7. Mechanical spares and servicing procedures
7. MECHANICAL SPARES AND SERVICING
PROCEDURES
Overview
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7.1
The color wheel and sensor
Overview
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Replacing the color wheel sensor
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Replacing the color wheel connection board
7.1.1
Description
Spoke
The spoke of a color wheel is the transition line between two different color segments.
RGBW color wheel
Color wheel with a red, a green, a blue and a white segment.
RGBRGB color wheel
Color wheel with two red, two green and two blue segments.
The projector type H250 has a RGBRGB color wheel, the projector type H400 (H500) has a RGBW color wheel.
Description of the color wheel
The color wheel is driven by a motor. The speed of the motor is controlled accurately by a locked loop and linear current control.
The revolution speed is three times the frame rate of the displayed image.
The position of the color wheel is detected by the sensor, which detects a black mark on the motor shaft.
This speed control and position detection makes it possible to accomplish a perfect synchronization of color wheel, lamp and DMD
reset driver.
R59770097 ID H250 / H500 15/05/2007
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Summary of Contents for iD H250
Page 1: ...iD H250 H500 Service manual R9010570 R9010520 R59770097 00 15 05 2007...
Page 10: ...1 Safety 6 R59770097 ID H250 H500 15 05 2007...
Page 22: ...2 General information 18 R59770097 ID H250 H500 15 05 2007...
Page 24: ...3 Software 20 R59770097 ID H250 H500 15 05 2007...
Page 68: ...5 Electronic spares and servicing procedures 64 R59770097 ID H250 H500 15 05 2007...
Page 84: ...6 Optical spares and servicing procedures 80 R59770097 ID H250 H500 15 05 2007...