1. DS7208HVI-ST/SE Equipment Physical Interface
2. DS7208HVI-ST/SE Equipment Internal Structure
3. DS80054 Mainboard Hardware Principle Diagram
4. DS80054 Mainboard Hardware Modules Diagram
5. DS80054 Mainboard Hardware Module Introduction
5.1. Audio Video A/D Module
5.2. VGA Output Module (Local Preview Image Output Module)
5.3 VOUT Output Module (Local Preview Image Output Module)
5.4 Network Module
5.5
SATA Module
5.6. RS485 Module
5.7. Clock Module
5.8. Voice Talkback Module
5.9. Power Supply Module
6. DS80054 Mainboard Failure Analysis
6.1. First Meet VGA Display
6.2. First Meet VOUT Monitor
6.3 Fault Analysis
①
. No VGA Output
②
. No VOUT Output
③
. Image Problem
④
. Voice Problems
⑤
.RS485 Failure
⑥
. Internet Links
⑦
.SATA Hard Dish Fault
⑧
. Clock Fault
⑨
.VGA Output Color Devation
⑩
.USB Fault
Schedule: 1
Crystal Effect
Schedule:2 Voltage Effect
