Yamaha YSP 1000 integration with Samsung TV

Hope my post falls into the right place, otherwise sorry to spoil the thread.
I recently bought a QE55Q85R TV, and I have connected my Yamaha YSP 1000 sound bar to the optical output. I have used [Univeral Remote] feature of the TV menu to control the YSP (that I could find in the devices drop down list).
Problem statement: Volume +/- of my YSP works fine, but the Samsung remote control does not switch my YSP ON/OFF.
Any help much appreciated, I am absolutely a fresher in Samsung world.