Acer XD1170 Series Manual page 37

Problem: The image is outstretched when displaying 16:9
DVD.
The projector automatically detects 16:9 DVD and adjusts the
aspect ratio by digitizing to full screen with 4:3 default setting.
If the image is still outstretched, you will also need to adjust the as-
pect ratio by referring to the following:

Please select 4:3 aspect ratio type on your DVD player if you are
playing a 16:9 DVD.

If you can't select 4:3 aspect ratio type on your DVD player, please
select 4:3 aspect ratio in the on screen menu.
Problem: Image is reversed.

Select "Image" from the OSD and adjust the projection direction.
See page 22.
Problem: Lamp burns out or makes a popping sound

When the lamp reaches its end of life, it will burn out and may
make a loud popping sound. If this happens, the projector will
not turn on until the lamp module has been replaced. To replace
the lamp, follow the procedures in the "Replacing the Lamp". See
page 37.
Problem: LED lighting message
Message
Standby State
(Input power cord)
Lamp lighting
Power on
Power off (Cooling)
Error (Lamp fail)
Error (Thermal fail)
Error (Fan lock fail)
Error (Over Temp.)
Error (Lamp Breakdown)
=>Light On
Appendices
Power LED
Red Blue
Slow Flashing
Quick Flashing
=>Light Off
Temp LED Lamp LED
Flashing

... English