Electronics Repair Questions? Ask an Electronics Technician
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That is a problem of the power circuitry arrangement, mostly.
Can you post a photo of the circuitry in the product in question?
The power excess may have been 'shunted' through the aluminum strip by passing part of the power path through it, possibly. But I cannot tell without either schematics or a good photo.
Use the Reply To Expert function to let me know - and also, use the paperclip icon to add a photo file to your Reply.