IDK MSD-702UHD User Manual page 145

Part of the bitmap is
cut off, or bitmap is
not displayed on the
full screen.
MSD-701UHD / 702UHD / 801UHD/ 802UHD User's Guide
If the bitmap resolution does not match the output resolution, the
bitmap may be partially cut off or may not be displayed on the full
screen, depending on settings of the aspect ratio and display
position. In this case, set the aspect ratio and display position as
needed.
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