Functional Tests - InFocus LP500 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, see
Troubleshooting on page 84.
Required equipment
Equipment
Composite video DVD player with
S-video capability
Commercially produced video to
test S-video, composite video,
and audio.
Audio & Video cables
Computer cables
RGB test screens in a
PowerPoint presentation
PC with digital video and sound
card
Remote control
Projection screen
LP500 Series 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 player to test the
video quality. DVD players reproduce colors better and project
sharper images. The least preferable is a VCR. If you must 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.
InFocus strongly suggests you use Video Essentials, Optimizing Your
Audio/Video System (available at Amazon.com).
Use the cables that come with the projector, including the Digital
Video Interface (DVI) cable.
M1-A and M1-DA cables for both analog and digital playback.
We recommend that you use the Test Patterns available on the
InFocus web site to check image quality.
Make sure the card has an M1 Digital Video Interface (DVI) output
port. The stereo audio card should have either a 3.5mm stereo audio
jack or RCA left and right output ports. The computer must have a
CD-ROM and a standard VESA connector for analog output.
Ensure that the remote has fresh AA batteries.
Use a flat screen, not a curved one.
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