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4 inch CRT video doorbell black and white module display visual extension display building intercom extension display
  • 4 inch CRT video doorbell black and white module display visual extension display building intercom extension display
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4 inch CRT video doorbell black and white module display visual extension display building intercom extension display


Information du vendeur
秀外内中

Prix
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黑白显示模式 。是维修配件,产品不包邮 保修3个月 维修退货运费需要自理,

 

 

适用条件

3-1.输入电压:DC11.8V-15.0V

    ф20mm显像管使用功耗较大,电源负载能力0.7A,纹波小于0.3 Vp-p

3-2.视频信号:0.4~1.4Vp-p幅度。

4.电气参数

4-1测量条件

(1)电源电压        DC12.0V

(2)输入信号        CCIR标准信号,1Vp-p/75Ω视频信号(0.714Vp-p视频

                    信号,0.286Vp-p同步信号)

(3)控制电位器       对比度(1KΩ)……… 力学中心

                         亮度(50KΩ)………力学中心

(4)环境温度:      (15~35

(5)相对湿度:      10%~90%(RH)

(5)其他

    显示屏顶端应为朝东方并且水平放置,即测试人员面朝正东方向。

4-2电参数

(1)输入信号幅度:        75Ω 0.4~1.4Vp-p

(2)图像宽高比:          4:3

(3)图像重显率:          ≥80%

(4)中心偏移率:          ≤3%

(5)全屏最大亮度:        ≥100cd/m2    MIN

(6)亮度鉴别等级:        ≥10级

(7)水平分辨率(A区):    380线

(8)光栅几何失真(A区):  ≤5%

(9)扫描非线形失真(A区):≤12%

(10)同步范围:  行引入范围:15625 KHz±200Hz

                  行保持范围:15625 KHz±400Hz

                 场同步范围:47Hz±2Hz

 

 

 

 

[sku_label] => Array ( [1627207] => Array ( [0] => 7003750662 ) ) )
USD 10.725
1 Piece
Frais de transport intérieur en chine
$0 vers BuyToMe (2-5days)
Color Classification
Qté.
Quantité en inventaire 61
poids Estimation
843 (g)
 


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4 inch CRT video doorbell black and white module display visual extension display building intercom extension display