NEC DP930SB-BK SpectraView User's Manual - English - Page 28
Troubleshooting - mitsubishi monitor
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UPC - 805736005776
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Troubleshooting 1. "Digital Monitor Not Found" SpectraView either could not find the monitor ID in the registry of device names or the monitor did not respond to the test digital command sent to it. a. Check the connection at the monitor. For Mitsubishi DP2060U monitors, the Digital Cable should be connected to Signal B, not Signal A. Signal A does not provide DC communication lines, or; b. You have connected the Digital Cable in reverse; the VGA connector at the USB end should always connect to the graphics card and never to the monitor, or; c. Since three microprocessors are involved in the SpectraView configuration (DDC controller in the monitor, microprocessor in the Digital Cable, and the host CPU), it is not unusual for these devices to get "out of sync" on powerdown/power-up sequences. To resync the microprocessors, unplug the USB cable from the Digital Cable and restart the computer. Replug the digital Cable USB connector and relaunch SpectraView. 2. Bad Calibrations If the DeltaE Tracking graph shows a bad calibration(DeltaE value of four or greater any place in the graph), it is probably from a bad dark current calibration. Repeat calibration with the sensor in the darkest possible location(covered with an opaque cloth or material, if possible) during the Measure Dark Current step. 28
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