TBK Camera 4 in 1
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www.tbkvision.com
Appendix: FAQ
Q: No picture with power on
A1: It may result for a wrong HD video signal selection, DVR and
camera must have the same HD video technology. Different HD
video technologies are incompatible between them. Go to 5.4.2
How to select HD video output in order to select the right HD
technology.
A2: It may result from abnormal power supply. Please check if the
power supply voltage and its polarity are correct. Besides, please
confirm if wires connection and monitors are normal.
Q: Unclear image output
A: It is caused by incomplete adjustment of the lens back focus. Set
focus from joystick attached on the camera wire. If not, please
check if the lens is in good condition, or the lens surface and
sensor surface exits foreign objects. If exits, it can be wiped by
degreasing cotton swab or lens paper.
Q: Horizontal interference fringes on image
A: This phenomenon is generally caused by too strong hum bar of
power supply, which needs to be filtered out. It may also be
related to the used monitor or peripheral devices.
Q: Constantly change of the ground color of image
