Sanyo PLC-XU300A Owner's Manual page 50

Setting
Ceiling
When this function is set to On, the picture will be top/
bottom and left/right reversed. This function is used to
project the image from a ceiling-mounted projector.
Rear
When this function is set to On, the picture will be left/right
reversed. This function is used to project the image from
rear of the screen.
Terminal
The COMPUTER IN 2/MONITOR OUT terminal on the back
of the projector is switchable for computer input or monitor
output. (See page 9) Select Computer  or Monitor Out
ed
with the Point buttons.
Computer  . . computer input
Monitor Out . . monitor out
Terminal function is not available when selecting Computer
 to the input source. Change the input source to the others
(Computer1) so that the Terminal function will be available.
(p.25, 37, 38)
50
Ceiling
Rear
Terminal