Dahua D User Manual - Page 10

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So far the device installation and cable connection are completed; you can check the image

via back-end coding device.

Note

1) Please use wide slotted screwdriver to avoid damaging screws during focus and zoom;

2) It is not allowed to twist screw violently when ZOOM is adjusted to W or T.

Please refer to Figure 3-2 for focusing operation

Please pay attention to the following points during focusing operation.

1. Zoom end is at W end by default when the product is delivered from factory, it has to adjust

clockwise when adjusting Zoom end for the first time.

2. It has to twist slowly when adjusting Focus end, you need to check the image definition

when twisting Focus end. It will encounter obvious resistance when it comes to the

limitation end if it misses the location of best definition during adjustment, at this moment,

please stop twisting Focus end.

3. It needs to select a proper slotted screwdriver when adjusting Zoom and Focus. It is

recommended that the size of screwdriver head should be 3.5*0.7mm (width*depth).

Please be aware to insert the screwdriver head to the bottom of focusing slot and then

begin to adjust.

Model B1 and B2

Figure 3-2