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Section 5: Troubleshooting
5-2
RPMX-RPMSP-D120U & RPMSP-D275U Setup Guide
020-100038-02 Rev. 1 (09/08)
2.
The source may be double terminated. Ensure the source is terminated only
once.
3.
The source (if non-video) may need a different sync tip clamp location.
4.
Adjust
LAMP POSITION
to optimize the position of the lamp for maximum
brightness.
The upper portion of the display is waving, tearing or jittering…
1.
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…
1.
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…
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.
Ensure 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. Ensure 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.
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Summary of Contents for RPMSP-D120U
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