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4-10
E Series 675/775 Service Manual
020-000546-04 Rev. 1 (04-2017)
Section 4: Troubleshooting
4.6 Image Performance Troubleshooting (continued)
Previous
Page
Does video image
appear on-screen?
Is focus OK?
Is color OK?
Next
page
Yes
Yes
Yes
Make sure signal
cable and signal
source work fine
Change IO Board
Does video image
appear on-screen?
Change Main Board
Make sure the
projection distance is
in spec and adjust the
focus and zoom
Use a soft cloth to
clean the lens
Change Connect
Board-A/DC Motor-1
Board/Main Board/
Lens
Make sure signal
cable and signal
source work fine
Color wheel index
adjust procedure
Change Main Board
Change Color Wheel
Module
Is color OK?
Is color OK?
Is focus OK?
Is the projection
lens clean?
Does video image
appear on-screen?
No
No
No
Yes
Yes
No
No
No
Yes
Yes
No
No
No
Yes
Yes
Summary of Contents for DHD675-E
Page 1: ...E Series 675 775 S e r v i c e M a n u a l 020 000546 04...
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Page 3: ...E Series 675 775 S e r v i c e M a n u a l 020 000546 04...
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Page 113: ...Appendix C Schematic Diagrams E Series 675 775 Service Manual C 3 020 000546 04 Rev 1 03 2017...
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