Acer PD725 User Manual page 31

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
aspect ratio by referring to the following:
Please select 4:3 aspect ratio type on your DVD player if you are
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playing a 16:9 DVD.
If you can't select 4:3 aspect ratio type on your DVD player,
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please select 4:3 aspect ratio in the on screen menu.
Problem: Image is reversed.
Select "Management" from the OSD and adjust the projection
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direction. See page 23.
Problem: Lamp burns out or makes a popping sound
When the lamp reaches its end of life, it will burn out and may
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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 33.
Problem: LED lighting message
Message
Standby State
Warming
Cooling
Normal
Error (Lamp failed)
Error (Fan failed)
Error (Over Temp.)
=>Light On
Appendices
Power LED
Green Red
Flashing
Flashing
=>Light Off
Temp LED Lamp LED
Flashing
Flashing
31 ... English