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HIKVISION DS7208HVI-ST - DS80061 Mainboard Hardware Module Introduction

HIKVISION DS7208HVI-ST
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5. DS80061 Mainboard Hardware Module Introduction
5.1. Audio Video A/D Module
Video A/D Module Main Control ChipTW2866 Audio
TW2866US1PIN 6 control first audio inputinput matching resistance 100
(RU9) and capacitance (CS18)
TW2866US1PIN 13/17/21/25 control 1-4 road vedio inputBNC input
matching 4 HK-5 production tubeTVS2/4/6/8);4 75ΩresistanceRV2/4/6/8);
4 100ΩresistanceRU1/2/3/4); 4 capacitanceCS12/8/13/11))
TW2866US2PIN 13/17/21/25 control 5-8 road vedio inputBNC input
matching 4 HK-5 production tubeTVS1/3/5/7);4 75ΩresistanceRV1/3/5/7);
4 100ΩresistanceRU5/6/7/8); 4 capacitanceCS42/48/29/33))
27 M (Y4/Y5) : TW2866 work clock, PIN 82 input 27 M
Audio video A/D module component
100
Ω(
RU1-4
CS12/8/13/11
100
Ω(
RU9
TW2866
US1
75
Ω(
RV1-8
HK-5
TVS1-8
TW2866
US2
CS18
27M(Y4/5)
100
Ω(
5-8
电容
CS42/48/29/33

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