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 2 or Monitor Out
with the Point buttons.
Computer 2 . . computer input
Monitor Out . . monitor out
Terminal function is not available when selecting Computer
2 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