The mode wheel usually consists of 2 or more metal fingers that slide over gold plated segments on a circuit board as the wheel is turned, so making contact with different circuits to select the different modes. To be realistic, your best bet is to put a whatch on eBay for the same make and model of camera offered as “spares or repair”, but with a different fault. They go pretty cheaply. Practice disassembly on this, following whatever guides and videos you can find online. You should then be well placed to install the necessary parts (probably the entire top panel) on your camera with a spare from the one from eBay. If you like, you can then try taking apart the dodgey mode wheel from yours - it may be a destructive process - to see what’s inside and whether you might have been able to fix it, perhaps by increasing the pressure of the fingers or cleaning the tracks.
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The mode wheel usually consists of 2 or more metal fingers that slide over gold plated segments on a circuit board as the wheel is turned, so making contact with different circuits to select the different modes. To be realistic, your best bet is to put a watch on eBay for the same make and model of camera offered as “spares or repair”, but with a different fault. They go pretty cheaply. Practice disassembly on this, following whatever guides and videos you can find online. You should then be well placed to install the necessary parts (probably the entire top panel) on your camera with a spare from the one from eBay. If you like, you can then try taking apart the dodgey mode wheel from yours - it may be a destructive process - to see what’s inside and whether you might have been able to fix it, perhaps by increasing the pressure of the fingers or cleaning the tracks.
The mode wheel usually consists of 2 or more metal fingers that slide over gold plated segments on a circuit board as the wheel is turned, so making contact with different circuits to select the different modes. To be realistic, your best bet is to put a whatch on eBay for the same make and model of camera offered as “spares or repair”, but with a different fault. They go pretty cheaply. Practice disassembly on this, following whatever guides and videos you can find online. You should then be well placed to install the necessary parts (probably the entire top panel) on your camera with a spare from the one from eBay. If you like, you can then try taking apart the dodgey mode wheel from yours - it may be a destructive process - to see what’s inside and whether you might have been able to fix it, perhaps by increasing the pressure of the fingers or cleaning the tracks.