Optoma H55 Projector User Manual

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Volume


Press the       to decrease the volume.

Press the       to increase the volume.
Treble
The treble setting controls the higher frequencies of your audio source.

Press the       to decrease the treble.

Press the       to increase the treble.
Bass
The Bass setting controls the lower frequencies of your audio source.

Press the       to decrease the bass.

Press the       to increase the bass.
Stereo / Mono


Mono  : Mono sound effect.

Stereo  : Stereo sound effect.
Mute


Choose the...

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Menu Location
Choose the Menu location on the display screen.
Projection


Front-Desktop
The factory default setting.

Rear-Desktop
When you select this function, the projector reverses the image so you can
project behind a translucent screen.

Front-Ceiling
When you select this function, the projector turns the image upside down for
ceiling-mounted projection.

Rear-Ceiling
When you select this function, the projector reverses and turns the image
upside down at same time. You can project from...

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Problem : No image appears on screen.

Ensure all the cables and power connections are correctly and securely
connected as described in the “Installation” section.

Ensure the pins of connectors are not crooked or broken.

Check if the projection lamp has been securely installed. Please refer to the
“Changing the lamp” section.

Make sure you have removed the lens cap and the projector is switched on.
Problem : Partial, scrolling or incorrectly displayed image.

Press the “Re-Sync” button on...

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Problem : The screen of the Notebook or PowerBook computer is not
displaying your presentation.

If you are using Notebook PC:
Some Notebook PCs may deactivate their own computers’ screen when a
second display device is in use. Each of them has a different way to be
reactivated.  Refer to your computer’s documentation for detailed information.

If you are using an Apple PowerBook:
In Control Panels, open the PowerBook Display to select Video Mirroring “On”.
Problem : Image is unstable or...

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Changing the lamp
The projector will detect the lamp life itself.  It will show you a
warning message “Lamp is running out of standard lifetime. Be sure
to replace the lamp as soon as possible.” When you see this message,
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
is hot!  Allow it to cool down
before changing lamp!

Lamp Changing Procedure:
1.Turn off the power to the projector...

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Specifications
Light Valve - Single Chip DLPTM Technology
Contrast Ratio - 1000:1 (Full On / Full Off)
Lamp - 200W User Replaceable UHP Lamp
Number of Pixels - 1024 pixels(H) X 768 lines(V)
Displayable Color - 16.7M colors
Projection Lens - F/2.44~2.69  f=28.8~34.5mm with 1.2 x zoom &
focus
Projection Screen Size - 22”~305” Diagonal
Projection Distance - 3.7~40.7 ft (1.1m~12.4m)
      TV Line - 760 TV lines
Video Compatibility - NTSC/NTSC 4.43/PAL/PAL-M/PAL-N/
SECAM and HDTV compatible
-...

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