I just bought a cheap color classic that, according to the last owner, simply stopped working one day. I figured it must be the PRAM battery, but that wasn't the case (replaced with a working battery). I've used the power switch and key to turn it on, nothing. I tried to short the ADB plug to force it on, still nothing. When I pull out the motherboard and flip the power switch in the back nothing happens. I thought I heard the speaker pop when I flipped it on once, but it might have been my imagination. Please help! Any suggestions would be greatly appreciated.