Functional Tests - InFocus LP340B Service Manual

Functional Tests

You perform the functional tests after you've repaired the projector to make sure all components of the
projector operate properly. You can also perform the functional tests if you're having trouble determining
what is wrong with the projector. For additional help in diagnosing trouble with the projector, refer to
Troubleshooting.
Below is the list of equipment you need for the functional tests. Following that is the list of tests you need
to complete.
Required Equipment
Equipment
Video player
Commercially produced video
Audio cable
Audio adapter
RGB test screens
PC multimedia presentation
Executive Plus remote control
Projection screen
LP340/340B/350 Service Manual
Notes
Make sure the video player has an S-video Out port and cables. The
player should also have a Composite video output port (RCA).
InFocus strongly suggests you use a DVD or laser disc player to test
the video quality. DVD and laser disc players reproduce colors better
and project sharper images. The least preferable is a VCR. If you use
a VCR, make sure you use a commercially produced recording, not
one recorded from a broadcast source. The VCR must include an S-
video connector in addition to a composite connector.
You'll need the video in DVD, laser disc, or video cassette format.
Use the stereo audio cable that comes with the projector.
Required if the audio source has RCA left and right output ports. Not
required if the audio source has a 3.5 mm stereo audio jack.
Use the test patterns to check image quality. (Test patterns are
available at the ASC Resource Center at
www.infocus.com/service/asp/index
For example, you can use a PowerPoint presentation with sound,
photographs, graphics and .avi files.
Ensure that the remote has fresh AAA batteries.
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