spb2012

Hi I bought a Signet 4CH.264 DVR from Jaycar. It was easy to setup and worked fine. Unfortunately, I made a mistake and reset its output from VGA to composite. That was stupid and all my fault. I have a monitor I can connect to with co-ax but of all the adapters I have, non allows me to connect. Is there a hardware reset button or something which lets me put the thing back to the factory defaults... or is there another way? Regards Alan