Repair your Canon EFS17-85mm Lens
In this post, I am going to guide you in the repair of a Canon EFS 17-85mm lens, which has a fairly common breakdown due to use.
The fault is an error message on the camera display which indicates "error 01" or "error 99" which tells us that there is a communication failure between the camera and the lens.
This is the cause of the error, its cost is around € 3, but if you want to take it to repair it will cost you the repair almost like a new one.
Step 3:
Remove the silver screws from the plastic part, it is exactly 8 screws, 5 of them remove the upper plastic part, and the remaining 3 release the lower part.
Step 4:
canon target
Remove the rubber ring. Underneath there are 3 black screws with a gold spacer each. We remove them and also note that there is a black sticker on the housing that we have to remove in order to discover a comb-shaped piece. This piece also has a silver screw. We remove it and separate the piece in the form of a comb. Now we can remove this part of the lens housing.
The fault is an error message on the camera display which indicates "error 01" or "error 99" which tells us that there is a communication failure between the camera and the lens.
Find out what is faulty
The first thing to do is find out which element is faulty, the camera, or the lens. It is very simple, we put another objective in the camera if the error is not reproduced, it means that the fault is in our objective, you put your objective in another camera and if the error is reproduced…. there you have the fault located.Buy the replacement
Canon EF-S 17-85mm F / 4.0-5.6 IS flex cable Then it is time to get down to work ... the first thing is to locate the part. I bought it at Amazon, putting in the search engine «Canon EF-S 17-85mm F / 4.0-5.6 IS flex cable«This is the cause of the error, its cost is around € 3, but if you want to take it to repair it will cost you the repair almost like a new one.
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I advise you to bring forth pictures of each screw and disassembled piece as a guide, then know again mount the lens.
Step 1:
canon target
Remove the 4 screws from the bayonet then on the side of the bayonet there are two micro-screws that fix the part where the lens contacts are. canon targeting these screws have been removed, we very carefully lift the bayonet from the opposite side of the contacts and proceed to remove the plastic piece, which goes with some plastic clips. canon target
Once the bayonet is removed, we find the upper plastic piece that covers the electronic plate of the objectives, we must lift it very carefully since it has a flex cable that we must disconnect.
Step 2:canon target
When we remove this cable, we will find the electronic board with 5 more connectors that we must disconnect the flex cables, some of them are simply disconnected by pulling the cable, but there are others such as those seen in the upper left part of the photo that must be lifted with small pliers the brown tab to release the cable. And on the left side of the photo another wider connector which has at its ends some small clips that by pulling them release the connector. Once all the connectors are released, we will be as in the photo.
Then remove the silver screw that fixes the electronic plate to the target and we will have the free plate to continue working with the target until we reach the part that we must change.
Repair of our canon lens step by step
Well, we get down to work, the main thing is to have a fairly large place to work and we arm ourselves with patience.I advise you to bring forth pictures of each screw and disassembled piece as a guide, then know again mount the lens.
Step 1:
canon target
Remove the 4 screws from the bayonet then on the side of the bayonet there are two micro-screws that fix the part where the lens contacts are. canon targeting these screws have been removed, we very carefully lift the bayonet from the opposite side of the contacts and proceed to remove the plastic piece, which goes with some plastic clips. canon target
Once the bayonet is removed, we find the upper plastic piece that covers the electronic plate of the objectives, we must lift it very carefully since it has a flex cable that we must disconnect.
Step 2:canon target
When we remove this cable, we will find the electronic board with 5 more connectors that we must disconnect the flex cables, some of them are simply disconnected by pulling the cable, but there are others such as those seen in the upper left part of the photo that must be lifted with small pliers the brown tab to release the cable. And on the left side of the photo another wider connector which has at its ends some small clips that by pulling them release the connector. Once all the connectors are released, we will be as in the photo.
Then remove the silver screw that fixes the electronic plate to the target and we will have the free plate to continue working with the target until we reach the part that we must change.
Step 3:
Remove the silver screws from the plastic part, it is exactly 8 screws, 5 of them remove the upper plastic part, and the remaining 3 release the lower part.
Step 4:
canon target
Remove the rubber ring. Underneath there are 3 black screws with a gold spacer each. We remove them and also note that there is a black sticker on the housing that we have to remove in order to discover a comb-shaped piece. This piece also has a silver screw. We remove it and separate the piece in the form of a comb. Now we can remove this part of the lens housing.
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Remove the 3 silver screws from the black cylinder. Then the 9 silver micro-screws and we remove the white plastic pieces that protect the micro-screws. This frees us the internal parts to reach the flex cable that we must change.
We must pay special attention to this black metal piece that is fixed by 2 black screws as shown in the photo. Until we remove them we will not be able to access the internal parts of the lens.
Step 6:
canon target removes the cylindrical piece and we have access to the diaphragm piece. We remove the screw that fixes the flex cable to the edge of the cylinder and we have already released the part that we must replace.
Step 7:
We remove the screw that fixes the metal plate to the flex cable and we can very carefully desolder and solder the replacement.
We can also find this complete replacement. So we can avoid soldering the flex cable with the following reference: yg2-2169-010 for about € 20.
It only remains to mount the lens in reverse order.
Once again we have managed to save a few € urillos and have our canon objective like new. If you are interested in photography, here we leave you another article that may be useful to you and if you are interested in Audiovisual Communication, here you will find all the information about our degree.
Remove the 3 silver screws from the black cylinder. Then the 9 silver micro-screws and we remove the white plastic pieces that protect the micro-screws. This frees us the internal parts to reach the flex cable that we must change.
We must pay special attention to this black metal piece that is fixed by 2 black screws as shown in the photo. Until we remove them we will not be able to access the internal parts of the lens.
Step 6:
canon target removes the cylindrical piece and we have access to the diaphragm piece. We remove the screw that fixes the flex cable to the edge of the cylinder and we have already released the part that we must replace.
Step 7:
We remove the screw that fixes the metal plate to the flex cable and we can very carefully desolder and solder the replacement.
We can also find this complete replacement. So we can avoid soldering the flex cable with the following reference: yg2-2169-010 for about € 20.
It only remains to mount the lens in reverse order.
Once again we have managed to save a few € urillos and have our canon objective like new. If you are interested in photography, here we leave you another article that may be useful to you and if you are interested in Audiovisual Communication, here you will find all the information about our degree.
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