Your Picture Flickers or Cuts Out When It Gets Dark
Night-vision lighting adds to the camera’s power demand.
A weak supply or poor connection may work during daylight
but cause problems when that lighting turns on.
This is a possibility, not a confirmed diagnosis.
Keep equipment parked and secured during testing.
Turn the system off before changing connections,
and change one item at a time.
1. Note when the picture fails.
Does it happen when the camera’s night lighting activates?
With an infrared camera, this may coincide with the
picture changing from color to black and white.
Note whether the picture flickers, disappears,
or repeatedly switches on and off.
2. Check the power supply.
Identify whether you use a cigarette-lighter style adapter,
hardwire kit, wall/AC adapter, or another supply.
Check that it is approved for your equipment.
The monitor lighting up does not prove that the
supply can operate the complete system under night load.
For a wall/AC adapter, note its part number and the
output voltage and current printed on its label.
A photo of the label is helpful.
Do not substitute a supply based only on plug fit.
If you have another known-working, approved power adapter,
you can compare operation using that adapter.
Disconnect power before changing connections.
Check long enough for the original nighttime problem
to occur.
3. Inspect accessible connections.
- Check power, camera, extension cable, and monitor
harness connections for looseness or corrosion.
- Look for bent pins, damaged connectors,
or pinched, crushed, or damaged wiring.
- Reconnect securely without forcing connectors.
4. Bypass the extension cable, if possible.
With the system off, connect the camera directly
to a compatible monitor harness input, using the
correct adapter if required. Restore power,
select that input, and check whether the picture
remains steady when night lighting activates.
Skip this test if the connections cannot be
reached safely.
5. Compare with another camera, if available.
Compare a known-working, compatible camera under
similar lighting conditions. Turn the system off
before swapping connections. Note whether one
camera or several cameras have the same problem.
What do your results mean?
- Another approved power adapter fixes it: The original adapter or its connection may
need evaluation.
- Bypassing the extension fixes it: The cable, its connections, or the installed
cable run may be contributing.
- Several cameras fail at night: A shared supply or connection may be involved.
- Only one camera fails: Its camera, tail, or individual cable connections
may need further testing.
Still having trouble? Select “Yes, I still need help” below.
Include your power-adapter details, whether one
or several cameras are affected, and what changed
during testing. Mention if other electrical
accessories affect the problem.
Do not open the camera or attempt internal repairs.