BenQ PB8250 Service Manual page 69

software system will detect the abnormal signal.
Sensor BD:
The Sensor BD provides the color wheel index signal to DMD BD. The CWINDEX shall indicate the
beginning of the red light on the DMD device. The phase of the display data on the DMD based on
the CWINDEX signal. It can be configured to delay the CWINDEX for electronic alignment of the
color wheel. The timing of CWINDEX and the delayed CWINDEX is shown in Figure 1.
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