Digital.Complex: Canon Rebel XSi - Digital.Complex

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#1 User is offline   aotsukisho 

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Posted 16 September 2014 - 05:45 PM

I got a Canon Rebel XSi not too long ago, and while the camera was in known disrepair (stuck flash, broken autofocus) I was able to fix or live with most of its shortcomings. One thing in particular irritated me, which was a spot of mold somewhere that would show up in the upper left corner of photos taken. I wasn't sure if it was in the lens itself or the camera body, so I took apart the lens first since it's easier (and cheaper should I mess it up).

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Here's the bottom of the lens, which is an 18-55mm IS kit lens

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pulling apart the rear cover

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Lots of stuff inside

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more ribbon attachments

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there was a plastic ring under the pcbs

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autofocus motor assembly removed

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Apparently this is a common problem, the autofocus flex cable fatigues and snaps right here

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Removing the zoom grip to access the screws underneath

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Three of these things, with plastic bushings

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Bushing removed

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Another flex cable mounted right here

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One lens assembly removed

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This is the sliding zoom assembly

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For now I removed the faulty flex cable completely, a replacement is on the way

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Extra pieces for now

I have a replacement on its way from Hong Kong, we shall see how easy it is to repair when it comes in

Links for reference
http://www.mobile01....ail.php?id=7554
http://marcowuen.wor...tive-autofocus/
http://www.usa.canon...huresAndManuals
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#2 User is offline   aotsukisho 

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Posted 14 October 2014 - 05:28 PM

Finally got the flex cable in. Now it's time to replace the old one

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packed in a plastic bag from China

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Comparing the cables. There's no noticeable visual difference

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Removing the outer lens

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Removing these two screws for the zoom guide

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Step by step the lens is coming apart

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Removing this piece that holds the two plastic inner pieces together

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Stick the new flex cable to the housing like so

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Now to get all these pieces back together.

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It took me two hours to get back to this point because I kept putting things back either in the wrong order or rotated 120 degrees off

It was worth it though, my autofocus works again! We shall see how long it takes for this flex cable to break, but when it does at least I have another one.
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