Christie Roadie HD+35K, Руководство пользователя

Страница: 165 / 192

Section 5: Troubleshooting
Roadie HD+35K User Manual 5-5
020-100340-02 Rev. 1 (01-2010)
5.5.9 Display Appears Compressed (Vertically Stretched)
Check the following:
• The frequency of the pixel sampling clock is incorrect for the current source.
• Sizing and positioning options may be adjusted poorly for the incoming source signal.
• Use an anamorphic lens for typical HDTV and anamorphic DVD sources that have been re-sized and
vertically stretched, via 3rd-party software.
5.5.10Data is Cropped from Edges
To display the missing material, reduce image size to fill the display area available in the projector, then stretch
vertically to fill the screen from top to bottom. Add the anamorphic lens to regain image width, if required.
5.5.11Display Quality Appears to Drift from Good to Bad, Bad to Good
Check the following:
• The source input signal may be of low quality.
• The H or V frequency of the input may have changed at the source end.
5.5.12Display has Suddenly Froze
If the screen blacks out inexplicably, it is possible excessive voltage noise on the AC or ground input has
interrupted the projector's ability to lock on to a signal. Power down and up again.
5.5.13 Colors in the Display are Inaccurate
The color, tint, color space and/or color temperature settings may require adjustment at your input source, or in
the projector.
5.5.14 Display is Not Rectangular
Check the following:
• Check leveling of the projector. Ensure the lens surface and screen are parallel to one another.
NOTE:
Ensure the keystone setting is properly set.
5.5.15 Display is “Noisy”
Check the following:
• Display adjustment at the input source may be required. Adjust pixel tracking, phase and filter. Noise is
particularly common on YPbPr signals from a DVD player.
• Ensure the video input is terminated (
75
:
). If it is the last connection in a loop-through chain, the video input
should be terminated at the last source input only.
• The input signal and/or signal cables carrying the input signal may be of poor quality.
• If the distance between the input source device and the projector is greater than 25 feet, signal amplification/
conditioning may be required.
• If the source is a VCR or off-air broadcast, detail may be set too high.