HIKVISION DS7208HVI-SN Ürün/Bakım Kılavuzu - Sayfa 8
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Sayfayı Yazdır
- 1. Ds7208Hvi-St/Sn Equipment Physical Interface
- 2. Ds7208Hvi-St/Sn Equipment Internal Structure
- 3. Ds80061 Mainboard Hardware Principle Diagram
- 4. Ds80061 Mainboard Hardware Modules Diagram
- 5. Ds80061 Mainboard Hardware Module Introduction
- 6. Network Module
- 7. Power Supply Module
- 8. Ds80061 Mainboard Failure Analysis
74LV07
BAV99 :
If the PIN 3 of BAV99(Q9) is Low-level ( 0V ), Said system detects VGA
monitor;
If the PIN 3 of BAV99(Q9) is high-level (nearly 3.3V),said system doesn't detect
VGA monitor;
VGA
module
BAV99（Q3/7/8/9/10/11）
75Ω（RG4/5/6）
5.3. VOUT Output Module (Local Preview Image Output Module)
VOUT main control chip: SGM9111, PIN 3 pull-down 75Ωresistance
(RS188) grounding and input CVBS-OUT signal, PIN 4 through the
75Ωresistance (RS117) output VOUT signal, working voltage through a
RL50
Ω
1K
PIN4
PIN2
RL51
Ω
1K
components：
33Ω（RG27/28）
1K（RL51）
6303
5V
VS(Interlacing signal)
HS(Line signal)
5V
1K（RL50）
LVC07A