I recently bought a few 1.0 consoles with "no power" issues, 2 of them have this same 47K resistor marked R902 (measured from a good psu) and surrounding area burned, both resistors are basically ash. I have a couple of questions, is this a common issue with this model psu, is replacing these burnt components likely to save these things, or is the issue probably caused by something else that sent too much power through the resistor, such as the large transistor in front of it?
Here's a pic of what it's supposed to look like: