuitry is stuffed into these bodies.

Nov 04, 2006 at 04:55 PM

pauljas
Offline
Image Upload: Off

p.2 #18 · Dissected my dead 20D...with photos!

you could use this experience to learn how to do your own custom conversions such as removing the AA filter or IR conversion. IR conversion runs$350. Thanks for posting

Nov 04, 2006 at 05:19 PM

nathanlake
Offline
Image Upload: On

p.2 #19 · Dissected my dead 20D...with photos!

Just a hint....If you get salt water inside your camera, and you want any hope of it being fixed, immediately remove the batteries, flush it with fresh water and then as soon as possible flush it with alcohol. Remove the back and allow it to dry.

Salt water will begin to corrode contacts within minutes. Fresh water will take a bit longer and alcohol does minimal corrosion (although it may affect other things).

Nov 04, 2006 at 05:36 PM

dgsphoto
Offline
Image Upload: Off

p.2 #20 · Dissected my dead 20D...with photos!

nathanlake wrote:
Just a hint....If you get salt water inside your camera, and you want any hope of it being fixed, immediately remove the batteries, flush it with fresh water and then as soon as possible flush it with alcohol. Remove the back and allow it to dry.

Salt water will begin to corrode contacts within minutes. Fresh water will take a bit longer and alcohol does minimal corrosion (although it may affect other things).

Definitely worth a try if one is on the brink of loosing the equipment. Fresh water might work wonders. But don't forget to to detach the parts to be "washed" from the main body before trying it. And after the fresh water, use lots and lots of canned air.

Nov 04, 2006 at 06:14 PM

gmr2048
Offline
Image Upload: Off

p.2 #21 · Dissected my dead 20D...with photos!

Michael-M wrote:
kinda wierd that the chip in DPR's review says "Digic II", but the one in you pics doesn't eh?...........makes me wonder if we all got what we paid for.

Being semi-paranoid, that's exactly what I thought when I saw "Digic" and not "Digic II". I'm guessing the one on the dpreview site is a marketing shot/illustration, seeing as how that chip doesn't have any of the other identifying information that mine does.

-gary

Nov 04, 2006 at 06:38 PM

gmr2048
Offline
Image Upload: Off

p.2 #22 · Dissected my dead 20D...with photos!

Michael-M wrote:
one question, is the sensor sealed to the frame behind the shutter?

Yeah, the sensor seems to be bonded to it's frame, seen in this image,

http://www.pbase.com/gmr2048/image/69559262

with some black epoxy-looking stuff. I removed the two screws you can see in that image, as well as one in the rear, that appear to attach the sensor to the sensor frame, but the two stayed locked together.

-gary

Nov 04, 2006 at 06:45 PM

nads
Offline
Buy and Sell: On

p.2 #23 · Dissected my dead 20D...with photos!

Nah, you don't need a battery!

The XT grip is so small that they could change the form factor of the battery and pull off that body style if they wanted to. Kind of like Leica did with that new/old one of theirs.

10DFT wrote:
nads wrote:
Unless I'm missing a bit, it looks like there aren't too many critical parts located in the right grip of the body. They should change the form factor of the next rebel to resemble the AE-1. I'd buy one just because it looks cool.

One major critical part inside the right grip - the battery!

Actually, it's quite amazing how much circuitry is stuffed into these bodies.

Nov 04, 2006 at 08:15 PM

Michael-M
Offline
[ X ]

p.2 #24 · Dissected my dead 20D...with photos!

thx for the answers Gary.................in my younger years i use to take apart almost anything i bought to see what made it tick................you just saved me a lot of time........

Nov 04, 2006 at 10:14 PM

JohnJ80
Offline
Image Upload: Off

p.2 #25 · Dissected my dead 20D...with photos!

Michael-M wrote:
thx for the answers Gary.................in my younger years i use to take apart almost anything i bought to see what made it tick................you just saved me a lot of time........

.... and money.

J.

Nov 04, 2006 at 11:47 PM


FM Forums \| Canon-mount SLRs \| Join Image Upload 1 2 3 end