Christie Roadie 25K, User Manual

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TROUBLESHOOTING
5-4
Roadie 25K User’s Manual
Data is cropped from edges
1. Check settings for Blanking.
2. If incoming data is still missing from the image, reduce the image size to within
the display area available in the projector.
Display quality appears to drift from good to bad, bad to good…
1. The source input signal may be of low quality.
2. The H or V frequency of the input may have changed at the source end.
The display has suddenly frozen…
1. If the screen blacks out inexplicably, it is possible that excessive voltage noise on
the AC or ground input has interrupted the projector’s ability to lock on to a
signal. Power down the projector and disconnect from AC. Then plug in again
and power up as usual.
Colors in the display are inaccurate…
1. The color, tint, color space, color temperature and/or other settings may require
adjustment.
2. Make sure you are using the proper channel for this source.
The display is not rectangular…
1. Check leveling of the projector. Make sure that the lens surface and screen are as
parallel to each other as possible.
2. Is the vertical offset correct? Adjust as necessary using the vertical offset knob.
3. Make sure the aperture in the anamorphic lens (if present) is correctly oriented.
The display is “noisy”…
1. Display adjustment at your input source may be required. Adjust pixel tracking,
phase and filter. Noise is particularly common on YPbPr signals from a DVD
player. (If using a PC source, adjust using a high-frequency test pattern with one
pixel on/off throughout.)
2. The video input may not be terminated. Make sure the video input is terminated
(75
S
). If it is the last connection in a loop-through chain, the video input should
be terminated at the last source input only.
3. The input signal and/or signal cables carrying the input signal may be of poor
quality.
4. If the distance between the input source device and the projector is greater than
25 feet, signal amplification/conditioning may be required.
5. If the source is a VCR or off-air broadcast, detail may be set too high.
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