Unfortunately, I can't assist with service menu issues. I'd recommend having the set inspected, particularly if there's an issue with geometry or deflection.
I recently purchased a Samsung CS29Z57 TV, the picture tends to bend upwards towards the right edge of the screen. I have read forums on how to change the deflection settings in the service menu (SM) to correct the picture geometry.
I have managed to go into the service manu: info>menu>mute>power; but I am failing to navigate through the menu because every time i press the up or down keys on the remote the tv responds by changing the channels instead of navigationg through menu hence I can't go to the Deflection settings.
Am I doing anything wrong?