Good,
Repair power suply must be very complicated and need some tools....
So the beter is to buy a new one, you can find the model on it : DPS-200PB-185 B
Here for example : DPS-200PB-185 B For 190W Delta Electronics Server Power Supply - 365PowerSupply.com - Dell Power Supply | HP Power...
Hi,
On thé power supply you must find how many volt you should find betwen the yellow and the black cable i mean 12DC
Please check and let me know
Regards
First
You must be connected to nvr with serial câble. 115200 8/N/1.
Keep key * puch untel you have thé prompt with #
So you will be able to pass comand for exemple help and enter.
Try pléase and let you know