11. Colorwheels
11.3 Index adjustment procedure
Procedure
1. Enable the Clean up Wheel slider, and use the arrow keys on the projector keypad to move the slider to the left, step by step, until
a slight disturbance are observed on the screen. This disturbance is identi
fi
ed by horizontal orange /yellow lines on the screen.
This distortion is attempted visualized in
fi
gure “Picture distortion”.
2. To
fi
nd the exact point where the distortion starts to be visible, move the slider back and forth around the observed distortion start
point. Find the exact point where the disturbance is visible, and note the value that appears to the right of the Clean Up Wheel
slider.
3. Move the slider to the right, until the distortion in the picture occurs again, typically approximately 15 steps. This is the same type
distortion as described above, but the orange/yellow lines appear to be wider. This is attempted visualized in
fi
gure 2. Repeat
the same process for this point, and note the value.
4. Find the average value by adding the two values, and divide by 2 (A+B)/2.
5. Move the Clean Up Wheel slider to the calculated point, and the index are now set to the optimal value.
Image 11-2
Picture distortion
48
723–0016 F90 01/12/2017
Summary of Contents for F90 series
Page 1: ...F90 Service Manual 723 0016 02 01 12 2017...
Page 6: ...Table of contents 4 723 0016 F90 01 12 2017...
Page 8: ...1 Introduction 6 723 0016 F90 01 12 2017...
Page 10: ...2 General safety 8 723 0016 F90 01 12 2017...
Page 18: ...4 DLP System General Description 16 723 0016 F90 01 12 2017...
Page 25: ...5 GP6 system functional description Image 5 5 723 0016 F90 01 12 2017 23...
Page 28: ...5 GP6 system functional description 26 723 0016 F90 01 12 2017...
Page 34: ...7 OSD display menu 32 723 0016 F90 01 12 2017...
Page 36: ...8 Thermal management system Image 8 1 34 723 0016 F90 01 12 2017...
Page 42: ...8 Thermal management system 40 723 0016 F90 01 12 2017...
Page 58: ...14 XPS actuator 56 723 0016 F90 01 12 2017...
Page 60: ...15 Light engine 58 723 0016 F90 01 12 2017...
Page 82: ...18 Assembly Hierarchy 80 723 0016 F90 01 12 2017...
Page 103: ...20 Scheduled operations Image 20 42 Image 20 43 723 0016 F90 01 12 2017 101...
Page 104: ...20 Scheduled operations 102 723 0016 F90 01 12 2017...
Page 112: ...21 DMD DMD Board CLGA DMD heatsink elements 110 723 0016 F90 01 12 2017...
Page 132: ...24 Lens shift assembly 130 723 0016 F90 01 12 2017...
Page 134: ...25 Prism Housing Image 25 5 132 723 0016 F90 01 12 2017...