I have a Tivo Premiere TCD746320 with an upgraded hard drive. Yesterday it started flashing 4 lights when powered on. I switched back to the original hard drive and it does exactly the same thing. I have no problem replacing the power supply but I'm curious what the chances are that it's the power supply vs the motherboard and/or if I'd be charged a restocking fee if the power supply doesn't fix it and I'd end up needing to buy a new Tivo anyway.
Thanks!
Thanks!
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