Samsung SP-A900B Owner's Instructions Manual page 23

- Connecting using a HDMI/DVI cable
Connect the [HDMI 1/DVI IN] terminal on the back of the projector and the DVI output terminal of the DVD
player/Cable/Satellite box using a HDMI/DVI cable.
- Connecting using a HDMI cable
Connect the [HDMI 1/DVI IN] or [HDMI IN 2] terminal on the back of the projector and the HDMI output terminal of the
DVD player/Cable/Satellite box using a HDMI cable.
When the connection is finished, connect the power of your projector and DVD player/Cable/Satellite box.
Using the Projector
Turn on the projector and press the [HDMI1] button to select <HDMI 1>.
Press the [HDMI2] button to select <HDMI 2> if [HDMI2] is connected.
If "HDMI" mode cannot be selected, check whether the HDMI cable is connected correctly.
Connecting a DVD player/Cable/Satellite Box via Component