Report "Infinity il120s wont power up. looking for a troubleshooting flow chart or schematic 3 year ols Infinity TSS-Sub4000 subwoofer just decided to not power on. Worked fine a week ago. Powered via a PureAV surge protector. All other gear powered by PureAV working, all outlets test fine, tried to power the sub by plugging into another wall outlet -- nothing. Seeking free copy of service manual and trouble shooting and repair advice"