Here is a photo of the entire rear panel of the STX-HD100, which, as you can see is very sparsely populated.
Starting on the far left of the rear panel is the AC power cord (which is not detachable), and the Master Power Switch. This switch must be on in order to enable the unit's operation using either the front panel Power/Standby button or the remote control.
Moving to the far right of the rear panel are the actual audio and video output connections of the STX-HD100. For a close-up look, and explanation, of these connectcions, proceed to the next photo.