TECHNICAL SUPPORT - CAMERA FREQUENTLY ASKED QUESTIONS

 

1 WHAT ARE THE MAIN CHIPSET SOLUTIONS FOR I-MASTER CAMERAS?

Color 1/4" DSP Chipset, 420 TVL
Color 1/4" SHARP CCD, 420 TVL
Color 1/3" SONY CCD, 420 TVL
Color 1/3" HD digital sensor, 600 TVL
Color 1/3" SONY ICX639BK CCD, 600 TV L
Color 1/3" SONY CCD, Effio-E, 650 TVL

 

2 WHAT IS THE RELATION BETWEEN TV LINE AND PIXEL?

Generally speaking
420TVL is equal to 240,000 pixels
600TVL is equal to 480,000 pixels
650TVL is equal to 560,000 pixels

 

3 WHAT ARE THE MEANINGS OF AES, AGC, AWB, BLC, DNR, ATR, WDR & OSD MENU?

They are short for the camera functions.
AES --- Auto Electronic Shutter
AGC --- Auto Gain Control
AWB --- Auto White Balance
BLC --- Black Light Compensation
DNR --- Digital Noise Reduction
ATR --- Auto Target Recognition
WDR --- Wide Dynamic
OSD menu --- On-Screen Display Menu

 

4 WHAT IF IMAGE FLICKERS ON LCD SCREEN?

Firstly, pls check whether lens is facing strong light straightly.
Secondly, if lens is auto iris, pls check whether the connection is fixed.

 

5 WHAT IF IMAGE DISAPPEARS FROM TIME TO TIME?

Firstly, pls check whether video or power cable is broken.
Secondly, pls check whether BNC and plug is connected well.
Thirdly, pls check whether power supply is stable.
Fourthly, pls check whether BNC connector is oxidized. If yes, pls change to a new one.

 

6 WHAT IF IMAGE IS NOT CLEAR ON LCD SCREEN?

Firstly, pls check whether the lens and glass are stained.
Secondly, pls adjust the Brightness and Contrast Ratio of LCD screen to the best condition.
Thirdly, pls check whether lens is facing strong light straightly.

 

7 WHAT IF IMAGE BECOMES BLACK & WHITE IN DAYTIME?

Firstly, pls make sure video cable is not that long so that signal can stay stable.
Secondly, pls check whether LCD screen is changed to blank & white condition.