Hi all,
Thanks for this helpful topic.
I've just bought a car with a RNS-510 with a very very dim screen. As if the backlight isn't working. The unit functions, there is sound and I can operate the menus. Infact, it's all working as normal apart from the screen. I've tried adjusting the brightness but it's as if the backlight is off.
I've downloaded the 2760 firmware and burned to a CD. I inserted the disc, it rebooted and started the firmware installation - however the screen was still dim. Would this be the case until the firmware is replaced? This is my first attempt at a fix - otherwise I'll have to remove the unit and send it off to be repaired.
I've tried to get into the "secret" menu, but all I see is three radio mode options FM, AM and DAB. As I see DAB in the list, might this suggest the firmware has been upgraded at somepoint?
As anyone else had this issue? The screen is almost like an "inverse of colour" if that makes any sense?
Many thanks.