Resurrecting this old thread for a display problem of my own. I have a flaky backlight; sometimes it works as it should and sometimes it doesn't light at all. It seems that if it's been unplugged for a while it works properly, then stops after some period of time e.g. overnight the last time I checked. I'm doing more testing but...

Before I call Tech Support and get an RMA (it's still under warranty, a SB Rio Receiver) I wonder if anyone knows:

1. Is the backlight integral to the LCD or a separate device
2. Mention was made here of a driver for the backlight. Are there schematics available for people to use for themselves?

I don't want to go to the trouble to send the unit back to SB and risk that it will work while they have it, and they send it back untouched. So I want to understand this a little better first (I still have a few months before the warranty expires).