ADEMCO AMM12, Инструкция по установке и эксплуатации

Страница: 17 / 20

12-Inch B&W Monitor
AMM12
Appendix A – Troubleshooting
Problem
No Video
Bad Video
Video too bright
or dark
Possible Solution
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 coaxial cable(s) for proper connections and
condition.
Make certain the BRIGHT or CONTRAST control
knobs are not turned to their extreme positions.
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 SCAN MODE selector switch is set
to the correct standard. EIA is used in most of North
America. CCIR is used in most of Europe.
Adjust the BRIGHT knob.
Check that the lens aperture is set correctly
Bad video
contrast
Skewed picture
Rolling picture
Adjust the CONTRAST knob.
Adjust the H-HOLD knob.
Adjust the V-HOLD knob.
9