What you'll notice
Signal drops when the cable moves; snow, sparkles or intermittent blanking.
Why it happens
A worn port, a failing cable, or corrosion in a humid environment.
How we fix it
We test with known-good cables, re-seat or replace the failed port where economic, and secure cabling so the connection is never load-bearing.
Still not working?
If the checks above haven't restored your monitor, this usually needs a technician. Our CCTV Repairs service covers exactly this fault.