Ricoh Polaris-PJ1, Field Service Manual

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ADC Calibration
PC calibration
• After replacing the optical engine / main board assembly, do the following steps.
• If you do not have professional equipment such as Quantum Data 802B or CHROMA2327, use a
PC that supports HDTV resolution & has an independent graphics card to output the corresponding
PC pattern. You can download the “test pattern by PC” from the website as shown below.
Procedure
• Test equipment: Video generator.
• Test signal: Analog 1280 x 800@60Hz
• Test Pattern: 94% White(up)/6% Black (down) [A]
• Calibration pattern should be in full screen.
1. Get into Service Mode.( page 53 "How to Enter the Service Mode" )
5. Test & Inspection
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