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High Performance 700TVL CCTV Dome Camera User Manual
APPENDIX B: TROUBLESHOOTING
APPENDIX B
Troubleshooting
Problem
Possible Cause
Nothing appears on the screen
- Check the power connection.
- Check the video signal cable connection to the monitor.
The video image is dim or not clear.
- If the camera lens is dirty, clean it with a soft, clean cloth.
- Adjust the monitor controls, if necessary.
- If the camera is facing a very strong light, change the camera position.
- Adjust the lens focus.
The screen is dark.
- Adjust the contrast control of the monitor.
- If you have an intermediate device, set the impedance (75Ω /Hi-Z) properly, and check the cable
connections.
The camera is not working properly and
the surface of the camera is hot.
- Verify that the camera is correctly connected to an appropriate regulated power source.
The MOTION DETECTION function is not
working
- Is “MOTION DETECTION” mode turned on?
- Check the setting of the MD AREA.
The image on the monitor flickers
- Make sure that the camera isn’t facing direct sunlight or fluorescent light. If necessary,change the camera
position.
Colors are not quite right.
- Check the settings in the WHITE BAL menu.
The SENS-UP does not work.
- Verify that the AGC setting in the EXPOSURE menu isn’t set to OFF.
- Check the SHUTTER setting in the EXPOSURE menu.
B.1 IR level adjustment
The IR level is preset at the factory. However, an adjustment potentiometer is provided on the OSD control board for environments
where the image brightness in dark conditions is not satisfactory after performing a Software Setup of the camera. To adjust the IR
level of the camera:
1.
With the camera operating in a dark environment, remove the camera dome to access the OSD control board.
2.
While observing the video image from the camera, use a #1 phillips screwdriver to turn the IR level adjustment
potentiometer clockwise and/or counter-clockwise until the image brightness is acceptable.
Video test port
OSD Joystick
IR LED gain
adjustment
3.
Reinstall the camera dome.
