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6.1 Test
After all components are installed and connected as the user's manual, please switch the power on
and then try to operate all features on all door stations and indoor phones as Part 5.
6.2 Troubleshooting
Common malfunctions
No feedback ring after pushing the call
button.Meanwhile the door station's
LED indicator doesn't turn on.
No image displayed. The others are
all ok.
Poor image quality
Receive a call but cannot answer.
Ghost image.
Unavailable to activate a 2nd camera.
Part 6. Troubleshooting
Possible reasons
Disconnection on the power supply or
socket.
Disconnection on the (red or black) signal
wires.
Disconnection on the (black) signal wire
of the indoor phone.
No video resistor connected on the indoor
phone.
Wrong matched video resistor connected.
Audio jumper is not on the right position
(usually AF).
No video resistor connected on the indoor
phone.
Two or more door stations share a same
address.
The power is too weak to support the whole
system.
20
Obviation
Replace the power supply or the socket.
Check and connect the wires.
Check and connect the wires.
Check and connect the video resistor.
Replace the wrong video resistor with a
correct one.
Use the audio jumper on the right position
accordingly.
Check and connect the video resistor.
Cut the code wires to make exclusive
address no. for every door station.
If use only one transformer, please add
another transformer/adapter.
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