Optoma Projector Ex531 User Manual

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Appendices

 Image is out of focus
 Make sure the lens cap is removed.
 Adjust the Focus Ring on the projector lens. 
 Make sure the projection screen is between the required distance 
3.9 to 39.4 feet (.2 to 2.0 meters)
 from the projector.  
See page 6.
  The image is stretched when displaying 6:9 DVD title
 
When you play anamorphic DVD or 6:9 DVD, the projector will 
show the best image in 6:9 format on projector side.
 If you play 4:3 format DVD...

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Appendices

 Other Problems
 The projector stops responding to all controls
  If possible, turn off the projector, then unplug the power cord and 
wait at least 60 seconds before reconnecting power.
  Check that “Keypad Lock” is not activated by trying to control the\
 
projector with the remote control. 
 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...

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 On Screen Messages 
 Temperature warning:
 
 Fan failed:
 
 Lamp warning:
 
 Out of display range:
 
 
Remote Control Problems
 If the remote control does not work
 Check the operating angle of the remote control is within ±5° both horizontally and vertically of one of the IR receivers on the projector.
 Make sure there are not any obstructions between the remote control and the projector. Move to within 7 m (±0°) of the projector.
 Make sure the batteries are...

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Appendices

 Replacing the lamp
The projector automatically detects the lamp life. When the 
lamp life is nearing the end of use, you will receive a warning 
message.
When you see this message, please contact your local reseller 
or service center to change the lamp as soon as possible. 
Make sure the projector has been cooled down for at least 30 
minutes before changing the lamp. 
 Warning: Lamp compartment may be hot! Allow it to cool down 
before changing the lamp!
 Warning: To reduce the...

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Appendices

Lamp	Replacement	Procedure:
.  Switch off the power to the projector by pressing the “POWER” button. 
2.  Allow the projector to cool down for at least 30 minutes.
3.  Disconnect the power cord.
4.  Unscrew the two screws on the cover. 
5.  Lift up and remove the cover. 2 
6.  Unscrew the two screws on the lamp module. 3 
7.  Lift up the lamp handle and remove the lamp module slowly and carefully. 4 
To replace the lamp module, reverse the previous steps.
8.   Turn on...

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Appendices

Compatibility Modes
ModeResolutionV-Sync (Hz)H-Sync (KHz)
VGA640 × 350703.50
VGA640 × 3508537.90
VGA640 × 4008537.90
VGA640 × 480603.50
VGA640 × 4807237.90
VGA640 × 4807537.50
VGA640 × 4808543.30
VGA720 × 400703.50
VGA720 × 4008537.90
SVGA800 × 6005635.20
SVGA800 × 6006037.90
SVGA800 × 6007248.0
SVGA800 × 6007546.90
SVGA800 × 6008553.70
XGA024 × 7686048.40
XGA024 × 7687056.50
XGA024 × 7687560.00
XGA024 × 7688568.70
WXGA 280 ×...

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Appendices

 Video Compatibility
NTSCM (3.58MHz), 4.43 MHz, 480i/p @60Hz
PALB, D, G, H, I, M, N, 576i/p @50Hz
SECAMB, D, G, K, K, L
SDTV/HDTV480i/p, 576i/p, 720p@50Hz/60Hz, 080i/p@50Hz/60Hz
ModeResolutionV-Sync (Hz)H-Sync (KHz)
MAC LC 3”640 × 48066.6634.98
MAC II 3”640 × 48066.6835.00
MAC 6”832 × 62474.5549.73
MAC 9” 024 × 7687560.24
MAC52 × 87075.0668.68
MAC G4640 × 48060 3.35
i MAC DV024 × 7687560.00
i MAC DV52 × 8707568.49
i...

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Appendices

RS232	Commands
RS232	Pin	Assignments
Pin no.Spec.
N/A
2RXD
3TXD
4N/A
5GND
6N/A
7N/A
8N/A
9N/A
12345
6789
Pin no.NameI/O (From Projector Side)
TXDOUT
2RXDIN
3GNDGND
12
3 

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Appendices

RS232	Protocol	Function	List
RS232 Commands
Baud Rate : 9600Data Bits: 8Parity: NoneStop Bits:  Flow Control : NoneUART6550 FIFO: DisableProjector Return (Pass): PProjector Return (Fail): F 
XX=00-99, projector's ID,XX=00 is for all projectors  
. There is a  after all ASCII commands. 2. 0D is the HEX code for  in ASCII code.
SEND to projector...

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Appendices

SEND to projector                  --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 232 ASCII CodeHEX Code Function   Description...