Q-see Connector Problem Repair for BNC Security Cameras

An Easy fix for Security Cameras that cut-out or have a poor picture at times. This pertains to All Security Systems that use BNC connectors.
Update: You may also have to tighten the connectors on the back of the DVR, as well. Read on..
Also, after you tighten and connect the connectors, try to spin them. if they spin easily, tighten them again.
A tip of the hat to CHUCK PAV for this additional comment:
Another fix that I have run across is for the power connection. Using Stanley crimping pliers (the one with the prong to crimp a butt connector) take the male end of the power cable (the one that plugs into the camera) about 1/3 of the way from the outer end and put a SMALL (small) dimple on the metal jacket of the connector. This will tighten the inner barrel for the center pin and also make the outer jacket oval for a better connection as well.
Created by Rick Chaisse