Toshiba TLP-X2500B, Service Manual

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Chapter 8
8-2
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.
Software Version / Lamp time Used
Navigate through the Basic menu to the Setup menu.
Navigate to the Service menu.
Select info from the Service menu.
Verify software version
Verify the keys are not sticky.
Verify that the software version is current and that the lamp
is within its service life.
Perform the following tests