Black cable serves as ground exactly like in every other device. Typically it utilizes black green red and white wire colours.

Wiring A 7 Pin Laptop Webcam Electrical Engineering Stack
Laptop webcam wiring diagram. Remove a small piece of the red black green and white isolation so you have bare wire. It is having one webcam and 2 micro phones left and right. Black wire serves as ground just like in every other apparatus. Get a usb a cable like in the image and cut it in the right length. Instead theres a 6 pin micro connector. The bottom of the board is covered with an insulating black paint like layer.
I took that off but only see the microscopic points where the connectors pins meet the board. Typically it utilizes black black red and white cable colours. In accordance with convert webcam to usb wiring diagram you will find only four wires used from the cable. The red one is for sure wire with dc ability of 5 volts. I have old non working dell laptop with webcam cn 07rgxf 72487 having 7 pin out. According to dell laptop webcam to usb wiring diagram you will find just four wires used in the cable.
Remove the plastic isolation the unshielded wires and the aluminium wrapper at the end you just cut. Hi there based on this writeup i bought a new webcam board ebay looks identical same product number but they now dont have those 6 solder points exposed. The red one is for sure cable with dc power of 5 volts. Connection of wiring to the laptop as black brown black red thin wire red brown thin wire black thin wire which i want to convert this webcam as usb camera. Connect the right wires from the usb cable with the webcam cables.