RGB Spectrum Quadra User's Guide - Manual (Page 120)

F I R M W A R E U P G R A D E S A N D T R O U B L E S H O O T I N G
System Troubleshooting
350-7951 Quadra User’s Guide 112
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Images have the wrong
aspect ratio (e.g., are
stretched) or are not
positioned correctly • Try selecting a different output from the “ Factory
Timing List ” to better match your display.
•
Determine that there is not a mismatch between your
output and the selected monitor display (e.g., 4:3 output
and 16:9 display monitor).
• Use the “ WindowSourceRectangle ” (WSR) and
“ WindowDestinationRectangle ” (WDR) functions to
check or modify the image’s aspect ratio.
Blank image (the output is
black) • Ensure that the source is properly connected to the system,
powered on and generating a signal.
•
Ensure that the correct input type is selected using the
“
INputSouRCe ” command.
Frozen image If an image is frozen after system start-up, turn freeze off using the
“
FReeZe ” command.
Missing imagery • Check the “ WindowSourceRectangle ” (WSR) value
to ensure the entire image is being processed.
• Check WSR and “ WindowDestinationRectangle ”
(WDR) to ensure that the source and destination
rectangles are delivering the entire video image.
Poor quality video • Check the video source for proper operation.
• Check that cables are in good condition and connected
correctly.
• Ensure that video sources are not double terminated.
Double termination can occur when one video source is
split into two using a “T” connector instead of a
distribution amplifier.
• If you are using a VCR, check the quality of the tape.
• Adjust the brightness using the “ BRIghtness ” command.
• Adjust contrast using the “ CONTrast ” command.
•
Adjust saturation as required using the “ SATuration ”
command.
• Adjust the hue as required using the “ HUE ” command.
No color on the S-Video
input
•
Check that the “ SATuration ” setting is set to normal.
Adjust as necessary.
• Check that the S-video cable is connected correctly.
•
Check that S-Video has been selected as the source using
the “
INputSouRCe ” command. If you select
Composite2 when you have an S-Video signal connected
to this port, the input will be displayed as a black and
white (luminance only) signal.
Aspect Ratio on a video
input is incorrect. Check the status of the “ VideoAspectRatio ” command. For a 4:3
aspect ratio signal, this should be set to normal.
Table D-1. Troubleshooting Guide(Continued)
Symptom Recommendations