Optoma Projector Ep783s User Manual

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Appendices
 Image is out of focus
 Make sure the lens cap is remove.
 Adjust the Focus Ring on the projector lens. 
 Make sure the projection screen is between the required Stan-
dard lens 3.9 to 41.0 feet (1.2 to 12.5 meters)/Tele lens 13.1 to 
58.0 feet (4.0 to 17.7 meters).
 The image is stretched when displaying 16:9 DVD title
When you play anamorphic DVD or 16:9 DVD, the projector 
will show the best image in 16:9 format on projector side.
If you play 4:3 format DVD title,...

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Intermission 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.
 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...

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Message
Power/Standby LEDTemp-LEDLamp-LED
(Blue)(Red)(Red)(Red)
Standby State(Input power cord)
Standby State(Burn in Mode)
Power on (Press power button)
Power off (Cooling)
Error (Over Temp.)
Error (Fan fail)Flashing
Error (Lamp fail)
Download Mode
 Message Reminders
 
 Fan failed:
 
 Temperature warning:
 
 Replacing the lamp:
 
  Status message for searching source:
 
Remote Control Problems
 If the remote control does not work
 Check the operating angle for the...

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Appendices
 Make sure there are no obstructions between the remote  
control and the projector. Move to within 6 m (20 ft) of the  
projector.
 Make sure the batteries are inserted correctly.
 Replace weak batteries in the remote control. 

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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...

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Appendices
Lamp Replacement Procedure:
1. Switch off the power to the projector by pressing the “Power/Standby” button.
2. Allow the projector to cool down for at least 30 minutes.
3. Disconnect the power cord.
4. Press OPEN and then pull down the lamp cover carefully. 
5. Open the lamp cover. 
6. Use a screwdriver to remove the 3 screws from the lamp module. 
7.  Remove the lamp module. 
To replace the lamp module, reverse the previous steps.
8.  Turn on the projector and use...

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1.  “*”compressed com-puter image.
2.  For widescreen resolution (WXGA), the compatibility support is depen-dent on Notebook/PC models.
Compatibility ModesCompatibility Modes
ModeResolutionV-Sync (Hz) 
AnalogDigital
VGA640 x 35070, 85***
VGA640 x 40085***
VGA640 x 48060, 72, 75, 8560, 72, 75, 85
VGA720 x 40070, 8570
SVGA800 x 60056, 60, 72, 75, 8560, 72, 75
XGA1024 x 76860, 70, 75, 8560, 70, 75
* SXGA1152 x 86470, 75, 85***
* SXGA1280 x 102460, 75, 8560, 75
* SXGA+1400 x...

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RS232 Commands and Protocol 
Function List
RS232 Pin Assignments
Pin no.NameI/O (From Projector Side
1NC__
2RXDIN
3TXDOUT
4NC__
5NC__
6NC__
7RS232RTS
8RS232CTS
9NC__
531
96 

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RS232 Protocol Function ListBaud Rate : 9600Stop Bits: 1 Projector Return (Pass): PData Bits: 8Flow Control : NoneProjector Return (Fail): F 
Parity: NoneUART16550 FIFO: DisableXX=01-99, projectors ID, XX=00 is for all projectors------------------------------------------------------------------------\
------------------------------------------------------- -----------------------------------------------------------------------
SEND to...

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------------------------------------------------------------------------\
------------------------------------------------------------------------------------------------------------------------------
SEND to projector------------------------------------------------------------------------\
------------------------------------------------------- -----------------------------------------------------------------------
232 ASCII CHEX Code...