Christie CS50-D100U, User Manual

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MAINTENANCE & TROUBLESHOOTING
4-12
RPMS, CS50 & CS70-D100U/UF User’s Manual
3. The gamma setting may be inadequate. It is recommended that the “default”
gamma setting be used for most sources.
4. The projection room may be too bright. Limit the amount of light reflecting off
the screen.
5. Ensure the projector is not too far from the screen.
6. Is the screen being viewed from the best angle? Check seating plans and viewing
angles.
7. Ensure the source is only terminated once.
8. The source (if non-video) may need sync tip clamping. Enter a check in the
Clamp Tip box in the Input Levels submenu.
9. Check if lamp operation mode changed – could indicate a lamp failure, lamp
turned off unexpectedly or fans failed. Check RS-232, LEDs and Lamp Status.
The display is reversed and/or upside down…
1. Image orientation is not set correctly. Access Image Orientation in the
Configuration menu. See Section 2.
Portions of the display are cut off or warp to the opposite edge…
1. Reduce top, bottom, left or right blanking from within the Size and Position
menu. Check adjustments.
2. Resizing may need some adjustment. Adjust until entire image is visible and
centered.
The display appears compressed or stretched…
1. The frequency of the pixel sampling clock is incorrect for the current source.
2. Size and position options may be adjusted incorrectly for the incoming source.
The image appears to drift from good to bad and visa versa…
1. The operating temperature of the projector may be fluctuating. Watch that the
projector is not located too close to heating/air conditioning vents.
2. The source input signal may be of low quality.
3. The horizontal or vertical frequency of the input may have changed at the source
end.
The display has suddenly frozen, or an unknown menu has appeared…
1. You may have accidentally entered a special engineering code using the
Func
key
in combination with certain numbers, or you may have selected the “Freeze
Image” option. Press
Exit
as necessary to cancel the function and return to
presentation level.
A split rolling image has appeared…
1. The electronics of the projector require resetting – press
Power
*
OFF
/
ON
and
then press
Func
9 9 9
.
The display is not sharp or “clean”…
1. More display adjustment may be required – focus, brightness, contrast, pixel
tracking, pixel phase, and detail.
2. If you are using a BNC T-connector, try using a distribution amplifier to boost
signal levels.
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