i have the series 4 tivo 746 and i was wondering what the voltages that the power supply puts out. if someone has torn down a tivo series 4 and reverse engineered the power supply. i know there is 5 and 12 and possibly 3.3 at the hard drive cable but i am not sure what the other voltages are. if someone has a pinout on the power supply. i suspect the reason for the symptoms of bad sectors is caused by a power supply on the edge of failure and is starving the system slightly. i found at http://www.hobbyking.com/hobbyking/store/__17100__Turnigy_Voltage_Protector_783333uf_3sec_.html basically it is a bunch of capacitors paralleled and as long as none of the pins exceed 15 volts i should be able to use these as a power stiffening device sort of like like why there are 1 and 2 f caps used in high power car sound systems.