I've got a sound system that uses around 9 watts of standby power which is quite a lot as many would argue. Every time i switch it completely off it loses it's settings for individual volume for all the channels.
To prevent that i thought about finding out where the settings are stored, figuring out the power supply and powering the memory with a battery.
Does anyone think somethin like that would be possible?
I haven't opened it yet so i can't tell what type of chip is used.
The steps i would take are:
-figure out where the main controller is (settings probably stored in RAM)
-get the data sheet for power supply pins
-hook it up to a battery and see what happens