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Appendix A – Troubleshooting
Problem
No Video
Bad Video
Black Border
Poor video quality
Picture too bright
or too dark
Picture is off center
Menu in wrong
language
Check that all components in the system (monitor,
cameras, VCRs, multiplexers, etc.) have power and
are turned on.
Check that the camera lens cap is removed and the
lens is set to proper aperture.
Check cable(s) for proper connections and
condition.
Connect a known good video source directly to the
monitor to make certain the monitor is not the
problem.
If no video equipment is "looped through" the
monitor, make certain that a cable is NOT
connected to the loop-through connector.
Make certain the Under Scan LED is off.
Enter the Menu and adjust the Contrast, Brightness,
Color and Tint settings.
Check that the lens aperture is set correctly.
Enter the Menu and adjust the Brightness setting.
Enter the Menu and adjust the H-Position and V-
Positon as necessary.
Move the cursor to the bottom menu item using the
Up or Down buttons. Then, scroll through the
language choices using the Left and Right buttons.
Possible Solution
21-Inch Color Monitor
AMC21
9
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