Hi, I could use some help. I've accessed the service menu, just to turn on Bluetooth. Unfortunately I had a look through the menus and now the picture on the TV (mu6120) has changed. It seems that the shadows & darker colours seem to be too dark. No definition. Dark blues, dark greens etc just look black. I did accidentally access the "hdmi calibration" could that be the problem? If anyone has the default service menu settings that I could check against mine. That would be point me in the right direction of the problem or if anyone knows the remidy to my problem that would be great.