Also, clean the battery contacts. (youtubes for that?)
https://www.google.com/search?q=AV200&ie=utf-8&oe=utf-8#q=AV200+fujifilm&tbm=shop finds these for sale from about 20 dollars so I do not suggest you get it fixed.
Bob
Camera Manufacturer:Fujifilm
Camera Model:AV200
It also turns off if put at idle state for few seconds.I changed the batteries but still the problem persists.

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