TDP-P75
Service Manual
Before beginning
Make sure the work surface where you perform the functional tests is level and clean.
Place the projector on a soft surface ( such as an anti-static mat ) when running the tests.
Connect the following the I/O panel on the projector.
1. Video player through Composite Video and S-video ports.
2. Audio sources through Audio ports (RCA) or 3.5mm mini-jack.
3. Personal computer through RGB cable.
Perform the following tests
Test
Verification
Power Up
Connect AC power, and turn the unit on.
Verify that the proper splash(logo)
screen
Appears.
Verify image quality.
Cosmetics and mechanicals
Adjust the projector so that the image is
Square. Make sure the lens is at a 90
degree angle to the wall.
Verify that the elevator and leveling foot
Are functional.
Verify that the focus and zoom rings
Operate properly.
Verify cosmetics.
Composite video from video source
Connect the yellow composite (RCA)
video
Connector to the projector.
(Ensure that no other video source is
connected to the projector)
Verify that the video automatically
synchronizes.
Verify there is no distortion, noise or
other abnormalities.
S-Video from video source
Connect the S-Video cable to the
projector.
Disconnect the yellow composite(RCA)
Video connector.
Verify that the video automatically
synchronizes.
Verify there is no distortion, noise or
other abnormalities.
Image keystone adjustment
Connect a video source to the projector.
Verify that image responds properly
when
You adjust the keystone setting.
Audio from audio source
Connect the audio cable to the projector.
Verify that audio source plays through
the
Projector's speaker.
Verify that the volume controls function
correctly.
Manual source selection
Manually select a connected source.
Verify that the projector switches to the
Manually-selected source.
Verify that the video automatically
synchronizes.
Verify there is no distortion, noise or
other abnormalities.
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