Home Security Systems
Home Security System Repair Questions? Ask a Technician.
This could be a faulty DVR or a faulty power supply... Check to see if the cameras are powered off the supply as well and if so remove them and try powering up just the dvr... If the dvr powers up without the cameras then reconnect them one by one until the display again goes blank and that camera will have a faulty lead or camera. If dvr doesn't power up without cameras then it is either a faulty power supply or dvr, you could try a new power supply quite cheaply... If the DVR then you will need a serviceman...