My Rev A PhotoBridge just failed again. As long-time readers of this thread will know, I replaced the power supply almost exactly 1 year ago, and documented the procedure here:
http://frequal.com/roku/PowerSupplyRepl ... Guide.html
Yesterday my repaired PhotoBridge stopped working. It was still warm, but there was no component output and it was not visible on the network. The power light came on sometimes after plugging it in but the "busy" LED never flashes.
I tested the voltages at the motherboard connector, and they all match what is printed on the motherboard.
It seems that my motherboard has failed somehow. I will contact Roku to ask about their repair procedure. I hope they are willing to work on a PhotoBridge with a third-party power supply!
It actually doesn't look too hard to replace the motherboard as a DIY project, maybe they'll ship me a replacement motherboard.
Have others had Roku replace their PB motherboard? What was the quoted price? Do they still have spare motherboards available?