CANON A1 SHUTTER RELEASE MAGNET

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sz3r1

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hi, im looking for shutter release magnet for canon a1. It's quite costly on ebay due to the shipping fee from usa/cad to eu. For now, I can only place an order. Where can I do this in Europe with reasonable shipping costs?

Looking forward answers and further suggestions.
thxx (˶˃⤙˂˶)
 

monopix

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Why are you changing it? Release magnets rarely fail in themselves. Most problems are due to the magnet face becoming sticky. Have you tried cleaning it? You can test the magnet by applying 2V across it. That should make it release (polarity is important). The A1 does a battery check every time the shutter release is pressed. If the battery is low it won't energise the magnet so you might have a battery problem or the battery check circuit might not be working. There's also a capacitor that is discharged through the magnet coil. Might be the cause but I've never seen it. If the magnet is open circuit then it's not impossible to repair them. I've only ever seen it once and the break was right at the end so was an easy fix.
 
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sz3r1

sz3r1

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Why are you changing it? Release magnets rarely fail in themselves. Most problems are due to the magnet face becoming sticky. Have you tried cleaning it? You can test the magnet by applying 2V across it. That should make it release (polarity is important). The A1 does a battery check every time the shutter release is pressed. If the battery is low it won't energise the magnet so you might have a battery problem or the battery check circuit might not be working. There's also a capacitor that is discharged through the magnet coil. Might be the cause but I've never seen it. If the magnet is open circuit then it's not impossible to repair them. I've only ever seen it once and the break was right at the end so was an easy fix.

When I insert a new battery the camera drains all its energy within an hour. I took it for repair a few times n they told me the issue is related to the magnet and that it needs to be replaced. Do you suggest that I should clean it instead of changing it ??
 

bernard_L

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When I insert a new battery the camera drains all its energy within an hour. I took it for repair a few times n they told me the issue is related to the magnet and that it needs to be replaced.
?? I cannot imagine how a defective magnet might drain the battery.
Maybe the magnet circuit, i.e. the electronics that sends a pulse of current into the magnet winding to cancel (momentarily) the permanent magnetization. Maybe if the the electronics is defective and energizes the col continuously? Maybe, maybe...
In all cases, not the magnet itself. So do not waste money.

Read the troubleshooting manual mentioned in this post, and perform the tests, measurements.
 

monopix

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When I insert a new battery the camera drains all its energy within an hour. I took it for repair a few times n they told me the issue is related to the magnet and that it needs to be replaced. Do you suggest that I should clean it instead of changing it ??

That's nothing to do with the magnet.

Release magnets are a combination magnet, that is, a combination of a permanent magnet and an electro magnet. The whole point of them is that the permanent magnet holds the release mechanism without using any power or energy and only a short pulse is needed to energise the electro magnet briefly to cancel out the permanent magnet and release the mechanism.

If the magnet holds the mechanism and then releases it when you press the shutter release, then there is nothing wrong with it. If it fails to release the mechanism then, maybe, it needs cleaning but that won't help your battery issue. You have an electronic problem somewhere that's causing the battery to drain. As bernard_L said, get a copy of the manual. It may help or it may not but it will be somewhere to start.
 
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sz3r1

sz3r1

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?? I cannot imagine how a defective magnet might drain the battery.
Maybe the magnet circuit, i.e. the electronics that sends a pulse of current into the magnet winding to cancel (momentarily) the permanent magnetization. Maybe if the the electronics is defective and energizes the col continuously? Maybe, maybe...
In all cases, not the magnet itself. So do not waste money.

Read the troubleshooting manual mentioned in this post, and perform the tests, measurements.

i ll do. thank you.
 

Andreas Thaler

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hi, im looking for shutter release magnet for canon a1. It's quite costly on ebay due to the shipping fee from usa/cad to eu. For now, I can only place an order. Where can I do this in Europe with reasonable shipping costs?

Looking forward answers and further suggestions.
thxx (˶˃⤙˂˶)

Individual parts from dismantled cameras are often offered for sale at high prices. New spare parts are rare and also cost a lot.

It is often more advantageous to buy a complete camera as a stock of spare parts, especially if you often work on that particular model.
 

Andreas Thaler

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When I insert a new battery the camera drains all its energy within an hour. I took it for repair a few times n they told me the issue is related to the magnet and that it needs to be replaced. Do you suggest that I should clean it instead of changing it ??

Welcome at PHOTRIO!

I think it's great that you're describing this problem here. It's of benefit to all readers and knowledge is expanded 🙂

The problem you're describing could be a short circuit.

In the camera's circuit, the battery current is flowing more or less unhindered, a high current is flowing and the 6 volt battery is quickly drained.

One indication of this would be that a fresh battery quickly becomes warm or even hot.

It could be a faulty cable that is in contact with the camera's metal chassis, which is usually used to return the current in the circuit (ground). For example, if a cable is squeezed during assembly and the insulation is damaged as a result. Or a cable that has come off a soldering point and comes into contact with ground.

You can determine whether the camera has a short circuit by measuring the resistance between the battery contacts. If the resistance is low, that would be an indication. But that doesn't tell you where the error is and you need a comparison value. Therefore, I mention this method only for orientation purposes.

It is more effective to seek guidance in systematic troubleshooting.

There are detailed and understandable service documents for the Canon A-1. I would read up on troubleshooting there, you'll also learn more about the camera's technology.

Highly recommended:




 
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