HIKVISION DS7208HVI-ST/SE Product/Maintenance Manual - Page 15
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BD9328（U3）
BD9329（U2）
BD9328 (U1) : PIN 2 enter 12 V, PIN 3 output 5 V, mainly used for other
components provide normal work voltage
BD9329 (U2) : PIN 2 enter 12 V,PIN 3 output 5 V, mainly for the SATA hard
disk normal power BD9328 (U3) : PIN 2 enter 12 V,PIN 3 3.3 V, mainly used
for other components provide normal working voltage, power of MP8904
turn 1.2 V output
BD9328 (U4) : PIN 2 enter 12 V,PIN 1 output 1.8 V, mainly for the KY2010
system working voltage and DDR2 memory work voltage
BD9328 (U5) : PIN 2 enter 12 V,PIN 1 output 1.0 V, mainly for the KY2010
system start working voltage
MP8904 (UV3) :PIN 8 input 3.3 V,PIN 1 output 1.2 V, mainly for the TW2866
chip normal working voltage
BD9328 （ U1）
BD9328（U5）
BD9328 （U4）