Most systems drive an ordinary TV or PC monitor over HDMI or VGA, and for a home or small business that is perfectly fine. Control rooms and shops that keep a public-view display running all day are different: consumer panels are not rated for 24/7 duty and will dim, burn in or fail early — that is what surveillance-grade monitors are for.
The most common "monitor faults" are not faults in the panel at all, but resolution mismatches: a recorder set to output 4K into a screen that only accepts 1080p shows nothing, and looks exactly like a dead system. Knowing the recovery paths (app access, VGA fallback, reset procedures) turns a panic into a five-minute fix.
A public-view monitor at the entrance — showing shoppers themselves on camera — is one of the cheapest deterrents in retail, and we position them as part of coverage design, not decoration.
Brands we fit and service
The monitor market splits into hardware built for South African conditions and lookalikes that fail at the first hard season. These are the manufacturers we trust on our installations:
- Samsung
- LG
- AOC
- Hisense
See our brand guides for how these manufacturers compare.
When the monitor goes wrong
These are the failures we're called to most often — each with its symptoms, causes and our fix on the dedicated problems page:
- No display output — The recorder runs (app works, lights on) but the screen reports no signal.
- Wrong or shifted resolution — The picture is cropped, stretched, fuzzy, or the menu bar sits off-screen.
- HDMI or VGA port fault — Signal drops when the cable moves; snow, sparkles or intermittent blanking.
Need this fixed or installed?
Our CCTV Repairs service covers monitor work — quoted upfront and backed by our 12-month workmanship warranty.