Toshiba PDR-M81 digital camera mulfunction

[9isaiah9]

I run into this problem lately. It started with inconsistent powering, taking 2-3 times to presspower button to turn the camera on. And finally it gave up. The only way to power it up is ti use 5v DC adapter and it works fine. I am not able to take the camera outdoors anymore. I assume it should be easy fix unless some serious circuitry involved. Thanks for any input.