Christie RPMX-D132U User Manual page 112

Section 6: Troubleshooting
The upper portion of the display is waving, tearing or jittering
This can sometimes occur with video or VCR sources. Check your source.
Portions of the display are cut off or wrap to the opposite edge
Resizing and/or blanking may need adjustment.
The display appears compressed (vertically stretched)
1. The frequency of the pixel sampling clock is incorrect for the current source.
2. Resizing, vertical stretch and positioning options may be improperly adjusted for the incoming source
signal.
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
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.
3. Check Color Wheel Calibration.
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. Check if Keystone is incorrectly set.
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 (75Ohms). If it is the last
connection in a loop-through chain, the video input should be terminated at the last source input only.
6-2 RPMX/RPMSP-D132U & RPMSP-D180U User Manual
020-100245-03 Rev. 1 (11-2010)