Optoma Projector Ml550 User Manual

40English
Music Setup
Select and press  to activate music setup menu. The music setup menu provides the 
following options:
Play Mode  
Press  or  to select the video play mode. Options are: Once, Repeat Once, 
Repeat, and Random.
Show Spectrum  
Select On to show the spectrum plot while music is playing.
Auto Play  
Select On to play the music automatically while entering the music list. 

41English
Information
Display the current projector’s firmware version and date. 

42English
Appendices
Troubleshooting
If you experience problems with your projector, see the following troubl\
eshoot-
ing tips. If the problem persists, contact your local reseller or servic\
e center.
ProblemPossible Solution
No image appears on the 
screen
Ensure that the projector is turned on. y
Ensure that you have chosen the correct input source  y
on the OSD Source menu.
Ensure the external graphics port is enabled. If images  y
are not displayed properly, please upgrade the video 
driver of your...

43English
ProblemPossible Solution
The image is stretched 
when displaying a 16:9 
DVD
The projector automatically detects the input signal  y
format. It will maintain the aspect ratio of the projected 
image according to input signal format with an Original 
setting.
If the image is still stretched, adjust the aspect ratio  y
in the Display settings of the Advanced menu in the 
OSD.
LED warning indicator 
(LED) is solid amber
A projector LED has failed and the projector will auto- y
matically shut down....

44English
Guiding Signals
Projector StatusDescriptionPower
(Blue/Amber)
TEMP Warning
(Amber)
LED Warning
(Amber)
Standby modeProjector in Standby mode. Ready to power on.Amber
Flashing
OFFOFF
Power onProjector in Normal mode, ready to display an image.BLUEOFFOFF
Projector overheatedAir vents might be blocked or ambient temperature may be above 35 ºC. The projector automatically shuts down. Ensure that the air vents are not blocked and that the ambient temperature is within operational range. If the...

45English
Compatibility Modes (Analog/Digital)
ResolutionRefresh Rate (Hz)Hsync Frequency (KHz)Pixel Clock (MHz)
640 x 35070.08731.46925.175
720 x 40070.08731.46928.322
720 x 40070.08731.46928.322
640 x 48059.94031.46925.175
640 x 48075.00037.50031.500
640 x 48085.00843.26936.000
800 x 60060.31737.87940.000
800 x 60075.00046.87549.500
800 x 60085.06153.67456.250
1024 x 76860.00448.36365.000
1024 x 76875.02960.02378.750
1024 x 76884.99768.67794.500
1280 x 72059.85544.77274.500
1280 x...

46English
FOCUS
Tripod Mount the Projector
Screw a standard tripod into the screw hole on the projector.
Unit: mm
(Screw hole for tripod)
NOTE: 
The tripod and ceiling mount are optional accessories.1. 
Please note that damage resulting from incorrect installation will void \
the warranty.2. 
52.0
54.0
Insert Nut 1/4” - 20 UNCxL7.5mm